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Benatar M, Wuu J, Huey ED, McMillan CT, Petersen RC, Postuma R, McHutchison C, Dratch L, Arias JJ, Crawley A, Houlden H, McDermott MP, Cai X, Thakur N, Boxer A, Rosen H, Boeve BF, Dacks P, Cosentino S, Abrahams S, Shneider N, Lingor P, Shefner J, Andersen PM, Al-Chalabi A, Turner MR. The Miami Framework for ALS and related neurodegenerative disorders: an integrated view of phenotype and biology. Nat Rev Neurol 2024; 20:364-376. [PMID: 38769202 PMCID: PMC11216694 DOI: 10.1038/s41582-024-00961-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2024] [Indexed: 05/22/2024]
Abstract
Increasing appreciation of the phenotypic and biological overlap between amyotrophic lateral sclerosis (ALS) and frontotemporal dementia, alongside evolving biomarker evidence for a pre-symptomatic stage of disease and observations that this stage of disease might not always be clinically silent, is challenging traditional views of these disorders. These advances have highlighted the need to adapt ingrained notions of these clinical syndromes to include both the full phenotypic continuum - from clinically silent, to prodromal, to clinically manifest - and the expanded phenotypic spectrum that includes ALS, frontotemporal dementia and some movement disorders. The updated clinical paradigms should also align with our understanding of the biology of these disorders, reflected in measurable biomarkers. The Miami Framework, emerging from discussions at the Second International Pre-Symptomatic ALS Workshop in Miami (February 2023; a full list of attendees and their affiliations appears in the Supplementary Information) proposes a classification system built on: first, three parallel phenotypic axes - motor neuron, frontotemporal and extrapyramidal - rather than the unitary approach of combining all phenotypic elements into a single clinical entity; and second, biomarkers that reflect different aspects of the underlying pathology and biology of neurodegeneration. This framework decouples clinical syndromes from biomarker evidence of disease and builds on experiences from other neurodegenerative diseases to offer a unified approach to specifying the pleiotropic clinical manifestations of disease and describing the trajectory of emergent biomarkers.
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Affiliation(s)
- Michael Benatar
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Joanne Wuu
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Edward D Huey
- Department of Psychiatry and Human Behaviour, Alpert Medical School of Brown University, Providence, RI, USA
| | - Corey T McMillan
- Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | | | - Ronald Postuma
- Department of Neurology, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Caroline McHutchison
- Human Cognitive Neuroscience, Department of Psychology, University of Edinburgh, Edinburgh, UK
- Euan MacDonald Centre for MND Research, University of Edinburgh, Edinburgh, UK
| | - Laynie Dratch
- Department of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Jalayne J Arias
- Department of Health Policy & Behavioral Sciences, School of Public Health, Georgia State University, Atlanta, GA, USA
| | | | - Henry Houlden
- UCL Institute of Neurology and The National Hospital for Neurology and Neurosurgery, London, UK
| | - Michael P McDermott
- Department of Biostatistics and Computational Biology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
- Department of Neurology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Xueya Cai
- Department of Biostatistics and Computational Biology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | | | - Adam Boxer
- Department of Neurology, University of California, San Francisco, CA, USA
| | - Howard Rosen
- Department of Neurology, University of California, San Francisco, CA, USA
| | | | - Penny Dacks
- Association for Frontotemporal Degeneration, King of Prussia, PA, USA
| | | | - Sharon Abrahams
- Human Cognitive Neuroscience, Department of Psychology, University of Edinburgh, Edinburgh, UK
- Euan MacDonald Centre for MND Research, University of Edinburgh, Edinburgh, UK
| | - Neil Shneider
- Department of Neurology, Columbia University, New York, NY, USA
| | - Paul Lingor
- Department of Neurology, Klinikum rechts der Isar der Technischen Universität München, Munich, Germany
| | - Jeremy Shefner
- Department of Neurology, Barrow Neurological Institute, Phoenix, AZ, USA
| | - Peter M Andersen
- Department of Clinical Science, Neurosciences, Umeå University, Umeå, Sweden
| | - Ammar Al-Chalabi
- Department of Basic and Clinical Neuroscience, Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK
- Department of Neurology, King's College Hospital, London, UK
| | - Martin R Turner
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
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Aloisio S, Satolli S, Bellini G, Lopriore P. Parkinsonism in complex neurogenetic disorders: lessons from hereditary dementias, adult-onset ataxias and spastic paraplegias. Neurol Sci 2023; 44:3379-3388. [PMID: 37648940 PMCID: PMC10495519 DOI: 10.1007/s10072-023-07044-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 08/22/2023] [Indexed: 09/01/2023]
Abstract
Parkinsonism is a syndrome characterized by bradykinesia in combination with either rest tremor, rigidity, or both. These features are the cardinal manifestations of Parkinson's disease, the most common cause of parkinsonism, and atypical parkinsonian disorders. However, parkinsonism can be a manifestation of complex neurological and neurodegenerative genetically determined disorders, which have a vast and heterogeneous motor and non-motor phenotypic features. Hereditary dementias, adult-onset ataxias and spastic paraplegias represent only few of this vast group of neurogenetic diseases. This review will provide an overview of parkinsonism's clinical features within adult-onset neurogenetic diseases which a neurologist could face with. Understanding parkinsonism and its characteristics in the context of the aforementioned neurological conditions may provide insights into pathophysiological mechanisms and have important clinical implications, including diagnostic and therapeutic aspects.
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Affiliation(s)
- Simone Aloisio
- Department of Advanced Medical and Surgical Sciences (DAMSS), University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Sara Satolli
- Molecular Medicine for Neurodegenerative and Neuromuscular Diseases Unit, IRCCS Fondazione Stella Maris, Pisa, Italy
| | - Gabriele Bellini
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | - Piervito Lopriore
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy.
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Bhattacharjee S, Kobylecki C. Frontotemporal Dementia-Parkinsonism Due to MAPT Gene Variant Presenting with Rest and Action Tremor. Tremor Other Hyperkinet Mov (N Y) 2023; 13:35. [PMID: 37746582 PMCID: PMC10516137 DOI: 10.5334/tohm.804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/13/2023] [Indexed: 09/26/2023] Open
Abstract
A 50-year-old male presented with a four-year history of gradually progressive rest tremor in the distal right lower limb and then spreading to the left lower limb in last 10-12 months. He developed right arm rest and action tremor two years later. Magnetic resonance imaging scans showed progressive frontotemporal and asymmetrical mesial temporal atrophy. Genetic testing revealed a heterozygous c.915+16C>T pathogenic variant in intron 9 of the MAPT gene. Presentation with rest tremor should not exclude frontotemporal dementia-parkinsonism due to a MAPT variant as a differential diagnosis though rest tremor is a rare presentation.
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Affiliation(s)
- Shakya Bhattacharjee
- Department of Neurology, Manchester Centre for Clinical Neurosciences, Northern Care Alliance NHS Foundation Trust, Stott Lane, Salford, M6 8HD, UK
| | - Christopher Kobylecki
- Department of Neurology, Manchester Centre for Clinical Neurosciences, Northern Care Alliance NHS Foundation Trust, Manchester Academic Health Sciences Centre, University of Manchester, Manchester, UK
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Garcia Ruiz PJ, Feliz LD, Feliz CE, Sanchez IL, Fernandez AA, Kelly FB, Tiebas MJT, del Val J, Vinagre IN. The enduring enigma of sporadic chorea: A single center case series. Tremor Other Hyperkinet Mov (N Y) 2023; 13:33. [PMID: 37692071 PMCID: PMC10487123 DOI: 10.5334/tohm.800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 08/24/2023] [Indexed: 09/12/2023] Open
Abstract
Chorea can have a wide variety of causes including neurodegenerative, pharmacological, structural, metabolic, infectious, immunologic and paraneoplastic processes. We reviewed the clinical records of patients with apparently sporadic choreic movements and no relevant family history, who presented to our neurology department (Hospital Fundación Jimenez Diaz) between 1991 and 2022. We detected 38 cases of apparent sporadic chorea (ASC); Our analysis revealed 5 cases of genetic chorea (including 3 cases with Huntington's disease) while 6 cases were autoimmune/hematological; 6 drug-related chorea, 5 metabolic-vascular, 5 due to miscellaneous conditions and 4 were of mixed etiology. No clear etiology was identified in 8 cases. The differential diagnosis of ASC is extensive and challenging. Highlights Chorea can have a wide variety of genetic and sporadic causesWe reviewed the clinical records of patients with apparently sporadic chorea (ASC), who presented to our neurology department over the last 30 yearsWe detected 38 cases of apparent ASC; Our analysis revealed a wide array of different sporadic conditions and 5 cases of genetic choreaThe differential diagnosis of ASC is extensive and challenging.
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Affiliation(s)
| | - Lola Diaz Feliz
- Department of Neurology, Fundacion Jimenez Diaz, Madrid, Spain
| | - Cici E. Feliz
- Department of Neurology, Fundacion Jimenez Diaz, Madrid, Spain
| | | | | | | | | | - Javier del Val
- Department of Neurology, Fundacion Jimenez Diaz, Madrid, Spain
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Naskar A, Nayak A, Salaikumaran MR, Vishal SS, Gopal PP. Phase separation and pathologic transitions of RNP condensates in neurons: implications for amyotrophic lateral sclerosis, frontotemporal dementia and other neurodegenerative disorders. Front Mol Neurosci 2023; 16:1242925. [PMID: 37720552 PMCID: PMC10502346 DOI: 10.3389/fnmol.2023.1242925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/21/2023] [Indexed: 09/19/2023] Open
Abstract
Liquid-liquid phase separation results in the formation of dynamic biomolecular condensates, also known as membrane-less organelles, that allow for the assembly of functional compartments and higher order structures within cells. Multivalent, reversible interactions between RNA-binding proteins (RBPs), including FUS, TDP-43, and hnRNPA1, and/or RNA (e.g., RBP-RBP, RBP-RNA, RNA-RNA), result in the formation of ribonucleoprotein (RNP) condensates, which are critical for RNA processing, mRNA transport, stability, stress granule assembly, and translation. Stress granules, neuronal transport granules, and processing bodies are examples of cytoplasmic RNP condensates, while the nucleolus and Cajal bodies are representative nuclear RNP condensates. In neurons, RNP condensates promote long-range mRNA transport and local translation in the dendrites and axon, and are essential for spatiotemporal regulation of gene expression, axonal integrity and synaptic function. Mutations of RBPs and/or pathologic mislocalization and aggregation of RBPs are hallmarks of several neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD), and Alzheimer's disease. ALS/FTD-linked mutations of RBPs alter the strength and reversibility of multivalent interactions with other RBPs and RNAs, resulting in aberrant phase transitions. These aberrant RNP condensates have detrimental functional consequences on mRNA stability, localization, and translation, and ultimately lead to compromised axonal integrity and synaptic function in disease. Pathogenic protein aggregation is dependent on various factors, and aberrant dynamically arrested RNP condensates may serve as an initial nucleation step for pathologic aggregate formation. Recent studies have focused on identifying mechanisms by which neurons resolve phase transitioned condensates to prevent the formation of pathogenic inclusions/aggregates. The present review focuses on the phase separation of neurodegenerative disease-linked RBPs, physiological functions of RNP condensates, and the pathologic role of aberrant phase transitions in neurodegenerative disease, particularly ALS/FTD. We also examine cellular mechanisms that contribute to the resolution of aberrant condensates in neurons, and potential therapeutic approaches to resolve aberrantly phase transitioned condensates at a molecular level.
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Affiliation(s)
- Aditi Naskar
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States
| | - Asima Nayak
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States
| | | | - Sonali S. Vishal
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States
| | - Pallavi P. Gopal
- Department of Pathology, Yale School of Medicine, New Haven, CT, United States
- Program in Cellular Neuroscience, Neurodegeneration, and Repair, Yale School of Medicine, New Haven, CT, United States
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Chu S, Xie X, Payan C, Stochaj U. Valosin containing protein (VCP): initiator, modifier, and potential drug target for neurodegenerative diseases. Mol Neurodegener 2023; 18:52. [PMID: 37545006 PMCID: PMC10405438 DOI: 10.1186/s13024-023-00639-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/27/2023] [Indexed: 08/08/2023] Open
Abstract
The AAA+ ATPase valosin containing protein (VCP) is essential for cell and organ homeostasis, especially in cells of the nervous system. As part of a large network, VCP collaborates with many cofactors to ensure proteostasis under normal, stress, and disease conditions. A large number of mutations have revealed the importance of VCP for human health. In particular, VCP facilitates the dismantling of protein aggregates and the removal of dysfunctional organelles. These are critical events to prevent malfunction of the brain and other parts of the nervous system. In line with this idea, VCP mutants are linked to the onset and progression of neurodegeneration and other diseases. The intricate molecular mechanisms that connect VCP mutations to distinct brain pathologies continue to be uncovered. Emerging evidence supports the model that VCP controls cellular functions on multiple levels and in a cell type specific fashion. Accordingly, VCP mutants derail cellular homeostasis through several mechanisms that can instigate disease. Our review focuses on the association between VCP malfunction and neurodegeneration. We discuss the latest insights in the field, emphasize open questions, and speculate on the potential of VCP as a drug target for some of the most devastating forms of neurodegeneration.
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Affiliation(s)
- Siwei Chu
- Department of Physiology, McGill University, Montreal, HG3 1Y6, Canada
| | - Xinyi Xie
- Department of Physiology, McGill University, Montreal, HG3 1Y6, Canada
| | - Carla Payan
- Department of Physiology, McGill University, Montreal, HG3 1Y6, Canada
| | - Ursula Stochaj
- Department of Physiology, McGill University, Montreal, HG3 1Y6, Canada.
- Quantitative Life Sciences Program, McGill University, Montreal, Canada.
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Piervincenzi C, Suppa A, Petsas N, Fabbrini A, Trebbastoni A, Asci F, Giannì C, Berardelli A, Pantano P. Parkinsonism Is Associated with Altered SMA-Basal Ganglia Structural and Functional Connectivity in Frontotemporal Degeneration. Biomedicines 2023; 11:biomedicines11020522. [PMID: 36831058 PMCID: PMC9953061 DOI: 10.3390/biomedicines11020522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Patients with frontotemporal degeneration (FTD) often manifest parkinsonism, which likely results from cortical and subcortical degeneration of brain structures involved in motor control. We used a multimodal magnetic resonance imaging (MRI) approach to investigate possible structural and/or functional alterations in FTD patients with and without parkinsonism (Park+ and Park-). METHODS Thirty FTD patients (12 Park+, 18 Park-) and 30 healthy controls were enrolled and underwent 3T MRI scanning. MRI analyses included: (1) surface-based morphometry; (2) basal ganglia and thalamic volumetry; (3) diffusion-based probabilistic tractography of fiber tracts connecting the supplementary motor area (SMA) and primary motor cortex (M1) to the putamen, globus pallidus, and thalamus; and (4) resting-state functional connectivity (RSFC) between the aforementioned regions. RESULTS Patients in Park+ and Park- groups showed comparable patterns of cortical thinning in frontotemporal regions and reduced thalamic volume with respect to controls. Only Park+ patients showed reduced putaminal volume and reduced fractional anisotropy of the fibers connecting the SMA to the globus pallidus, putamen, and thalamus, with respect to controls. Park+ patients also showed decreased RSFC between the SMA and putamen with respect to both Park- patients and controls. CONCLUSIONS The present findings support the hypothesis that FTD patients with parkinsonism are characterized by neurodegenerative processes in specific corticobasal ganglia-thalamocortical motor loops.
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Affiliation(s)
- Claudia Piervincenzi
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Antonio Suppa
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
- IRCCS NEUROMED, 86077 Pozzilli, Italy
| | - Nikolaos Petsas
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
| | - Andrea Fabbrini
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
| | | | - Francesco Asci
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
- IRCCS NEUROMED, 86077 Pozzilli, Italy
| | - Costanza Giannì
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
- IRCCS NEUROMED, 86077 Pozzilli, Italy
| | - Alfredo Berardelli
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
- IRCCS NEUROMED, 86077 Pozzilli, Italy
| | - Patrizia Pantano
- Department of Human Neurosciences, Sapienza University of Rome, 00185 Rome, Italy
- IRCCS NEUROMED, 86077 Pozzilli, Italy
- Correspondence: ; Tel.: +39-0649914719
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Schievink WI, Maya M, Barnard Z, Taché RB, Prasad RS, Wadhwa VS, Moser FG, Nuño M. The reversible impairment of behavioral variant frontotemporal brain sagging syndrome: Challenges and opportunities. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2022; 8:e12367. [PMID: 36544987 PMCID: PMC9760785 DOI: 10.1002/trc2.12367] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 12/23/2022]
Abstract
Introduction Due to loss of brain buoyancy, spontaneous spinal cerebrospinal fluid (CSF) leaks cause orthostatic headaches but also can cause symptoms indistinguishable from behavioral variant frontotemporal dementia (bvFTD) due to severe brain sagging (including the frontal and temporal lobes), as visualized on brain magnetic resonance imaging. However, the detection of these CSF leaks may require specialized spinal imaging techniques, such as digital subtraction myelography (DSM). Methods We performed DSM in the lateral decubitus position under general anesthesia in 21 consecutive patients with frontotemporal dementia brain sagging syndrome (4 women and 17 men; mean age 56.2 years [range: 31-70 years]). Results Nine patients (42.8%) were found to have a CSF-venous fistula, a recently discovered type of CSF leak that cannot be detected on conventional spinal imaging. All nine patients underwent uneventful surgical ligation of the fistula. Complete or near-complete and sustained resolution of bvFTD symptoms was obtained by all nine patients, accompanied by reversal of brain sagging, but in only three (25.0%) of the twelve patients in whom no CSF-venous fistula could be detected (P = 0.0011), and who were treated with non-targeted therapies. Discussion Concerns about a spinal CSF leak should not be dismissed in patients with frontotemporal brain sagging syndrome, even when conventional spinal imaging is normal. However, even with this specialized imaging the source of the loss of spinal CSF remains elusive in more than half of patients.
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Affiliation(s)
- Wouter I. Schievink
- Department of NeurosurgeryCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Marcel Maya
- Department of ImagingCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Zachary Barnard
- Department of NeurosurgeryCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Rachelle B. Taché
- Department of NeurosurgeryCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Ravi S. Prasad
- Department of ImagingCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Vikram S. Wadhwa
- Department of ImagingCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Franklin G. Moser
- Department of ImagingCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Miriam Nuño
- Department of Public Health SciencesUniversity of CaliforniaDavisCaliforniaUSA
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Zecca C, Tortelli R, Carrera P, Dell'Abate MT, Logroscino G, Ferrari M. Genotype-phenotype correlation in the spectrum of frontotemporal dementia-parkinsonian syndromes and advanced diagnostic approaches. Crit Rev Clin Lab Sci 2022; 60:171-188. [PMID: 36510705 DOI: 10.1080/10408363.2022.2150833] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The term frontotemporal dementia (FTD) refers to a group of progressive neurodegenerative disorders characterized mainly by atrophy of the frontal and anterior temporal lobes. Based on clinical presentation, three main clinical syndromes have traditionally been described: behavioral variant frontotemporal dementia (bvFTD), non-fluent/agrammatic primary progressive aphasia (nfPPA), and semantic variant PPA (svPPA). However, over the last 20 years, it has been recognized that cognitive phenotypes often overlap with motor phenotypes, either motor neuron diseases or parkinsonian signs and/or syndromes like progressive supranuclear palsy (PSP) and cortico-basal syndrome (CBS). Furthermore, FTD-related genes are characterized by genetic pleiotropy and can cause, even in the same family, pure motor phenotypes, findings that underlie the clinical continuum of the spectrum, which has pure cognitive and pure motor phenotypes as the extremes. The genotype-phenotype correlation of the spectrum, FTD-motor neuron disease, has been well defined and extensively investigated, while the continuum, FTD-parkinsonism, lacks a comprehensive review. In this narrative review, we describe the current knowledge about the genotype-phenotype correlation of the spectrum, FTD-parkinsonism, focusing on the phenotypes that are less frequent than bvFTD, namely nfPPA, svPPA, PSP, CBS, and cognitive-motor overlapping phenotypes (i.e. PPA + PSP). From a pathological point of view, they are characterized mainly by the presence of phosphorylated-tau inclusions, either 4 R or 3 R. The genetic correlate of the spectrum can be heterogeneous, although some variants seem to lead preferentially to specific clinical syndromes. Furthermore, we critically review the contribution of genome-wide association studies (GWAS) and next-generation sequencing (NGS) in disentangling the complex heritability of the FTD-parkinsonism spectrum and in defining the genotype-phenotype correlation of the entire clinical scenario, owing to the ability of these techniques to test multiple genes, and so to allow detailed investigations of the overlapping phenotypes. Finally, we conclude with the importance of a detailed genetic characterization and we offer to patients and families the chance to be included in future randomized clinical trials focused on autosomal dominant forms of FTLD.
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Affiliation(s)
- Chiara Zecca
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro", Pia Fondazione Card G. Panico Hospital, Tricase, Italy
| | - Rosanna Tortelli
- Neuroscience and Rare Diseases Discovery and Translational Area, Roche Pharma Research and Early Development, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Paola Carrera
- Unit of Genomics for Human Disease Diagnosis and Clinical Molecular Biology Laboratory, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Maria Teresa Dell'Abate
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro", Pia Fondazione Card G. Panico Hospital, Tricase, Italy
| | - Giancarlo Logroscino
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro", Pia Fondazione Card G. Panico Hospital, Tricase, Italy.,Department of Basic Medicine Sciences, Neuroscience, and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
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Tiloca C, Goldwurm S, Calcagno N, Verde F, Peverelli S, Calini D, Zecchinelli AL, Sangalli D, Ratti A, Pezzoli G, Silani V, Ticozzi N. TARDBP mutations in a cohort of Italian patients with Parkinson’s disease and atypical parkinsonisms. Front Aging Neurosci 2022; 14:1020948. [PMID: 36247987 PMCID: PMC9557978 DOI: 10.3389/fnagi.2022.1020948] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundAggregates of TAR DNA-binding protein of 43 kDa (TDP-43) represent the pathological hallmark of most amyotrophic lateral sclerosis (ALS) and of nearly 50% of frontotemporal dementia (FTD) cases but were also observed to occur as secondary neuropathology in the nervous tissue of patients with different neurodegenerative diseases, including Parkinson’s disease (PD) and atypical parkinsonism. Mutations of TARDBP gene, mainly in exon 6 hotspot, have been reported to be causative of some forms of ALS and FTD, with clinical signs of parkinsonism observed in few mutation carriers.MethodsDirect DNA sequencing of TARDBP exon 6 was performed in a large Italian cohort of 735 patients affected by PD (354 familial and 381 sporadic) and 142 affected by atypical parkinsonism, including 39 corticobasal syndrome (CBS) and 103 progressive sopranuclear palsy (PSP). Sequencing data from 1710 healthy, ethnically matched controls were already available.ResultsFour TARDBP missense variants (p.N267S, p. G294A, p.G295S, p.S393L) were identified in four patients with typical PD and in two individuals with atypical parkinsonism (1 CBS and 1 PSP). None of the detected mutations were found in healthy controls and only the variant p.N267S was previously described in association to idiopathic familial and sporadic PD and to CBS.ConclusionIn this study we provide further insight into the clinical phenotypic heterogeneity associated with TARDBP mutations, which expands beyond the classical ALS and FTD diseases to include also PD and atypical parkinsonism, although with a low mutational frequency, varying considerably in different Caucasian populations. In addition, our study extends the spectrum of TARDBP pathogenetic mutations found in familial and sporadic PD.
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Affiliation(s)
- Cinzia Tiloca
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Stefano Goldwurm
- Parkinson Institute of Milan, ASST Gaetano Pini/CTO, Milan, Italy
| | - Narghes Calcagno
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Neurology Residency Program, Università degli Studi di Milano, Milan, Italy
| | - Federico Verde
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, “Dino Ferrari” Center, Università degli Studi di Milano, Milan, Italy
| | - Silvia Peverelli
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Daniela Calini
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | | | - Davide Sangalli
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Neurology – Stroke Unit, A. Manzoni Hospital – ASST Lecco, Lecco, Italy
| | - Antonia Ratti
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Gianni Pezzoli
- Parkinson Institute of Milan, ASST Gaetano Pini/CTO, Milan, Italy
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, “Dino Ferrari” Center, Università degli Studi di Milano, Milan, Italy
| | - Nicola Ticozzi
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan, Italy
- Department of Pathophysiology and Transplantation, “Dino Ferrari” Center, Università degli Studi di Milano, Milan, Italy
- *Correspondence: Nicola Ticozzi,
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Schönecker S, Martinez-Murcia FJ, Rauchmann BS, Franzmeier N, Prix C, Wlasich E, Loosli SV, Bochmann K, Gorriz Saez JM, Laforce R, Ducharme S, Tartaglia MC, Finger E, de Mendonça A, Santana I, Sanchez-Valle R, Moreno F, Sorbi S, Tagliavini F, Borroni B, Otto M, Synofzik M, Galimberti D, Vandenberghe R, van Swieten J, Butler C, Gerhard A, Graff C, Danek A, Rohrer JD, Masellis M, Rowe J, Levin J. Frequency and Longitudinal Course of Motor Signs in Genetic Frontotemporal Dementia. Neurology 2022; 99:e1032-e1044. [PMID: 35948443 PMCID: PMC9519250 DOI: 10.1212/wnl.0000000000200828] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 04/21/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Frontotemporal dementia (FTD) is a highly heritable disorder. The majority of genetic cases are caused by autosomal dominant pathogenic variants in the chromosome 9 open reading frame 72 (c9orf72), progranulin (GRN), and microtubule-associated protein tau (MAPT) gene. As motor disorders are increasingly recognized as part of the clinical spectrum, the current study aimed to describe motor phenotypes caused by genetic FTD, quantify their temporal association, and investigate their regional association with brain atrophy. METHODS We analyzed baseline visit data of known carriers of a pathogenic variant in the c9orf72, GRN, or MAPT gene from the Genetic Frontotemporal Dementia Initiative cohort study. Principal component analysis with varimax rotation was performed to identify motor sign clusters that were compared with respect to frequency and severity between groups. Associations with cross-sectional atrophy patterns were determined using voxel-wise regression. We applied linear mixed effects models to assess whether groups differed in the association between motor signs and estimated time to symptom onset. RESULTS A total of 322 pathogenic variant carriers were included in the analysis: 122 c9orf72 (79 presymptomatic), 143 GRN (112 presymptomatic), and 57 MAPT (43 presymptomatic) pathogenic variant carriers. Principal component analysis revealed 5 motor clusters, which we call progressive supranuclear palsy (PSP)-like, bulbar amyotrophic lateral sclerosis (ALS)-like, mixed/ALS-like, Parkinson disease (PD) like, and corticobasal syndrome-like motor phenotypes. There was no significant group difference in the frequency of signs of different motor phenotypes. However, mixed/ALS-like motor signs were most frequent, followed by PD-like motor signs. Although the PSP-like phenotype was associated with mesencephalic atrophy, the mixed/ALS-like phenotype was associated with motor cortex and corticospinal tract atrophy. The PD-like phenotype was associated with widespread cortical and subcortical atrophy. Estimated time to onset, genetic group and their interaction influenced motor signs. In c9orf72 pathogenic variant carriers, motor signs could be detected up to 25 years before expected symptom onset. DISCUSSION These results indicate the presence of multiple natural clusters of motor signs in genetic FTD, each correlated with specific atrophy patterns. Their motor severity depends on time and the affected gene. These clinicogenetic associations can guide diagnostic evaluations and the design of clinical trials for new disease-modifying and preventive treatments.
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Affiliation(s)
- Sonja Schönecker
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Francisco J Martinez-Murcia
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Boris-Stephan Rauchmann
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Nicolai Franzmeier
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Catharina Prix
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Elisabeth Wlasich
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Sandra V Loosli
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Katja Bochmann
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Juan-Manuel Gorriz Saez
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Robert Laforce
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Simon Ducharme
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Maria Carmela Tartaglia
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Elizabeth Finger
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Alexandre de Mendonça
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Isabel Santana
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Raquel Sanchez-Valle
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Fermin Moreno
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Sandro Sorbi
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Fabrizio Tagliavini
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Barbara Borroni
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Markus Otto
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Matthis Synofzik
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Daniela Galimberti
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Rik Vandenberghe
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - John van Swieten
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Christopher Butler
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Alexander Gerhard
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Caroline Graff
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Adrian Danek
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Jonathan D Rohrer
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Mario Masellis
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - James Rowe
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany
| | - Johannes Levin
- From the Department of Neurology (S. Schönecker, C.P., E.W., S.V.L., A.D., J.L.), Ludwig-Maximilians-Universität München, Germany; Department of Signal Theory Networking and Communications (F.J.M.-M., J.-M.G.S.), Andalusian Research Institute in Data Science and Computational Intelligence (DaSCI), University of Granada, Spain; Institute for Clinical Radiology (B.-S.R.), Institute for Stroke and Dementia Research (N.F.), and Institute of Neuroradiology (K.B.), Ludwig-Maximilians-Universität München, Germany; Département des Sciences Neurologiques (R.L.), Clinique Interdisciplinaire de Mémoire (CIME); McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University; Department of Psychiatry (S.D.), McGill University Health Centre, McGill University, Montreal, Quebec; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), University of Toronto; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London, Canada; Department of Neurology and Laboratory of Neurosciences (A.M.), Faculty of Medicine, University of Lisbon; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, Centro Hospitalar e Universitário de Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Alzheimer's Disease and Other Cognitive Disorders Unit (R.S.-V.), Neurology Service, Hospital Clinic, Institut d'Investigacions Biomediques August Pi I Sunyer; Institut d'Investigació Biomèdica August Pi I Sunyer (R.S.-V.), Barcelona; Department of Neurology (F.M.), Donostio University Hospital, San Sebastian; Neuroscience Area (F.M.), Biodonostia Health Research Institute, San Sebastian, Gipuzkoa, Spain; Department of Neuroscience, Psychology, Drug Research and Child Health (S. Sorbi), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S. Sorbi), Florence; Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Istituto Neurologica Carlo Besta (F.T.), Milano; Centre for Neurodegenerative Disorders (B.B.), Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Italy; Department of Neurology (M.O.), University Hospital Ulm; Department of Neurology (M.O.), Martin-Luther-University Halle-Wittenberg, Germany Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen; Center for Neurodegenerative Diseases (M.S.), Tübingen, Germany; Fondazione IRCCS Ospediale Policlinico (D.G.), Milan; Centro Dino Ferrari (D.G.), University of Milan, Italy; Leuven Brain Institute (LBI) (R.V.), KU Leuven; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Department (R.V.), UZ Leuven, Belgium; Department of Neurology (J.S.), Erasmus Medical Centre, Rotterdam, the Netherlands; Nuffield Department of Clinical Neurosciences (C.B.), Medical Sciences Division, University of Oxford; Department of Brain Sciences (C.B.), Imperial College London; Wolfson Molecular Imaging Centre (A.G.), Faculty of Medicine, Biology and Health, University of Manchester, United Kingdom; Departments of Geriatric Medicine and Nuclear Medicine (A.G.), Essen University Hospital, Germany; Swedish FTD Initiative (C.G.), Stockholm; Division of Neurogeriatrics (C.G.), Centre for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet Solna; Unit for Hereditary Dementias (C.G.), Theme Aging, Karolinska University Hospital, Stockholm, Sweden; Dementia Research Centre (J.D.R.), University College London, United Kingdom; Hurvitz Brain Sciences Program (M.M.), Sunnybrook Research Institute, University of Toronto; Division of Neurology (M.M.), Department of Medicine, University of Toronto; Cognitive and Movement Disorders Clinic (M.M.), Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Cognition and Brain Sciences Unit (J.R.), Medical Research Council; Department of Clinical Neurosciences (J.R.), University of Cambridge; Cambridge University Hospitals NHS Trust (J.R.), United Kingdom; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster for Systems Neurology (SyNergy) (J.L.); and European Reference Network for Rare Neurological Diseases (ERN-RND) (J.L.), Munich, Germany.
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Pressman PS, Chen KH, Casey J, Sillau S, Chial HJ, Filley CM, Miller BL, Levenson RW. Incongruences Between Facial Expression and Self-Reported Emotional Reactivity in Frontotemporal Dementia and Related Disorders. J Neuropsychiatry Clin Neurosci 2022; 35:192-201. [PMID: 35989572 PMCID: PMC10723939 DOI: 10.1176/appi.neuropsych.21070186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Emotional reactivity normally involves a synchronized coordination of subjective experience and facial expression. These aspects of emotional reactivity can be uncoupled by neurological illness and produce adverse consequences for patient and caregiver quality of life because of misunderstandings regarding the patient's presumed internal state. Frontotemporal dementia (FTD) is often associated with altered social and emotional functioning. FTD is a heterogeneous disease, and socioemotional changes in patients could result from altered internal experience, altered facial expressive ability, altered language skills, or other factors. The authors investigated how individuals with FTD subtypes differ from a healthy control group regarding the extent to which their facial expressivity aligns with their self-reported emotional experience. METHODS Using a compound measure of emotional reactivity to assess reactions to three emotionally provocative videos, the authors explored potential explanations for differences in alignment of facial expressivity with emotional experience, including parkinsonism, physiological reactivity, and nontarget verbal responses. RESULTS Participants with the three main subtypes of FTD all tended to express less emotion on their faces than they did through self-report. CONCLUSIONS Exploratory analyses suggest that reasons for this incongruence likely differ not only between but also within diagnostic subgroups.
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Affiliation(s)
- Peter S Pressman
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
| | - Kuan Hua Chen
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
| | - James Casey
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
| | - Stefan Sillau
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
| | - Heidi J Chial
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
| | - Christopher M Filley
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
| | - Bruce L Miller
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
| | - Robert W Levenson
- Department of Neurology Behavioral Neurology Section (Pressman, Filley), Alzheimer's and Cognition Center (Pressman, Sillau, Chial), Linda Crnic Institute for Down Syndrome (Chial), and Marcus Institute for Brain Health (Filley), University of Colorado Anschutz Medical Campus, Aurora; Berkeley Psychophysiology Laboratory, University of California, Berkeley (Chen, Casey, Levenson); Memory and Aging Center, University of California, San Francisco (Miller)
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13
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Ooi S, Patel SK, Eratne D, Kyndt C, Reidy N, Lewis C, Lee SC, Darby D, Brodtmann A. Plasma Neurofilament Light Chain and Clinical Diagnosis in Frontotemporal Dementia Syndromes. J Alzheimers Dis 2022; 89:1221-1231. [DOI: 10.3233/jad-220272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Frontotemporal dementia (FTD) syndromes, mimics, phenocopy (phFTD), and slowly progressive behavioral variant FTD (bvFTD) can be difficult to distinguish clinically. Biomarkers such as neurofilament light chain (NfL) may be helpful. Objective: To study plasma NfL levels in people with FTD syndromes and determine if plasma NfL can distinguish between FTD syndromes and phFTD. Methods: Plasma NfL levels were estimated using both Simoa ® Quanterix HD-X™ and SR-X™ machines grouped via final diagnosis after investigation and review. Results: Fifty participants were studied: bvFTD = 20, semantic variant FTD (svFTD) = 11, non-fluent variant FTD (nfvFTD) = 9, FTD with motor neuron disease (MND) = 4, phFTD = 2, slow progressors = 3, FTD mimic = 1, mean age 67.2 (SD 8.4) years. NfL levels were significantly higher in the FTD group compared to phenocopy group (p = 0.003). Median NfL (IQR) pg/mL was comparable in the FTD syndromes: bvFTD 41.10 (50.72), svFTD 44.38 (16.61), and nfvFTD 42.61 (22.93), highest in FTD with MND 79.67 (45.32) and lowest in both phFTD 13.99 (0.79) and slow progressors 17.97 (3.62). Conclusion: Plasma NfL appears to differentiate FTD syndromes and mimics. However, a lower NfL may predict a slower, but not necessarily lack of, neurodegeneration and therefore appears limited distinguishing slow progressors from FTD phenocopies. Larger numbers of patients from all clinical groups are required to strengthen diagnostic utility.
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Affiliation(s)
- Suyi Ooi
- Eastern Cognitive Disorders Clinic, Eastern Health, Box Hill, VIC, Australia
- Eastern Clinical Research Unit, Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC, Australia
- Royal Melbourne Hospital, Department of Neurology, Parkville, VIC, Australia
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
| | - Sheila K Patel
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
| | - Dhamidhu Eratne
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
- Neuropsychiatry and Melbourne Neuropsychiatry Centre, Royal Melbourne Hospital and University of Melbourne, Parkville, VIC, Australia
| | - Christopher Kyndt
- Eastern Cognitive Disorders Clinic, Eastern Health, Box Hill, VIC, Australia
- Eastern Clinical Research Unit, Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC, Australia
- Royal Melbourne Hospital, Department of Neurology, Parkville, VIC, Australia
| | - Natalie Reidy
- Eastern Cognitive Disorders Clinic, Eastern Health, Box Hill, VIC, Australia
| | - Courtney Lewis
- Eastern Cognitive Disorders Clinic, Eastern Health, Box Hill, VIC, Australia
- Neuropsychiatry and Melbourne Neuropsychiatry Centre, Royal Melbourne Hospital and University of Melbourne, Parkville, VIC, Australia
| | - Sarah C.M. Lee
- Eastern Clinical Research Unit, Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC, Australia
- Calvary Health Care Bethlehem, Parkdale, VIC, Australia
| | - David Darby
- Eastern Cognitive Disorders Clinic, Eastern Health, Box Hill, VIC, Australia
- Eastern Clinical Research Unit, Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC, Australia
- Royal Melbourne Hospital, Department of Neurology, Parkville, VIC, Australia
- Alfred Health, Department of Neurology, Prahran, Australia
| | - Amy Brodtmann
- Eastern Cognitive Disorders Clinic, Eastern Health, Box Hill, VIC, Australia
- Eastern Clinical Research Unit, Eastern Health Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC, Australia
- Royal Melbourne Hospital, Department of Neurology, Parkville, VIC, Australia
- Florey Institute of Neuroscience and Mental Health, Parkville, VIC, Australia
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14
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Survival in Korean Patients with Frontotemporal Dementia Syndrome: Association with Behavioral Features and Parkinsonism. J Clin Med 2022; 11:jcm11082260. [PMID: 35456351 PMCID: PMC9025342 DOI: 10.3390/jcm11082260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 02/05/2023] Open
Abstract
We investigated the survival time of each clinical syndrome of frontotemporal dementia (FTD) and the impacts of behavioral and motor features on survival of FTD. A total of 216 patients with FTD [82 behavioral variant FTD (bvFTD), 78 semantic variant primary progressive aphasia (svPPA), 43 non-fluent/agrammatic variant PPA (nfvPPA), 13 FTD-motor neuron disease (MND)] were enrolled from 16 centers across Korea. Behaviors and parkinsonism were assessed using the Frontal Behavioral Inventory and Unified Parkinson’s Disease Rating Scale Part III, respectively. The Kaplan–Meier method was used for the survival analysis and the Cox proportional hazards model was applied for analysis of the effect of behavioral and motor symptoms on survival, after controlling vascular risk factors and cancer. An overall median survival of FTD was 12.1 years. The survival time from onset was shortest for FTD-MND and longest for svPPA. The median survival time of patients with bvFTD was unavailable but likely comparable to that of patients with nfvPPA. In the bvFTD group, negative behavioral symptoms and akinetic rigidity were significantly associated with survival. In the nfvPPA group, the presence of dysarthria had a negative impact on survival. These findings provide useful information to clinicians planning for care.
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Heikkinen S, Cajanus A, Katisko K, Hartikainen P, Vanninen R, Haapasalo A, Krüger J, Remes AM, Solje E. Brainstem atrophy is linked to extrapyramidal symptoms in frontotemporal dementia. J Neurol 2022; 269:4488-4497. [PMID: 35377014 PMCID: PMC9294011 DOI: 10.1007/s00415-022-11095-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/17/2022] [Accepted: 03/20/2022] [Indexed: 11/26/2022]
Abstract
AbstractExtrapyramidal (EP) symptoms are a known feature in a subpopulation of patients with behavioral variant frontotemporal dementia (bvFTD). Concomitant EP symptoms with FTD-like neuropsychiatric symptoms are also core features in progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD). This complicates the early diagnosis of these disorders. Our retrospective register study aimed to discover imaging (MRI and FDG-PET) biomarkers to differentiate PSP, CBD, and bvFTD patients with extrapyramidal symptoms (EP +) from bvFTD patients without EP symptoms (EP-). The records of 2751 patients were screened for the diagnoses and presence of EP symptoms. A total of 222 patients were submitted to imaging analysis and applicable imaging data were recovered from 139 patients. Neuroimaging data were analyzed using Freesurfer software. In the whole cohort, EP + patients showed lower volumes of gray matter compared to EP- patients in the putamen (p = 0.002), bilateral globus pallidum (p = 0.002, p = 0.042), ventral diencephalon (p = 0.002) and brain stem (p < 0.001). In the bvFTD subgroup, there was volumetric difference between EP + and EP− patients in the brain stem. FDG-PET scans in the bvFTD patient subgroup showed that EP + patients had comparative hypometabolism of the superior cerebellar peduncle (SCP) and the frontal lobes. We discovered that EP symptoms are linked to brainstem atrophy in bvFTD patients and the whole cohort. Also, evident hypometabolism in the SCP of bvFTD EP + patients was detected as compared to bvFTD EP− patients. This could indicate that the EP symptoms in these diseases have a more caudal origin in the brainstem than in Parkinson’s disease.
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Affiliation(s)
- Sami Heikkinen
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, P.O. Box 1627 (Yliopistonranta 1C), 70211, Kuopio, Finland
| | - Antti Cajanus
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, P.O. Box 1627 (Yliopistonranta 1C), 70211, Kuopio, Finland
| | - Kasper Katisko
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, P.O. Box 1627 (Yliopistonranta 1C), 70211, Kuopio, Finland
| | | | - Ritva Vanninen
- Department of Radiology, Kuopio University Hospital, Kuopio, Finland
- Institute of Clinical Medicine - Radiology, University of Eastern Finland, Kuopio, Finland
| | - Annakaisa Haapasalo
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Johanna Krüger
- Research Unit of Clinical Neuroscience, Neurology, University of Oulu, Oulu, Finland
- MRC, Oulu University Hospital, Oulu, Finland
| | - Anne M Remes
- Research Unit of Clinical Neuroscience, Neurology, University of Oulu, Oulu, Finland
- MRC, Oulu University Hospital, Oulu, Finland
| | - Eino Solje
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, P.O. Box 1627 (Yliopistonranta 1C), 70211, Kuopio, Finland.
- Neuro Center, Kuopio University Hospital, Kuopio, Finland.
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Bellenguez C, Küçükali F, Jansen IE, Kleineidam L, Moreno-Grau S, Amin N, Naj AC, Campos-Martin R, Grenier-Boley B, Andrade V, Holmans PA, Boland A, Damotte V, van der Lee SJ, Costa MR, Kuulasmaa T, Yang Q, de Rojas I, Bis JC, Yaqub A, Prokic I, Chapuis J, Ahmad S, Giedraitis V, Aarsland D, Garcia-Gonzalez P, Abdelnour C, Alarcón-Martín E, Alcolea D, Alegret M, Alvarez I, Álvarez V, Armstrong NJ, Tsolaki A, Antúnez C, Appollonio I, Arcaro M, Archetti S, Pastor AA, Arosio B, Athanasiu L, Bailly H, Banaj N, Baquero M, Barral S, Beiser A, Pastor AB, Below JE, Benchek P, Benussi L, Berr C, Besse C, Bessi V, Binetti G, Bizarro A, Blesa R, Boada M, Boerwinkle E, Borroni B, Boschi S, Bossù P, Bråthen G, Bressler J, Bresner C, Brodaty H, Brookes KJ, Brusco LI, Buiza-Rueda D, Bûrger K, Burholt V, Bush WS, Calero M, Cantwell LB, Chene G, Chung J, Cuccaro ML, Carracedo Á, Cecchetti R, Cervera-Carles L, Charbonnier C, Chen HH, Chillotti C, Ciccone S, Claassen JAHR, Clark C, Conti E, Corma-Gómez A, Costantini E, Custodero C, Daian D, Dalmasso MC, Daniele A, Dardiotis E, Dartigues JF, de Deyn PP, de Paiva Lopes K, de Witte LD, Debette S, Deckert J, Del Ser T, Denning N, DeStefano A, Dichgans M, Diehl-Schmid J, Diez-Fairen M, Rossi PD, Djurovic S, Duron E, Düzel E, Dufouil C, Eiriksdottir G, Engelborghs S, Escott-Price V, Espinosa A, Ewers M, Faber KM, Fabrizio T, Nielsen SF, Fardo DW, Farotti L, Fenoglio C, Fernández-Fuertes M, Ferrari R, Ferreira CB, Ferri E, Fin B, Fischer P, Fladby T, Fließbach K, Fongang B, Fornage M, Fortea J, Foroud TM, Fostinelli S, Fox NC, Franco-Macías E, Bullido MJ, Frank-García A, Froelich L, Fulton-Howard B, Galimberti D, García-Alberca JM, García-González P, Garcia-Madrona S, Garcia-Ribas G, Ghidoni R, Giegling I, Giorgio G, Goate AM, Goldhardt O, Gomez-Fonseca D, González-Pérez A, Graff C, Grande G, Green E, Grimmer T, Grünblatt E, Grunin M, Gudnason V, Guetta-Baranes T, Haapasalo A, Hadjigeorgiou G, Haines JL, Hamilton-Nelson KL, Hampel H, Hanon O, Hardy J, Hartmann AM, Hausner L, Harwood J, Heilmann-Heimbach S, Helisalmi S, Heneka MT, Hernández I, Herrmann MJ, Hoffmann P, Holmes C, Holstege H, Vilas RH, Hulsman M, Humphrey J, Biessels GJ, Jian X, Johansson C, Jun GR, Kastumata Y, Kauwe J, Kehoe PG, Kilander L, Ståhlbom AK, Kivipelto M, Koivisto A, Kornhuber J, Kosmidis MH, Kukull WA, Kuksa PP, Kunkle BW, Kuzma AB, Lage C, Laukka EJ, Launer L, Lauria A, Lee CY, Lehtisalo J, Lerch O, Lleó A, Longstreth W, Lopez O, de Munain AL, Love S, Löwemark M, Luckcuck L, Lunetta KL, Ma Y, Macías J, MacLeod CA, Maier W, Mangialasche F, Spallazzi M, Marquié M, Marshall R, Martin ER, Montes AM, Rodríguez CM, Masullo C, Mayeux R, Mead S, Mecocci P, Medina M, Meggy A, Mehrabian S, Mendoza S, Menéndez-González M, Mir P, Moebus S, Mol M, Molina-Porcel L, Montrreal L, Morelli L, Moreno F, Morgan K, Mosley T, Nöthen MM, Muchnik C, Mukherjee S, Nacmias B, Ngandu T, Nicolas G, Nordestgaard BG, Olaso R, Orellana A, Orsini M, Ortega G, Padovani A, Paolo C, Papenberg G, Parnetti L, Pasquier F, Pastor P, Peloso G, Pérez-Cordón A, Pérez-Tur J, Pericard P, Peters O, Pijnenburg YAL, Pineda JA, Piñol-Ripoll G, Pisanu C, Polak T, Popp J, Posthuma D, Priller J, Puerta R, Quenez O, Quintela I, Thomassen JQ, Rábano A, Rainero I, Rajabli F, Ramakers I, Real LM, Reinders MJT, Reitz C, Reyes-Dumeyer D, Ridge P, Riedel-Heller S, Riederer P, Roberto N, Rodriguez-Rodriguez E, Rongve A, Allende IR, Rosende-Roca M, Royo JL, Rubino E, Rujescu D, Sáez ME, Sakka P, Saltvedt I, Sanabria Á, Sánchez-Arjona MB, Sanchez-Garcia F, Juan PS, Sánchez-Valle R, Sando SB, Sarnowski C, Satizabal CL, Scamosci M, Scarmeas N, Scarpini E, Scheltens P, Scherbaum N, Scherer M, Schmid M, Schneider A, Schott JM, Selbæk G, Seripa D, Serrano M, Sha J, Shadrin AA, Skrobot O, Slifer S, Snijders GJL, Soininen H, Solfrizzi V, Solomon A, Song Y, Sorbi S, Sotolongo-Grau O, Spalletta G, Spottke A, Squassina A, Stordal E, Tartan JP, Tárraga L, Tesí N, Thalamuthu A, Thomas T, Tosto G, Traykov L, Tremolizzo L, Tybjærg-Hansen A, Uitterlinden A, Ullgren A, Ulstein I, Valero S, Valladares O, Broeckhoven CV, Vance J, Vardarajan BN, van der Lugt A, Dongen JV, van Rooij J, van Swieten J, Vandenberghe R, Verhey F, Vidal JS, Vogelgsang J, Vyhnalek M, Wagner M, Wallon D, Wang LS, Wang R, Weinhold L, Wiltfang J, Windle G, Woods B, Yannakoulia M, Zare H, Zhao Y, Zhang X, Zhu C, Zulaica M, Farrer LA, Psaty BM, Ghanbari M, Raj T, Sachdev P, Mather K, Jessen F, Ikram MA, de Mendonça A, Hort J, Tsolaki M, Pericak-Vance MA, Amouyel P, Williams J, Frikke-Schmidt R, Clarimon J, Deleuze JF, Rossi G, Seshadri S, Andreassen OA, Ingelsson M, Hiltunen M, Sleegers K, Schellenberg GD, van Duijn CM, Sims R, van der Flier WM, Ruiz A, Ramirez A, Lambert JC. New insights into the genetic etiology of Alzheimer's disease and related dementias. Nat Genet 2022; 54:412-436. [PMID: 35379992 PMCID: PMC9005347 DOI: 10.1038/s41588-022-01024-z] [Citation(s) in RCA: 759] [Impact Index Per Article: 379.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 01/27/2022] [Indexed: 02/08/2023]
Abstract
Characterization of the genetic landscape of Alzheimer's disease (AD) and related dementias (ADD) provides a unique opportunity for a better understanding of the associated pathophysiological processes. We performed a two-stage genome-wide association study totaling 111,326 clinically diagnosed/'proxy' AD cases and 677,663 controls. We found 75 risk loci, of which 42 were new at the time of analysis. Pathway enrichment analyses confirmed the involvement of amyloid/tau pathways and highlighted microglia implication. Gene prioritization in the new loci identified 31 genes that were suggestive of new genetically associated processes, including the tumor necrosis factor alpha pathway through the linear ubiquitin chain assembly complex. We also built a new genetic risk score associated with the risk of future AD/dementia or progression from mild cognitive impairment to AD/dementia. The improvement in prediction led to a 1.6- to 1.9-fold increase in AD risk from the lowest to the highest decile, in addition to effects of age and the APOE ε4 allele.
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Affiliation(s)
- Céline Bellenguez
- Université de Lille, INSERM, CHU Lille, Institut Pasteur Lille, U1167-RID-AGE, Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France.
| | - Fahri Küçükali
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
- Laboratory of Neurogenetics, Institute Born - Bunge, Antwerp, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Iris E Jansen
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, Vrije University, Amsterdam, the Netherlands
| | - Luca Kleineidam
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University of Cologne, Medical Faculty, Cologne, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
| | - Sonia Moreno-Grau
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Najaf Amin
- Department of Epidemiology, Erasmus MC, Rotterdam, the Netherlands
- Nuffield Department of Population Health, Oxford University, Oxford, UK
| | - Adam C Naj
- Department of Biostatistics, Epidemiology, and Informatics, Penn Neurodegeneration Genomics Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Rafael Campos-Martin
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University of Cologne, Medical Faculty, Cologne, Germany
| | - Benjamin Grenier-Boley
- Université de Lille, INSERM, CHU Lille, Institut Pasteur Lille, U1167-RID-AGE, Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France
| | - Victor Andrade
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University of Cologne, Medical Faculty, Cologne, Germany
| | - Peter A Holmans
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
| | - Anne Boland
- CEA, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Vincent Damotte
- Université de Lille, INSERM, CHU Lille, Institut Pasteur Lille, U1167-RID-AGE, Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France
| | - Sven J van der Lee
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Section Genomics of Neurodegenerative Diseases and Aging, Department of Human Genetics Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Marcos R Costa
- Université de Lille, INSERM, CHU Lille, Institut Pasteur Lille, U1167-RID-AGE, Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Teemu Kuulasmaa
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Qiong Yang
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- Framingham Heart Study, Framingham, MA, USA
| | - Itziar de Rojas
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Joshua C Bis
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Amber Yaqub
- Department of Epidemiology, Erasmus MC, Rotterdam, the Netherlands
| | - Ivana Prokic
- Department of Epidemiology, Erasmus MC, Rotterdam, the Netherlands
| | - Julien Chapuis
- Université de Lille, INSERM, CHU Lille, Institut Pasteur Lille, U1167-RID-AGE, Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France
| | - Shahzad Ahmad
- Department of Epidemiology, Erasmus MC, Rotterdam, the Netherlands
- LACDR, Leiden, the Netherlands
| | - Vilmantas Giedraitis
- Department of Public Health and Carins Sciences/Geriatrics, Uppsala University, Uppsala, Sweden
| | - Dag Aarsland
- Centre of Age-Related Medicine, Stavanger University Hospital, Stavanger, Norway
- Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - Pablo Garcia-Gonzalez
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Carla Abdelnour
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Emilio Alarcón-Martín
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- Department of Surgery, Biochemistry and Molecular Biology, School of Medicine, University of Málaga, Málaga, Spain
| | - Daniel Alcolea
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, II B Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Montserrat Alegret
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Ignacio Alvarez
- Fundació Docència i Recerca MútuaTerrassa and Movement Disorders Unit, Department of Neurology, University Hospital MútuaTerrassa, Terrassa, Spain
- Memory Disorders Unit, Department of Neurology, Hospital Universitari Mutua de Terrassa, Terrassa, Spain
| | - Victoria Álvarez
- Laboratorio de Genética, Hospital Universitario Central de Asturias, Oviedo, Spain
- Servicio de Neurología, Hospital Universitario Central de Asturias- Oviedo and Instituto de Investigación Biosanitaria del Principado de Asturias, Oviedo, Spain
| | - Nicola J Armstrong
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Anthoula Tsolaki
- First Department of Neurology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Alzheimer Hellas, Thessaloniki, Greece
| | - Carmen Antúnez
- Unidad de Demencias, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Ildebrando Appollonio
- School of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
- Neurology Unit, San Gerardo Hospital, Monza, Italy
| | - Marina Arcaro
- Fondazione IRCCS Ca'Granda, Ospedale Policlinico, Milan, Italy
| | - Silvana Archetti
- Department of Laboratory Diagnostics, III Laboratory of Analysis, Brescia Hospital, Brescia, Italy
| | - Alfonso Arias Pastor
- Unitat Trastorns Cognitius, Hospital Universitari Santa Maria de Lleida, Lleida, Spain
- Institut de Recerca Biomedica de Lleida (IRBLLeida), Lleida, Spain
| | - Beatrice Arosio
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- Geriatic Unit, Fondazione Cà Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Henri Bailly
- EA 4468, Université de Paris, APHP, Hôpital Broca, Paris, France
| | - Nerisa Banaj
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Miquel Baquero
- Servei de Neurologia, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Sandra Barral
- Taub Institute on Alzheimer's Disease and the Aging Brain, Department of Neurology, Columbia University, New York, NY, USA
- Unit of Neurology, University of Parma and AOU, Parma, Italy
- Clinic of Neurology, UH 'Alexandrovska', Medical University - Sofia, Sofia, Bulgaria
| | - Alexa Beiser
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Boston University and the NHLBI's Framingham Heart Study, Boston, MA, USA
| | - Ana Belén Pastor
- CIEN Foundation/Queen Sofia Foundation Alzheimer Center, Madrid, Spain
| | - Jennifer E Below
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, USA
| | - Penelope Benchek
- Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, OH, USA
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Luisa Benussi
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Claudine Berr
- Neuropsychiatry: Epidemiological and Clinical Research, PSNREC, Université de Montpellier, INSERM U1061, Montpellier, France
| | - Céline Besse
- CEA, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Valentina Bessi
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
- Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Giuliano Binetti
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
- MAC - Memory Clinic, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | | | - Rafael Blesa
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, II B Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mercè Boada
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Eric Boerwinkle
- Human Genetics Center, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | - Barbara Borroni
- Centre for Neurodegenerative Disorders, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Silvia Boschi
- Department of Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy
| | - Paola Bossù
- Experimental Neuro-psychobiology Laboratory, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Geir Bråthen
- Department of Neurology and Clinical Neurophysiology, University Hospital of Trondheim, Trondheim, Norway
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
| | - Jan Bressler
- Human Genetics Center, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
- School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Catherine Bresner
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
| | - Henry Brodaty
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
- Dementia Centre for Research Collaboration, School of Psychiatry, University of New South Wales, Sydney, New South Wales, Australia
| | - Keeley J Brookes
- Biosciences, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Luis Ignacio Brusco
- Centro de Neuropsiquiatría y Neurología de la Conducta (CENECON), Facultad de Medicina, Universidad de Buenos Aires (UBA), C.A.B.A., Buenos Aires, Argentina
- Departamento Ciencias Fisiológicas UAII, Facultad de Medicina, UBA, C.A.B.A., Buenos Aires, Argentina
- Hospital Interzonal General de Agudos Eva Perón, San Martín, Buenos Aires, Argentina
| | - Dolores Buiza-Rueda
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, Erasmus MC, Rotterdam, the Netherlands
| | - Katharina Bûrger
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig Maximilians Universität (LMU), Munich, Germany
- German Center for Neurodegenerative Diseases (DZNE, Munich), Munich, Germany
| | - Vanessa Burholt
- Faculty of Medical & Health Sciences, University of Auckland, Auckland, New Zealand
- Wales Centre for Ageing & Dementia Research, Swansea University, Wales, New Zealand
| | - William S Bush
- Department of Population & Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Miguel Calero
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIEN Foundation/Queen Sofia Foundation Alzheimer Center, Madrid, Spain
- UFIEC, Instituto de Salud Carlos III, Madrid, Spain
| | - Laura B Cantwell
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Geneviève Chene
- INSERM, Bordeaux Population Health Research Center, UMR 1219, ISPED, CIC 1401-EC, Université de Bordeaux, Bordeaux, France
- Pole Santé Publique, CHU de Bordeaux, Bordeaux, France
| | - Jaeyoon Chung
- Medicine Biomedical Genetics Boston University School of Medicine, Boston, MA, USA
| | - Michael L Cuccaro
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami, Miami, FL, USA
| | - Ángel Carracedo
- Grupo de Medicina Xenómica, Centro Nacional de Genotipado (CEGEN-PRB3-ISCIII), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Fundación Pública Galega de Medicina Xenómica- CIBERER-IDIS, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Roberta Cecchetti
- Institute of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Laura Cervera-Carles
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, II B Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Camille Charbonnier
- Department of Genetics and CNR-MAJ, Normandie University, UNIROUEN, INSERM U1245, CHU Rouen, Rouen, France
| | - Hung-Hsin Chen
- Division of Genetic Medicine, Vanderbilt University, Nashville, TN, USA
| | - Caterina Chillotti
- Unit of Clinical Pharmacology, University Hospital of Cagliari, Cagliari, Italy
| | - Simona Ciccone
- Geriatic Unit, Fondazione Cà Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | - Jurgen A H R Claassen
- Radboudumc Alzheimer Center, Department of Geriatrics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Christopher Clark
- Institute for Regenerative Medicine, University of Zürich, Schlieren, Switzerland
| | - Elisa Conti
- School of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
| | - Anaïs Corma-Gómez
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
| | - Emanuele Costantini
- Department of Neuroscience, Catholic University of Sacred Heart, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | | | - Delphine Daian
- CEA, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Maria Carolina Dalmasso
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University of Cologne, Medical Faculty, Cologne, Germany
| | - Antonio Daniele
- Department of Neuroscience, Catholic University of Sacred Heart, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | | | | | - Peter Paul de Deyn
- Department of Neurology, University Medical Center Groningen, Groningen, the Netherlands
| | - Katia de Paiva Lopes
- Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences & Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lot D de Witte
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Stéphanie Debette
- Bordeaux Population Health Research Center, University Bordeaux, INSERM, Bordeaux, France
| | - Jürgen Deckert
- Department of Psychiatry, Psychosomatics and Psychotherapy, Center of Mental Health, University Hospital, Wuerzburg, Germany
| | - Teodoro Del Ser
- CIEN Foundation/Queen Sofia Foundation Alzheimer Center, Madrid, Spain
| | - Nicola Denning
- UKDRI@ Cardiff, School of Medicine, Cardiff University, Cardiff, UK
| | - Anita DeStefano
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
| | - Martin Dichgans
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig Maximilians Universität (LMU), Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Janine Diehl-Schmid
- Klinikum rechts der Isar, Department of Psychiatry and Psychotherapy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Mónica Diez-Fairen
- Fundació Docència i Recerca MútuaTerrassa and Movement Disorders Unit, Department of Neurology, University Hospital MútuaTerrassa, Terrassa, Spain
- Memory Disorders Unit, Department of Neurology, Hospital Universitari Mutua de Terrassa, Terrassa, Spain
| | - Paolo Dionigi Rossi
- Geriatic Unit, Fondazione Cà Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Emmanuelle Duron
- EA 4468, Université de Paris, APHP, Hôpital Broca, Paris, France
| | - Emrah Düzel
- Institute of Cognitive Neurology and Dementia Research (IKND), Otto-Von-Guericke University, Magdeburg, Germany
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
| | - Carole Dufouil
- INSERM, Bordeaux Population Health Research Center, UMR 1219, ISPED, CIC 1401-EC, Université de Bordeaux, Bordeaux, France
- Pole Santé Publique, CHU de Bordeaux, Bordeaux, France
| | | | - Sebastiaan Engelborghs
- Center for Neurosciences, Vrije Universiteit Brussel (VUB), Brussels, Belgium
- Reference Center for Biological Markers of Dementia (BIODEM), Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
- Institute Born-Bunge, University of Antwerp, Antwerp, Belgium
- Department of Neurology, UZ Brussel, Brussels, Belgium
| | - Valentina Escott-Price
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- UKDRI@ Cardiff, School of Medicine, Cardiff University, Cardiff, UK
| | - Ana Espinosa
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Michael Ewers
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig Maximilians Universität (LMU), Munich, Germany
- German Center for Neurodegenerative Diseases (DZNE, Munich), Munich, Germany
| | - Kelley M Faber
- Department of Medical and Molecular Genetics, Indiana University, Indianapolis, IN, USA
| | | | | | - David W Fardo
- Sanders-Brown Center on Aging, Department of Biostatistics, University of Kentucky, Lexington, KY, USA
| | - Lucia Farotti
- Centre for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, University of Perugia, Perugia, Italy
| | | | - Marta Fernández-Fuertes
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
| | - Raffaele Ferrari
- Laboratory of Neurogenetics, Department of Internal Medicine, Texas Tech University Health Science Center, Lubbock, TX, USA
- Reta Lila Weston Research Laboratories, Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK
| | | | - Evelyn Ferri
- Geriatic Unit, Fondazione Cà Granda, IRCCS Ospedale Maggiore Policlinico, Milan, Italy
| | - Bertrand Fin
- CEA, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Peter Fischer
- Department of Psychiatry, Social Medicine Center East- Donauspital, Vienna, Austria
| | - Tormod Fladby
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Klaus Fließbach
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University of Cologne, Medical Faculty, Cologne, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
| | - Bernard Fongang
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, TX, USA
| | - Myriam Fornage
- Department of Neuromedicine and Movement Science, Norwegian University of Science and Technology, Trondheim, Norway
- School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Juan Fortea
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, II B Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Tatiana M Foroud
- Department of Medical and Molecular Genetics, Indiana University, Indianapolis, IN, USA
| | - Silvia Fostinelli
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Nick C Fox
- Dementia Research Centre, UCL Queen Square Institute of Neurology, London, UK
| | - Emlio Franco-Macías
- Unidad de Demencias, Servicio de Neurología y Neurofisiología. Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - María J Bullido
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Instituto de Investigacion Sanitaria 'Hospital la Paz' (IdIPaz), Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (UAM-CSIC), Madrid, Spain
| | - Ana Frank-García
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Instituto de Investigacion Sanitaria 'Hospital la Paz' (IdIPaz), Madrid, Spain
- Hospital Universitario la Paz, Madrid, Spain
| | - Lutz Froelich
- Department of Geriatric Psychiatry, Central Institute for Mental Health, Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Brian Fulton-Howard
- Department of Genetics and Genomic Sciences, Ronald M. Loeb Center for Alzheimer's Disease Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Daniela Galimberti
- Fondazione IRCCS Ca'Granda, Ospedale Policlinico, Milan, Italy
- University of Milan, Milan, Italy
| | - Jose Maria García-Alberca
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Alzheimer Research Center & Memory Clinic, Andalusian Institute for Neuroscience, Málaga, Spain
| | - Pablo García-González
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | | | | | - Roberta Ghidoni
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Ina Giegling
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Giaccone Giorgio
- Fondazione IRCCS, Istituto Neurologico Carlo Besta, Milan, Italy
| | - Alison M Goate
- Department of Genetics and Genomic Sciences, Ronald M. Loeb Center for Alzheimer's Disease Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Oliver Goldhardt
- Klinikum rechts der Isar, Department of Psychiatry and Psychotherapy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Duber Gomez-Fonseca
- Department of Biostatistics, Epidemiology, and Informatics Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Caroline Graff
- Center for Alzheimer Research, Department NVS, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden
- Unit for Hereditary Dementias, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Giulia Grande
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Emma Green
- Institute of Public Health, University of Cambridge, Cambridge, UK
| | - Timo Grimmer
- Klinikum rechts der Isar, Department of Psychiatry and Psychotherapy, Technical University of Munich, School of Medicine, Munich, Germany
| | - Edna Grünblatt
- Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, Zurich, Switzerland
- Neuroscience Center Zurich, University of Zurich and ETH Zurich, Zurich, Switzerland
- Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Michelle Grunin
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Vilmundur Gudnason
- Icelandic Heart Association, Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Tamar Guetta-Baranes
- Human Genetics, School of Life Sciences, Life Sciences Building, University Park, University of Nottingham, Nottingham, UK
| | - Annakaisa Haapasalo
- AI Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | | | - Jonathan L Haines
- Department of Population & Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | | | - Harald Hampel
- GRC 21, Alzheimer Precision Medicine Initiative (APMI), Sorbonne University, AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Olivier Hanon
- EA 4468, Université de Paris, APHP, Hôpital Broca, Paris, France
| | - John Hardy
- Reta Lila Weston Research Laboratories, Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK
| | - Annette M Hartmann
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Lucrezia Hausner
- Department of Geriatric Psychiatry, Central Institute for Mental Health, Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Janet Harwood
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
| | - Stefanie Heilmann-Heimbach
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Seppo Helisalmi
- Institute of Clinical Medicine, Neurology, University of Eastern, Kuopio, Finland
- Institute of Clinical Medicine, Internal Medicine, University of Eastern Finland, Kuopio, Finland
| | - Michael T Heneka
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
| | - Isabel Hernández
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Martin J Herrmann
- Department of Psychiatry, Psychosomatics and Psychotherapy, Center of Mental Health, University Hospital, Wuerzburg, Germany
| | - Per Hoffmann
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Clive Holmes
- Clinical and Experimental Science, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Henne Holstege
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Section Genomics of Neurodegenerative Diseases and Aging, Department of Human Genetics Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Raquel Huerto Vilas
- Unitat Trastorns Cognitius, Hospital Universitari Santa Maria de Lleida, Lleida, Spain
- Institut de Recerca Biomedica de Lleida (IRBLLeida), Lleida, Spain
| | - Marc Hulsman
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Section Genomics of Neurodegenerative Diseases and Aging, Department of Human Genetics Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Jack Humphrey
- Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences & Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Nash Family Department of Neuroscience & Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Geert Jan Biessels
- Department of Neurology, UMC Utrecht Brain Center, Utrecht, the Netherlands
| | - Xueqiu Jian
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, TX, USA
| | - Charlotte Johansson
- Center for Alzheimer Research, Department NVS, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden
| | - Gyungah R Jun
- Medicine Biomedical Genetics Boston University School of Medicine, Boston, MA, USA
| | - Yuriko Kastumata
- Biostatistics, University of Kentucky College of Public Health, Lexington, KY, USA
| | - John Kauwe
- Department of Biology, Brigham Young University, Provo, UT, USA
| | - Patrick G Kehoe
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Lena Kilander
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Anne Kinhult Ståhlbom
- Center for Alzheimer Research, Department NVS, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden
| | - Miia Kivipelto
- Division of Clinical Geriatrics, Center for Alzheimer Research, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
- Neuroepidemiology and Ageing Research Unit, School of Public Health, Imperial College London, London, UK
- Research & Development, UnitStockholms Sjukhem, Stockholm, Sweden
| | - Anne Koivisto
- Institute of Clinical Medicine, Neurology, University of Eastern, Kuopio, Finland
- Department of Neurology, Kuopio University Hospital, Kuopio, Finland
- Department of Neurosciences, University of Helsinki and Department of Geriatrics, Helsinki University Hospital, Helsinki, Finland
| | - Johannes Kornhuber
- Department of Psychiatry and Psychotherapy, Universitätsklinikum Erlangen, and Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Mary H Kosmidis
- Laboratory of Cognitive Neuroscience, School of Psychology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Walter A Kukull
- Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - Pavel P Kuksa
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Brian W Kunkle
- Department of Neurology, Medical School, University of Cyprus, Nicosia, Cyprus
| | - Amanda B Kuzma
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Carmen Lage
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Neurology Service, Marqués de Valdecilla University Hospital (University of Cantabria and IDIVAL), Santander, Spain
| | - Erika J Laukka
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden
- Stockholm Gerontology Research Center, Stockholm, Sweden
| | - Lenore Launer
- Laboratory of Epidemiology, Demography, and Biometry, National Institute of Aging, The National Institutes of Health, Bethesda, MD, USA
- Intramural Research Program/National Institute on Aging/National Institutes of Health, Bethesda, MD, USA
| | - Alessandra Lauria
- Geriatrics Unit, Fondazione Policlinico A. Gemelli IRCCS, Rome, Italy
| | - Chien-Yueh Lee
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Jenni Lehtisalo
- Institute of Clinical Medicine, Neurology, University of Eastern, Kuopio, Finland
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Ondrej Lerch
- Memory Clinic, Department of Neurology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Praha, Czechia
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czechia
| | - Alberto Lleó
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, II B Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - William Longstreth
- Departments of Neurology and Epidemiology, University of Washington, Seattle, WA, USA
| | | | - Adolfo Lopez de Munain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, Hospital Universitario Donostia, OSAKIDETZA-Servicio Vasco de Salud, San Sebastian, Spain
| | - Seth Love
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Malin Löwemark
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Lauren Luckcuck
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
| | - Kathryn L Lunetta
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Yiyi Ma
- Section Genomics of Neurodegenerative Diseases and Aging, Department of Human Genetics Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Department of Neurology, Columbia University, New York, NY, USA
| | - Juan Macías
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
| | | | - Wolfgang Maier
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
| | - Francesca Mangialasche
- Division of Clinical Geriatrics, Center for Alzheimer Research, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Marco Spallazzi
- Unit of Neurology, University of Parma and AOU, Parma, Italy
| | - Marta Marquié
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Rachel Marshall
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
| | - Eden R Martin
- The John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA
| | - Angel Martín Montes
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Instituto de Investigacion Sanitaria 'Hospital la Paz' (IdIPaz), Madrid, Spain
- Hospital Universitario la Paz, Madrid, Spain
| | - Carmen Martínez Rodríguez
- Servicio de Neurología, Hospital Universitario Central de Asturias- Oviedo and Instituto de Investigación Biosanitaria del Principado de Asturias, Oviedo, Spain
| | - Carlo Masullo
- Institute of Neurology, Catholic University of the Sacred Heart, Rome, Italy
| | - Richard Mayeux
- Taub Institute on Alzheimer's Disease and the Aging Brain, Department of Neurology, Columbia University, New York, NY, USA
- Gertrude H. Sergievsky Center, Columbia University, New York, NY, USA
| | - Simon Mead
- MRC Prion Unit at UCL, UCL Institute of Prion Diseases, London, UK
| | - Patrizia Mecocci
- Institute of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Miguel Medina
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- CIEN Foundation/Queen Sofia Foundation Alzheimer Center, Madrid, Spain
| | - Alun Meggy
- UKDRI@ Cardiff, School of Medicine, Cardiff University, Cardiff, UK
| | - Shima Mehrabian
- Clinic of Neurology, UH 'Alexandrovska', Medical University - Sofia, Sofia, Bulgaria
| | - Silvia Mendoza
- Alzheimer Research Center & Memory Clinic, Andalusian Institute for Neuroscience, Málaga, Spain
| | - Manuel Menéndez-González
- Servicio de Neurología, Hospital Universitario Central de Asturias- Oviedo and Instituto de Investigación Biosanitaria del Principado de Asturias, Oviedo, Spain
| | - Pablo Mir
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología. Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Susanne Moebus
- Institute for Urban Public Health, University Hospital of University Duisburg-Essen, Essen, Germany
| | - Merel Mol
- Department of Neurology, Erasmus MC, Rotterdam, the Netherlands
| | - Laura Molina-Porcel
- Neurological Tissue Bank of the Biobanc-Hospital Clinic-IDIBAPS, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
- Alzheimer's Disease and Other Cognitive Disorders Unit, Neurology Department, Hospital Clinic, Barcelona, Spain
| | - Laura Montrreal
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Laura Morelli
- Laboratory of Brain Aging and Neurodegeneration, FIL-CONICET, Buenos Aires, Argentina
| | - Fermin Moreno
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, Hospital Universitario Donostia, OSAKIDETZA-Servicio Vasco de Salud, San Sebastian, Spain
| | - Kevin Morgan
- Human Genetics, School of Life Sciences, University of Nottingham, Nottingham, UK
| | - Thomas Mosley
- Memory Impairment and Neurodegenerative Dementia (MIND) Center, University of Mississippi Medical Center, Jackson, MS, USA
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, School of Medicine & University Hospital Bonn, Bonn, Germany
| | - Carolina Muchnik
- Centro de Neuropsiquiatría y Neurología de la Conducta (CENECON), Facultad de Medicina, Universidad de Buenos Aires (UBA), C.A.B.A., Buenos Aires, Argentina
- Laboratorio de Bioquímica Molecular, Facultad de Medicina, Instituto de Investigaciones Médicas A. Lanari, UBA, C.A.B.A, Buenos Aires, Argentina
| | | | - Benedetta Nacmias
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
- IRCCS Fondazione Don Carlo Gnocchi, Florence, Italy
| | - Tiia Ngandu
- Public Health Promotion Unit, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Gael Nicolas
- Department of Genetics and CNR-MAJ, Normandie University, UNIROUEN, INSERM U1245, CHU Rouen, Rouen, France
| | - Børge G Nordestgaard
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Herlev, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Robert Olaso
- CEA, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Adelina Orellana
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Michela Orsini
- Department of Neuroscience, Catholic University of Sacred Heart, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Gemma Ortega
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Alessandro Padovani
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX, USA
| | | | - Goran Papenberg
- Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden
| | - Lucilla Parnetti
- Centre for Memory Disturbances, Lab of Clinical Neurochemistry, Section of Neurology, University of Perugia, Perugia, Italy
| | - Florence Pasquier
- Resources and Research Memory Center (MRRC) of Distalz, LicendUniversity of Lille, INSERM, CHU Lille, UMR1172, Lille, France
| | - Pau Pastor
- Fundació Docència i Recerca MútuaTerrassa and Movement Disorders Unit, Department of Neurology, University Hospital MútuaTerrassa, Terrassa, Spain
- Memory Disorders Unit, Department of Neurology, Hospital Universitari Mutua de Terrassa, Terrassa, Spain
| | - Gina Peloso
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Boston University and the NHLBI's Framingham Heart Study, Boston, MA, USA
| | - Alba Pérez-Cordón
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Jordi Pérez-Tur
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Institut de Biomedicina de València-CSIC CIBERNED, València, Spain
- Unitat Mixta de de Neurología y Genética, Institut d'Investigació Sanitària La Fe, València, Spain
| | - Pierre Pericard
- US 41-UMS 2014-PLBS, bilille, Université de Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, Lille, France
| | - Oliver Peters
- Institute of Psychiatry and Psychotherapy, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität Zu Berlin, and Berlin Institute of Health, Berlin, Germany
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
| | - Yolande A L Pijnenburg
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Juan A Pineda
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
| | - Gerard Piñol-Ripoll
- Unitat Trastorns Cognitius, Hospital Universitari Santa Maria de Lleida, Lleida, Spain
- Institut de Recerca Biomedica de Lleida (IRBLLeida), Lleida, Spain
| | - Claudia Pisanu
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Thomas Polak
- Department of Psychiatry, Psychosomatics and Psychotherapy, Center of Mental Health, University Hospital, Wuerzburg, Germany
| | - Julius Popp
- CHUV, Old Age Psychiatry, Department of Psychiatry, Lausanne, Switzerland
- Old Age Psychiatry, Department of Psychiatry, Lausanne University Hospital, Lausanne, Switzerland
- Department of Geriatric Psychiatry, University Hospital of Psychiatry Zürich, Zürich, Switzerland
| | - Danielle Posthuma
- Department of Complex Trait Genetics, Center for Neurogenomics and Cognitive Research, Amsterdam Neuroscience, Vrije University, Amsterdam, the Netherlands
| | - Josef Priller
- German Center for Neurodegenerative Diseases (DZNE), Berlin, Germany
- Department of Neuropsychiatry and Laboratory of Molecular Psychiatry, Charité, Charitéplatz 1, Berlin, Germany
| | - Raquel Puerta
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Olivier Quenez
- Department of Genetics and CNR-MAJ, Normandie University, UNIROUEN, INSERM U1245, CHU Rouen, Rouen, France
| | - Inés Quintela
- Grupo de Medicina Xenómica, Centro Nacional de Genotipado (CEGEN-PRB3-ISCIII), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | | | - Alberto Rábano
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- CIEN Foundation/Queen Sofia Foundation Alzheimer Center, Madrid, Spain
| | - Innocenzo Rainero
- Centre for Neurodegenerative Disorders, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Farid Rajabli
- The John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA
| | - Inez Ramakers
- Department of Psychiatry & Neuropsychologie, Maastricht University, Alzheimer Center Limburg, Maastricht, the Netherlands
| | - Luis M Real
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario de Valme, Sevilla, Spain
- Depatamento de Especialidades Quirúrgicas Bioquímica e Inmunología, Facultad de Medicina, Universidad de Málaga, Málaga, Spain
| | - Marcel J T Reinders
- Delft Bioinformatics Lab, Delft University of Technology, Delft, the Netherlands
| | - Christiane Reitz
- Gertrude H. Sergievsky Center, Columbia University, New York, NY, USA
- Delft Bioinformatics Lab, Delft University of Technology, Delft, the Netherlands
- Taub Institute, Columbia University, New York, NY, USA
| | - Dolly Reyes-Dumeyer
- Department of Neurology, Columbia University, New York, NY, USA
- Taub Institute, Columbia University, New York, NY, USA
| | - Perry Ridge
- Bioinformatics, College of Life Sciences, Brigham Young University, Provo, UT, USA
| | - Steffi Riedel-Heller
- Institute of Social Medicine, Occupational Health and Public Health, University of Leipzig, Leipzig, Germany
| | - Peter Riederer
- Center of Mental Health, Clinic and Policlinic of Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Würzburg, Wuerzburg, Germany
| | - Natalia Roberto
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Eloy Rodriguez-Rodriguez
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Neurology Service, Marqués de Valdecilla University Hospital (University of Cantabria and IDIVAL), Santander, Spain
| | - Arvid Rongve
- Department of Research and Innovation, Helse Fonna, Haugesund Hospital, Haugesund, Norway
- Institute of Clinical Medicine (K1), The University of Bergen, Bergen, Norway
| | - Irene Rosas Allende
- Laboratorio de Genética, Hospital Universitario Central de Asturias, Oviedo, Spain
- Servicio de Neurología, Hospital Universitario Central de Asturias- Oviedo and Instituto de Investigación Biosanitaria del Principado de Asturias, Oviedo, Spain
| | - Maitée Rosende-Roca
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Jose Luis Royo
- Departamento de Especialidades Quirúrgicas, Bioquímicas e Inmunología, School of Medicine, University of Málaga, Málaga, Spain
| | - Elisa Rubino
- Department of Neuroscience and Mental Health, AOU Città della Salute e della Scienza di Torino, Torino, Italy
| | - Dan Rujescu
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | | | - Paraskevi Sakka
- Athens Association of Alzheimer's Disease and Related Disorders, Athens, Greece
| | - Ingvild Saltvedt
- Department of Neurology and Clinical Neurophysiology, University Hospital of Trondheim, Trondheim, Norway
- Department of Geriatrics, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Ángela Sanabria
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - María Bernal Sánchez-Arjona
- Unidad de Demencias, Servicio de Neurología y Neurofisiología. Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Florentino Sanchez-Garcia
- Department of Immunology, Hospital Universitario Doctor Negrín, Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Pascual Sánchez Juan
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Neurology Service, Marqués de Valdecilla University Hospital (University of Cantabria and IDIVAL), Santander, Spain
| | - Raquel Sánchez-Valle
- Neurology Department-Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - Sigrid B Sando
- Experimental Neuro-psychobiology Laboratory, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
- Department of Neurology and Clinical Neurophysiology, University Hospital of Trondheim, Trondheim, Norway
| | - Chloé Sarnowski
- Human Genetics Center, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Claudia L Satizabal
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, TX, USA
| | - Michela Scamosci
- Institute of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Nikolaos Scarmeas
- Taub Institute on Alzheimer's Disease and the Aging Brain, Department of Neurology, Columbia University, New York, NY, USA
- First Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Elio Scarpini
- Fondazione IRCCS Ca'Granda, Ospedale Policlinico, Milan, Italy
- University of Milan, Milan, Italy
| | - Philip Scheltens
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Norbert Scherbaum
- LVR-Hospital Essen, Department of Psychiatry and Psychotherapy, Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Martin Scherer
- Department of Primary Medical Care, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Matthias Schmid
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
- Institute of Medical Biometry, Informatics and Epidemiology, University Hospital of Bonn, Bonn, Germany
| | - Anja Schneider
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
| | - Jonathan M Schott
- Dementia Research Centre, UCL Queen Square Institute of Neurology, London, UK
| | - Geir Selbæk
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway
| | - Davide Seripa
- Laboratory for Advanced Hematological Diagnostics, Department of Hematology and Stem Cell Transplant, Vito Fazzi Hospital, Lecce, Italy
| | - Manuel Serrano
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas, CIBERDEM, Hospital Clínico San Carlos, Madrid, Spain
| | - Jin Sha
- Department of Biostatistics, Epidemiology, and Informatics, Penn Neurodegeneration Genomics Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | | | - Olivia Skrobot
- Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Susan Slifer
- The John P. Hussman Institute for Human Genomics, University of Miami, Miami, FL, USA
| | - Gijsje J L Snijders
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hilkka Soininen
- Institute of Clinical Medicine, Neurology, University of Eastern, Kuopio, Finland
| | | | - Alina Solomon
- Institute of Clinical Medicine, Neurology, University of Eastern, Kuopio, Finland
- Division of Clinical Geriatrics, Center for Alzheimer Research, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Yeunjoo Song
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Sandro Sorbi
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, Florence, Italy
- IRCCS Fondazione Don Carlo Gnocchi, Florence, Italy
| | - Oscar Sotolongo-Grau
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Gianfranco Spalletta
- Laboratory of Neuropsychiatry, Department of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy
| | - Annika Spottke
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
- Department of Neurology, University of Bonn, Bonn, Germany
| | - Alessio Squassina
- Department of Biomedical Sciences, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Cagliari, Italy
| | | | - Juan Pablo Tartan
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Lluís Tárraga
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Niccolo Tesí
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
- Section Genomics of Neurodegenerative Diseases and Aging, Department of Human Genetics Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Anbupalam Thalamuthu
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Tegos Thomas
- First Department of Neurology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Alzheimer Hellas, Thessaloniki, Greece
| | - Giuseppe Tosto
- Taub Institute on Alzheimer's Disease and the Aging Brain, Department of Neurology, Columbia University, New York, NY, USA
- Department of Neurology, Columbia University, New York, NY, USA
| | - Latchezar Traykov
- Clinic of Neurology, UH 'Alexandrovska', Medical University - Sofia, Sofia, Bulgaria
| | - Lucio Tremolizzo
- School of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
- Neurology Unit, San Gerardo Hospital, Monza, Italy
| | - Anne Tybjærg-Hansen
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
| | - Andre Uitterlinden
- Department of Internal Medicine and Biostatistics, Erasmus MC, Rotterdam, the Netherlands
| | - Abbe Ullgren
- Center for Alzheimer Research, Department NVS, Division of Neurogeriatrics, Karolinska Institutet, Stockholm, Sweden
| | - Ingun Ulstein
- Department of Geriatric Medicine, Oslo University Hospital, Oslo, Norway
| | - Sergi Valero
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Otto Valladares
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Christine Van Broeckhoven
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
- Laboratory of Neurogenetics, Institute Born - Bunge, Antwerp, Belgium
- Neurodegenerative Brain Diseases Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
| | - Jeffery Vance
- Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami, Miami, FL, USA
| | - Badri N Vardarajan
- Taub Institute on Alzheimer's Disease and the Aging Brain, Department of Neurology, Columbia University, New York, NY, USA
| | | | - Jasper Van Dongen
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
- Laboratory of Neurogenetics, Institute Born - Bunge, Antwerp, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Jeroen van Rooij
- Department of Neurology, Erasmus MC, Rotterdam, the Netherlands
- Department of Neurology, ErasmusMC, Rotterdam, the Netherlands
| | | | - Rik Vandenberghe
- Laboratory for Cognitive Neurology, Department of Neurosciences, University of Leuven, Leuven, Belgium
- Neurology Department, University Hospitals Leuven, Leuven, Belgium
| | - Frans Verhey
- Department of Psychiatry & Neuropsychologie, Maastricht University, Alzheimer Center Limburg, Maastricht, the Netherlands
| | | | - Jonathan Vogelgsang
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, Goettingen, Germany
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, USA
| | - Martin Vyhnalek
- Memory Clinic, Department of Neurology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Praha, Czechia
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czechia
| | - Michael Wagner
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
| | - David Wallon
- Department of Neurology and CNR-MAJ, F 76000, Normandy Center for Genomic and Personalized Medicine, Normandie University, UNIROUEN, INSERM U1245, CHU Rouen, Rouen, France
| | - Li-San Wang
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Ruiqi Wang
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Leonie Weinhold
- Institute of Medical Biometry, Informatics and Epidemiology, University Hospital of Bonn, Bonn, Germany
| | - Jens Wiltfang
- Department of Psychiatry and Psychotherapy, University Medical Center Goettingen, Goettingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany
- Medical Science Department, iBiMED, Aveiro, Portugal
| | - Gill Windle
- School of Health Sciences, Bangor University, Bangor, UK
| | - Bob Woods
- School of Health Sciences, Bangor University, Bangor, UK
| | - Mary Yannakoulia
- Department of Nutrition and Diatetics, Harokopio University, Athens, Greece
| | - Habil Zare
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, TX, USA
| | - Yi Zhao
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Xiaoling Zhang
- Department of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA
| | - Congcong Zhu
- Department of Medicine (Biomedical Genetics), Boston University School of Medicine, Boston, MA, USA
| | - Miren Zulaica
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Neurosciences Area, Instituto Biodonostia, San Sebastian, Spain
| | - Lindsay A Farrer
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Medicine Biomedical Genetics Boston University School of Medicine, Boston, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
| | - Bruce M Psaty
- Framingham Heart Study, Framingham, MA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Health Service, University of Washington, Seattle, WA, USA
| | - Mohsen Ghanbari
- Department of Epidemiology, Erasmus MC, Rotterdam, the Netherlands
| | - Towfique Raj
- Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences & Icahn Institute for Data Science and Genomic Technology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Estelle and Daniel Maggin Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Nash Family Department of Neuroscience & Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Perminder Sachdev
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Karen Mather
- Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Frank Jessen
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus MC, Rotterdam, the Netherlands
| | | | - Jakub Hort
- Intramural Research Program/National Institute on Aging/National Institutes of Health, Bethesda, MD, USA
- Memory Clinic, Department of Neurology, Charles University, 2nd Faculty of Medicine and Motol University Hospital, Praha, Czechia
| | - Magda Tsolaki
- First Department of Neurology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Alzheimer Hellas, Thessaloniki, Greece
| | | | - Philippe Amouyel
- Université de Lille, INSERM, CHU Lille, Institut Pasteur Lille, U1167-RID-AGE, Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France
| | - Julie Williams
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
- UKDRI@ Cardiff, School of Medicine, Cardiff University, Cardiff, UK
| | - Ruth Frikke-Schmidt
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark
| | - Jordi Clarimon
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
- Department of Neurology, II B Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jean-François Deleuze
- CEA, Centre National de Recherche en Génomique Humaine, Université Paris-Saclay, Evry, France
| | - Giacomina Rossi
- Fondazione IRCCS, Istituto Neurologico Carlo Besta, Milan, Italy
| | - Sudha Seshadri
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- Department of Neurology, Boston University School of Medicine, Boston, MA, USA
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, TX, USA
| | | | - Martin Ingelsson
- Department of Public Health and Carins Sciences/Geriatrics, Uppsala University, Uppsala, Sweden
| | - Mikko Hiltunen
- Brain Institute, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Kristel Sleegers
- Complex Genetics of Alzheimer's Disease Group, VIB Center for Molecular Neurology, VIB, Antwerp, Belgium
- Laboratory of Neurogenetics, Institute Born - Bunge, Antwerp, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Gerard D Schellenberg
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Cornelia M van Duijn
- Department of Epidemiology, Erasmus MC, Rotterdam, the Netherlands
- Nuffield Department of Population Health, Oxford University, Oxford, UK
| | - Rebecca Sims
- MRC Centre for Neuropsychiatric Genetics and Genomics, Division of Psychological Medicine and Clinical Neuroscience, School of Medicine, Cardiff University, Cardiff, UK
| | - Wiesje M van der Flier
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, the Netherlands
| | - Agustín Ruiz
- Research Center and Memory Clinic Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- CIBERNED, Network Center for Biomedical Research in Neurodegenerative Diseases, National Institute of Health Carlos III, Madrid, Spain
| | - Alfredo Ramirez
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University Hospital Bonn, Bonn, Germany
- Division of Neurogenetics and Molecular Psychiatry, Department of Psychiatry and Psychotherapy, University of Cologne, Medical Faculty, Cologne, Germany
- German Center for Neurodegenerative Diseases (DZNE Bonn), Bonn, Germany
- Glenn Biggs Institute for Alzheimer's & Neurodegenerative Diseases, University of Texas Health Sciences Center, San Antonio, TX, USA
- Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Jean-Charles Lambert
- Université de Lille, INSERM, CHU Lille, Institut Pasteur Lille, U1167-RID-AGE, Facteurs de risque et déterminants moléculaires des maladies liées au vieillissement, Lille, France.
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Sirtuin-1 sensitive lysine-136 acetylation drives phase separation and pathological aggregation of TDP-43. Nat Commun 2022; 13:1223. [PMID: 35264561 PMCID: PMC8907366 DOI: 10.1038/s41467-022-28822-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 01/11/2022] [Indexed: 12/12/2022] Open
Abstract
Trans-activation response DNA-binding protein of 43 kDa (TDP-43) regulates RNA processing and forms neuropathological aggregates in patients with amyotrophic lateral sclerosis and frontotemporal lobar degeneration. Investigating TDP-43 post-translational modifications, we discovered that K84 acetylation reduced nuclear import whereas K136 acetylation impaired RNA binding and splicing capabilities of TDP-43. Such failure of RNA interaction triggered TDP-43 phase separation mediated by the C-terminal low complexity domain, leading to the formation of insoluble aggregates with pathologically phosphorylated and ubiquitinated TDP-43. Introduction of acetyl-lysine at the identified sites via amber suppression confirmed the results from site-directed mutagenesis. K84-acetylated TDP-43 showed cytoplasmic mislocalization, and the aggregation propensity of K136-acetylated TDP-43 was confirmed. We generated antibodies selective for TDP-43 acetylated at these lysines, and found that sirtuin-1 can potently deacetylate K136-acetylated TDP-43 and reduce its aggregation propensity. Thus, distinct lysine acetylations modulate nuclear import, RNA binding and phase separation of TDP-43, suggesting regulatory mechanisms for TDP-43 pathogenesis.
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Henríquez F, Cabello V, Baez S, de Souza LC, Lillo P, Martínez-Pernía D, Olavarría L, Torralva T, Slachevsky A. Multidimensional Clinical Assessment in Frontotemporal Dementia and Its Spectrum in Latin America and the Caribbean: A Narrative Review and a Glance at Future Challenges. Front Neurol 2022; 12:768591. [PMID: 35250791 PMCID: PMC8890568 DOI: 10.3389/fneur.2021.768591] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/13/2021] [Indexed: 12/14/2022] Open
Abstract
Frontotemporal dementia (FTD) is the third most common form of dementia across all age groups and is a leading cause of early-onset dementia. The Frontotemporal dementia (FTD) includes a spectrum of diseases that are classified according to their clinical presentation and patterns of neurodegeneration. There are two main types of FTD: behavioral FTD variant (bvFTD), characterized by a deterioration in social function, behavior, and personality; and primary progressive aphasias (PPA), characterized by a deficit in language skills. There are other types of FTD-related disorders that present motor impairment and/or parkinsonism, including FTD with motor neuron disease (FTD-MND), progressive supranuclear palsy (PSP), and corticobasal syndrome (CBS). The FTD and its associated disorders present great clinical heterogeneity. The diagnosis of FTD is based on the identification through clinical assessments of a specific clinical phenotype of impairments in different domains, complemented by an evaluation through instruments, i.e., tests and questionnaires, validated for the population under study, thus, achieving timely detection and treatment. While the prevalence of dementia in Latin America and the Caribbean (LAC) is increasing rapidly, there is still a lack of standardized instruments and consensus for FTD diagnosis. In this context, it is important to review the published tests and questionnaires adapted and/or validated in LAC for the assessment of cognition, behavior, functionality, and gait in FTD and its spectrum. Therefore, our paper has three main goals. First, to present a narrative review of the main tests and questionnaires published in LAC for the assessment of FTD and its spectrum in six dimensions: (i) Cognitive screening; (ii) Neuropsychological assessment divided by cognitive domain; (iii) Gait assessment; (iv) Behavioral and neuropsychiatric symptoms; (v) Functional assessment; and (vi) Global Rating Scale. Second, to propose a multidimensional clinical assessment of FTD in LAC identifying the main gaps. Lastly, it is proposed to create a LAC consortium that will discuss strategies to address the current challenges in the field.
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Affiliation(s)
- Fernando Henríquez
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Memory and Neuropsychiatric Clinic (CMYN) Neurology Department, Hospital del Salvador and Faculty of Medicine, University of Chile, Santiago, Chile
- Neuropsychology and Clinical Neuroscience Laboratory (LANNEC), Physiopathology Department – Institute of Biomedical Sciences (ICBM), Neuroscience and East Neuroscience Departments, Faculty of Medicine, University of Chile, Santiago, Chile
- Laboratory for Cognitive and Evolutionary Neuroscience (LaNCE), Department of Psychiatry, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Victoria Cabello
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Neuropsychology and Clinical Neuroscience Laboratory (LANNEC), Physiopathology Department – Institute of Biomedical Sciences (ICBM), Neuroscience and East Neuroscience Departments, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Sandra Baez
- Universidad de los Andes, Departamento de Psicología, Bogotá, Colombia
| | - Leonardo Cruz de Souza
- Programa de Pós-Graduação em Neurociências da Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
- Departamento de Clínica Médica, Faculdade de Medicina da Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Patricia Lillo
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Departamento de Neurología Sur, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Unidad de Neurología, Hospital San José, Santiago, Chile
| | - David Martínez-Pernía
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Memory and Neuropsychiatric Clinic (CMYN) Neurology Department, Hospital del Salvador and Faculty of Medicine, University of Chile, Santiago, Chile
- Center for Social and Cognitive Neuroscience (CSCN), School of Psychology, Universidad Adolfo Ibáñez, Santiago, Chile
| | - Loreto Olavarría
- Memory and Neuropsychiatric Clinic (CMYN) Neurology Department, Hospital del Salvador and Faculty of Medicine, University of Chile, Santiago, Chile
- Neuropsychology and Clinical Neuroscience Laboratory (LANNEC), Physiopathology Department – Institute of Biomedical Sciences (ICBM), Neuroscience and East Neuroscience Departments, Faculty of Medicine, University of Chile, Santiago, Chile
| | - Teresa Torralva
- Institute of Cognitive and Translational Neuroscience (INCYT), Instituto de Neurología Cognitiva Foundation, Favaloro University, Buenos Aires, Argentina
| | - Andrea Slachevsky
- Geroscience Center for Brain Health and Metabolism (GERO), Santiago, Chile
- Memory and Neuropsychiatric Clinic (CMYN) Neurology Department, Hospital del Salvador and Faculty of Medicine, University of Chile, Santiago, Chile
- Neuropsychology and Clinical Neuroscience Laboratory (LANNEC), Physiopathology Department – Institute of Biomedical Sciences (ICBM), Neuroscience and East Neuroscience Departments, Faculty of Medicine, University of Chile, Santiago, Chile
- Department of Neurology and Psychiatry, Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
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Nguyen QTR, Ortigoza Escobar JD, Burgunder JM, Mariotti C, Saft C, Hjermind LE, Youssov K, Landwehrmeyer GB, Bachoud-Lévi AC. Combining Literature Review With a Ground Truth Approach for Diagnosing Huntington's Disease Phenocopy. Front Neurol 2022; 13:817753. [PMID: 35222250 PMCID: PMC8866848 DOI: 10.3389/fneur.2022.817753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/17/2022] [Indexed: 11/13/2022] Open
Abstract
One percent of patients with a Huntington's disease (HD) phenotype do not have the Huntington (HTT) gene mutation. These are known as HD phenocopies. Their diagnosis is still a challenge. Our objective is to provide a diagnostic approach to HD phenocopies based on medical expertise and a review of the literature. We employed two complementary approaches sequentially: a review of the literature and two surveys analyzing the daily clinical practice of physicians who are experts in movement disorders. The review of the literature was conducted from 1993 to 2020, by extracting articles about chorea or HD-like disorders from the database Pubmed, yielding 51 articles, and analyzing 20 articles in depth to establish the surveys. Twenty-eight physicians responded to the first survey exploring the red flags suggestive of specific disease entities. Thirty-three physicians completed the second survey which asked for the classification of paraclinical tests according to their diagnostic significance. The analysis of the results of the second survey used four different clustering algorithms and the density-based clustering algorithm DBSCAN to classify the paraclinical tests into 1st, 2nd, and 3rd-line recommendations. In addition, we included suggestions from members of the European Reference Network-Rare Neurological Diseases (ERN-RND Chorea & Huntington disease group). Finally, we propose guidance that integrate the detection of clinical red flags with a classification of paraclinical testing options to improve the diagnosis of HD phenocopies.
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Affiliation(s)
- Quang Tuan Rémy Nguyen
- AP-HP, Hôpital Henri Mondor-Albert Chenevier, Centre National de Référence Maladie de Huntington, Service de Neurologie, Créteil, France
- Univ Paris Est Creteil, INSERM U955, Institut Mondor de Recherche Biomédicale, Laboratoire de Neuropsychologie Interventionnelle, Creteil, France
- Département d'Etudes Cognitives, École normale supérieure, PSL University, Paris, France
- *Correspondence: Quang Tuan Rémy Nguyen
| | - Juan Dario Ortigoza Escobar
- Movement Disorders Unit, Institut de Recerca Sant Joan de Déu, CIBERER-ISCIII, Barcelona, Spain
- European Reference Network for Rare Neurological Diseases (ERN-RND), Tübingen, Germany
| | - Jean-Marc Burgunder
- European Reference Network for Rare Neurological Diseases (ERN-RND), Tübingen, Germany
- Siloah and Department of Neurology, Department of Clinical Research, Swiss Huntington's Disease Centre, University of Bern, Bern, Switzerland
| | - Caterina Mariotti
- European Reference Network for Rare Neurological Diseases (ERN-RND), Tübingen, Germany
- Unit of Genetics of Neurodegenerative and Metabolic Diseases, Carlo Besta Neurological Institute IRCCS Foundation, Milan, Italy
| | - Carsten Saft
- European Reference Network for Rare Neurological Diseases (ERN-RND), Tübingen, Germany
- Department of Neurology, Huntington Center North Rhine-Westphalia, Ruhr-University, St. Josef-Hospital, Bochum, Germany
| | - Lena Elisabeth Hjermind
- European Reference Network for Rare Neurological Diseases (ERN-RND), Tübingen, Germany
- Department of Neurology, Rigshospitalet, Danish Dementia Research Centre, Clinic of Neurogenetics, Copenhagen University Hospital, Copenhagen, Denmark
| | - Katia Youssov
- AP-HP, Hôpital Henri Mondor-Albert Chenevier, Centre National de Référence Maladie de Huntington, Service de Neurologie, Créteil, France
- Univ Paris Est Creteil, INSERM U955, Institut Mondor de Recherche Biomédicale, Laboratoire de Neuropsychologie Interventionnelle, Creteil, France
| | - G. Bernhard Landwehrmeyer
- European Reference Network for Rare Neurological Diseases (ERN-RND), Tübingen, Germany
- Department of Neurology, University of Ulm, Ulm, Germany
| | - Anne-Catherine Bachoud-Lévi
- AP-HP, Hôpital Henri Mondor-Albert Chenevier, Centre National de Référence Maladie de Huntington, Service de Neurologie, Créteil, France
- Département d'Etudes Cognitives, École normale supérieure, PSL University, Paris, France
- European Reference Network for Rare Neurological Diseases (ERN-RND), Tübingen, Germany
- Anne-Catherine Bachoud-Lévi
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20
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Rare tremors and tremors occurring in other neurological disorders. J Neurol Sci 2022; 435:120200. [DOI: 10.1016/j.jns.2022.120200] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/07/2022] [Accepted: 02/17/2022] [Indexed: 12/21/2022]
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21
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Benussi A, Alberici A, Samra K, Russell LL, Greaves CV, Bocchetta M, Ducharme S, Finger E, Fumagalli G, Galimberti D, Jiskoot LC, Le Ber I, Masellis M, Nacmias B, Rowe JB, Sanchez-Valle R, Seelaar H, Synofzik M, Rohrer JD, Borroni B. Conceptual framework for the definition of preclinical and prodromal frontotemporal dementia. Alzheimers Dement 2021; 18:1408-1423. [PMID: 34874596 DOI: 10.1002/alz.12485] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 08/25/2021] [Accepted: 08/30/2021] [Indexed: 12/13/2022]
Abstract
The presymptomatic stages of frontotemporal dementia (FTD) are still poorly defined and encompass a long accrual of progressive biological (preclinical) and then clinical (prodromal) changes, antedating the onset of dementia. The heterogeneity of clinical presentations and the different neuropathological phenotypes have prevented a prior clear description of either preclinical or prodromal FTD. Recent advances in therapeutic approaches, at least in monogenic disease, demand a proper definition of these predementia stages. It has become clear that a consensus lexicon is needed to comprehensively describe the stages that anticipate dementia. The goal of the present work is to review existing literature on the preclinical and prodromal phases of FTD, providing recommendations to address the unmet questions, therefore laying out a strategy for operationalizing and better characterizing these presymptomatic disease stages.
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Affiliation(s)
- Alberto Benussi
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,Neurology Unit, Department of Neurological and Vision Sciences, ASST Spedali Civili, Brescia, Italy
| | - Antonella Alberici
- Neurology Unit, Department of Neurological and Vision Sciences, ASST Spedali Civili, Brescia, Italy
| | - Kiran Samra
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Lucy L Russell
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Caroline V Greaves
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Martina Bocchetta
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Simon Ducharme
- Department of Psychiatry, Douglas Mental Health University Institute and Douglas Research Centre, McGill University, Montreal, Québec, Canada.,McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montreal, Québec, Canada
| | - Elizabeth Finger
- Department of Clinical Neurological Sciences, University of Western Ontario, London, Ontario, Canada
| | - Giorgio Fumagalli
- Fondazione Ca' Granda, IRCCS Ospedale Policlinico, Milan, Italy.,University of Milan, Milan, Italy
| | - Daniela Galimberti
- Fondazione Ca' Granda, IRCCS Ospedale Policlinico, Milan, Italy.,University of Milan, Milan, Italy
| | - Lize C Jiskoot
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK.,Department of Neurology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Isabelle Le Ber
- Paris Brain Institute - Institut du Cerveau - ICM, Sorbonne Université, Inserm U1127, CNRS UMR, Paris, France.,Centre de référence des démences rares ou précoces, IM2A, Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France.,Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France.,Reference Network for Rare Neurological Diseases (ERN-RND), Paris, France
| | - Mario Masellis
- Sunnybrook Health Sciences Centre, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Benedetta Nacmias
- Department of Neuroscience, Psychology, Drug Research and Child Health, University of Florence, and IRCCS Fondazione Don Carlo Gnocchi, Florence, Italy
| | - James B Rowe
- Department of Clinical Neurosciences, MRC Cognition and Brain Sciences Unit and Cambridge University Hospitals NHS Trust, University of Cambridge, Cambridge, UK
| | - Raquel Sanchez-Valle
- Alzheimer's Disease and Other Cognitive Disorders Unit, Neurology Service, Hospital Clínic, Institut d'Investigacións Biomèdiques August Pi I Sunyer, University of Barcelona, Barcelona, Spain
| | - Harro Seelaar
- Department of Neurology, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - Matthis Synofzik
- Department of Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Tübingen, Germany.,Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | | | - Jonathan D Rohrer
- Dementia Research Centre, Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Barbara Borroni
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy.,Neurology Unit, Department of Neurological and Vision Sciences, ASST Spedali Civili, Brescia, Italy
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22
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Parkin beyond Parkinson’s Disease—A Functional Meaning of Parkin Downregulation in TDP-43 Proteinopathies. Cells 2021; 10:cells10123389. [PMID: 34943897 PMCID: PMC8699658 DOI: 10.3390/cells10123389] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 12/15/2022] Open
Abstract
Parkin and PINK1 are key regulators of mitophagy, an autophagic pathway for selective elimination of dysfunctional mitochondria. To this date, parkin depletion has been associated with recessive early onset Parkinson’s disease (PD) caused by loss-of-function mutations in the PARK2 gene, while, in sporadic PD, the activity and abundance of this protein can be compromised by stress-related modifications. Intriguingly, research in recent years has shown that parkin depletion is not limited to PD but is also observed in other neurodegenerative diseases—especially those characterized by TDP-43 proteinopathies, such as amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD). Here, we discuss the evidence of parkin downregulation in these disease phenotypes, its emerging connections with TDP-43, and its possible functional implications.
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23
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Koros C, Stefanis L, Scarmeas N. Parkinsonism and dementia. J Neurol Sci 2021; 433:120015. [PMID: 34642023 DOI: 10.1016/j.jns.2021.120015] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/01/2021] [Accepted: 09/29/2021] [Indexed: 12/13/2022]
Abstract
The aim of the present review is to summarize literature data on dementia in parkinsonian disorders. Cognitive decline and the gradual development of dementia are considered to be key features in the majority of parkinsonian conditions. The burden of dementia in everyday life of parkinsonian patients and their caregivers is vast and can be even more challenging to handle than the motor component of the disease. Common pathogenetic mechanisms involve the aggregation and spreading of abnormal proteins like alpha-synuclein, tau or amyloid in cortical and subcortical regions with subsequent dysregulation of multiple neurotransmitter systems. The degree of cognitive deterioration in these disorders is variable and ranges from mild cognitive impairment to severe cognitive dysfunction. There is also variation in the number and type of affected cognitive domains which can involve either a single domain like executive or visuospatial function or multiple ones. Novel genetic, biological fluid or imaging biomarkers appear promising in facilitating the diagnosis and staging of dementia in parkinsonian conditions. A significant part of current research in Parkinson's disease and other parkinsonian syndromes is targeted towards the cognitive aspects of these disorders. Stabilization or amelioration of cognitive outcomes represents a primary endpoint in many ongoing clinical trials for novel disease modifying treatments in this field. This article is part of the Special Issue "Parkinsonism across the spectrum of movement disorders and beyond" edited by Joseph Jankovic, Daniel D. Truong and Matteo Bologna.
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Affiliation(s)
- Christos Koros
- 1st Department of Neurology, Aeginition University, Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece
| | - Leonidas Stefanis
- 1st Department of Neurology, Aeginition University, Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece; Center of Clinical Research, Experimental Surgery and Translational Research, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Nikolaos Scarmeas
- 1st Department of Neurology, Aeginition University, Hospital, National and Kapodistrian University of Athens, Medical School, Athens, Greece; The Gertrude H. Sergievsky Center, Department of Neurology, Taub Institute for Research in Alzheimer's, Disease and the Aging Brain, Columbia University, New York, USA.
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24
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Leveille E, Ross OA, Gan-Or Z. Tau and MAPT genetics in tauopathies and synucleinopathies. Parkinsonism Relat Disord 2021; 90:142-154. [PMID: 34593302 DOI: 10.1016/j.parkreldis.2021.09.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/25/2021] [Accepted: 09/09/2021] [Indexed: 10/20/2022]
Abstract
MAPT encodes the microtubule-associated protein tau, which is the main component of neurofibrillary tangles (NFTs) and found in other protein aggregates. These aggregates are among the pathological hallmarks of primary tauopathies such as frontotemporal dementia (FTD). Abnormal tau can also be observed in secondary tauopathies such as Alzheimer's disease (AD) and synucleinopathies such as Parkinson's disease (PD). On top of pathological findings, genetic data also links MAPT to these disorders. MAPT variations are a cause or risk factors for many tauopathies and synucleinopathies and are associated with certain clinical and pathological features in affected individuals. In addition to clinical, pathological, and genetic overlap, evidence also suggests that tau and alpha-synuclein may interact on the molecular level, and thus might collaborate in the neurodegenerative process. Understanding the role of MAPT variations in tauopathies and synucleinopathies is therefore essential to elucidate the role of tau in the pathogenesis and phenotype of those disorders, and ultimately to develop targeted therapies. In this review, we describe the role of MAPT genetic variations in tauopathies and synucleinopathies, several genotype-phenotype and pathological features, and discuss their implications for the classification and treatment of those disorders.
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Affiliation(s)
| | - Owen A Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA; Department of Clinical Genomics, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Ziv Gan-Or
- The Neuro (Montreal Neurological Institute-hospital), McGill University, Montréal, QC, Canada; Department of Neurology and Neurosurgery, McGill University, Montréal, QC, Canada; Department of Human Genetics, McGill University, Montréal, QC, Canada.
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25
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Terryn J, Verfaillie CM, Van Damme P. Tweaking Progranulin Expression: Therapeutic Avenues and Opportunities. Front Mol Neurosci 2021; 14:713031. [PMID: 34366786 PMCID: PMC8343103 DOI: 10.3389/fnmol.2021.713031] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/07/2021] [Indexed: 01/01/2023] Open
Abstract
Frontotemporal dementia (FTD) is a neurodegenerative disease, leading to behavioral changes and language difficulties. Heterozygous loss-of-function mutations in progranulin (GRN) induce haploinsufficiency of the protein and are associated with up to one-third of all genetic FTD cases worldwide. While the loss of GRN is primarily associated with neurodegeneration, the biological functions of the secreted growth factor-like protein are more diverse, ranging from wound healing, inflammation, vasculogenesis, and metabolic regulation to tumor cell growth and metastasis. To date, no disease-modifying treatments exist for FTD, but different therapeutic approaches to boost GRN levels in the central nervous system are currently being developed (including AAV-mediated GRN gene delivery as well as anti-SORT1 antibody therapy). In this review, we provide an overview of the multifaceted regulation of GRN levels and the corresponding therapeutic avenues. We discuss the opportunities, advantages, and potential drawbacks of the diverse approaches. Additionally, we highlight the therapeutic potential of elevating GRN levels beyond patients with loss-of-function mutations in GRN.
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Affiliation(s)
- Joke Terryn
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven-University of Leuven, Leuven, Belgium.,Laboratory of Neurobiology, Center for Brain and Disease Research, VIB, Leuven, Belgium
| | - Catherine M Verfaillie
- Department of Development and Regeneration, Interdepartmental Stem Cell Institute, KU Leuven-University of Leuven, Leuven, Belgium
| | - Philip Van Damme
- Department of Neurosciences, Experimental Neurology and Leuven Brain Institute (LBI), KU Leuven-University of Leuven, Leuven, Belgium.,Laboratory of Neurobiology, Center for Brain and Disease Research, VIB, Leuven, Belgium.,Department of Neurology, University Hospitals Leuven, Leuven, Belgium
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26
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Damianich A, Facal CL, Muñiz JA, Mininni C, Soiza-Reilly M, Ponce De León M, Urrutia L, Falasco G, Ferrario JE, Avale ME. Tau mis-splicing correlates with motor impairments and striatal dysfunction in a model of tauopathy. Brain 2021; 144:2302-2309. [PMID: 34059893 DOI: 10.1093/brain/awab130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 03/08/2021] [Accepted: 03/14/2021] [Indexed: 01/02/2023] Open
Abstract
Tauopathies are neurodegenerative diseases caused by the abnormal metabolism of the microtubule associated protein Tau, which is highly expressed in neurons and critically involved in microtubule dynamics. In the adult human brain, the alternative splicing of exon 10 in tau pre-mRNA produces equal amounts of protein isoforms with either three (3 R) or four (4 R) microtubule binding domains. Imbalance in the 3 R : 4 R tau ratio is associated with primary tauopathies that develop atypical parkinsonism, such as Progressive Supranuclear Palsy and Corticobasal Degeneration. Yet, the development of effective therapies for those pathologies is an unmet goal. Here we report motor coordination impairments in the htau mouse model of tauopathy which bear abnormal 3 R : 4 R tau isoforms contents, and contrariwise to TauKO mice, are unresponsive to L-DOPA. Preclinical-PET imaging, array tomography and electrophysiological analyses pointed the dorsal striatum as the candidate structure mediating such phenotypes. Indeed, local modulation of tau isoforms by RNA trans-splicing in the striata of adult htau mice, prevented motor coordination deficits and restored basal neuronal firing. Together, these results constitute readout that abnormal striatal tau-isoforms contents might lead to parkinsonian-like phenotypes and provide proof of concept that modulation of tau mis-splicing could be a plausible disease-modifying therapy for some primary tauopathies.
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Affiliation(s)
- Ana Damianich
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | - Carolina Lucia Facal
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | - Javier Andrés Muñiz
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
| | - Camilo Mininni
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), Buenos Aires, Argentina
| | - Mariano Soiza-Reilly
- Instituto de Fisiología Biología Molecular y Neurociencias (IFIBYNE-UBA-CONICET), Buenos Aires, Argentina
| | - Magdalena Ponce De León
- Laboratorio De Imágenes Preclínicas, Centro de Imágenes Moleculares, FLENI, Buenos Aires, Argentina
| | - Leandro Urrutia
- Laboratorio De Imágenes Preclínicas, Centro de Imágenes Moleculares, FLENI, Buenos Aires, Argentina
| | - German Falasco
- Laboratorio De Imágenes Preclínicas, Centro de Imágenes Moleculares, FLENI, Buenos Aires, Argentina
| | - Juan Esteban Ferrario
- Instituto de Biociencias, Biotecnología y Biología Traslacional (iB3), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María Elena Avale
- Instituto de Investigaciones en Ingeniería Genética y Biología Molecular (INGEBI-CONICET), Buenos Aires, Argentina
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27
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Mol MO, Wong TH, Melhem S, Basu S, Viscusi R, Galjart N, Rozemuller AJ, Fallini C, Landers JE, Kaat LD, Seelaar H, van Rooij JG, van Swieten JC. Novel TUBA4A Variant Associated With Familial Frontotemporal Dementia. Neurol Genet 2021; 7:e596. [PMID: 34169147 PMCID: PMC8221227 DOI: 10.1212/nxg.0000000000000596] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 04/06/2021] [Indexed: 02/01/2023]
Abstract
OBJECTIVE Despite the strong genetic component of frontotemporal dementia (FTD), a substantial proportion of patients remain genetically unresolved. We performed an in-depth study of a family with an autosomal dominant form of FTD to investigate the underlying genetic cause. METHODS Following clinical and pathologic characterization of the family, genetic studies included haplotype sharing analysis and exome sequencing. Subsequently, we performed immunohistochemistry, immunoblotting, and a microtubule repolymerization assay to investigate the potential impact of the candidate variant in tubulin alpha 4a (TUBA4A). RESULTS The clinical presentation in this family is heterogeneous, including behavioral changes, parkinsonian features, and uncharacterized dementia. Neuropathologic examination of 2 patients revealed TAR DNA binding protein 43 (TDP-43) pathology with abundant dystrophic neurites and neuronal intranuclear inclusions, consistent with frontotemporal lobar degeneration-TDP type A. We identified a likely pathogenic variant in TUBA4A segregating with disease. TUBA4A encodes for α-tubulin, which is a major component of the microtubule network. Variants in TUBA4A have been suggested as a rare genetic cause of amyotrophic lateral sclerosis (ALS) and have sporadically been reported in patients with FTD without supporting genetic segregation. A decreased trend of TUBA4A protein abundance was observed in patients compared with controls, and a microtubule repolymerization assay demonstrated disrupted α-tubulin function. As opposed to variants found in ALS, TUBA4A variants associated with FTD appear more localized to the N-terminus, indicating different pathogenic mechanisms. CONCLUSIONS Our findings support the role of TUBA4A variants as rare genetic cause of familial FTD.
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Affiliation(s)
| | | | - Shamiram Melhem
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Sreya Basu
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Riccardo Viscusi
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Niels Galjart
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Annemieke J.M. Rozemuller
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Claudia Fallini
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - John E. Landers
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Laura Donker Kaat
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Harro Seelaar
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - Jeroen G.J. van Rooij
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
| | - John C. van Swieten
- From the Department of Neurology (M.O.M., T.H.W., S.M., L.D.K., H.S.,
J.G.J.v.R., J.C.v.S.), and Department of Cell Biology (S.B., R.V., N.G.),
Erasmus Medical Center, Rotterdam; Department of Pathology (A.J.M.R.), Amsterdam
University Medical Center, Location VUmc, Amsterdam Neuroscience, the
Netherlands; Department of Cell and Molecular Biology (C.F.), University of
Rhode Island, Kingston; Department of Neurology (J.E.L.), University of
Massachusetts Medical School, Worcester; and Department of Clinical Genetics
(L.D.K.), Erasmus Medical Center, Rotterdam, the Netherlands
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28
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Dominguez J, Yu JT, Tan YJ, Ng A, De Guzman MF, Natividad B, Daroy ML, Cano J, Yu J, Lian MM, Zeng L, Lim WK, Foo JN, Ng ASL. Novel Optineurin Frameshift Insertion in a Family With Frontotemporal Dementia and Parkinsonism Without Amyotrophic Lateral Sclerosis. Front Neurol 2021; 12:645913. [PMID: 34093394 PMCID: PMC8170397 DOI: 10.3389/fneur.2021.645913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 04/12/2021] [Indexed: 12/30/2022] Open
Abstract
Frontotemporal Dementia (FTD) is a common cause of Young Onset Dementia and has diverse clinical manifestations involving behavior, executive function, language and motor function, including parkinsonism. Up to 50% of FTD patients report a positive family history, supporting a strong genetic basis, particularly in cases with both FTD and amyotrophic lateral sclerosis (FTD-ALS). Mutations in three genes are associated with the majority of familial FTD (fFTD) cases - microtubule associated protein tau gene (MAPT), granulin precursor (GRN), and hexanucleotide repeat expansions in chromosome 9 open reading frame 72- SMCR8complex subunit (C9orf72) while mutations in other genes such as optineurin (OPTN) have rarely been reported. Mutations in OPTN have been reported mostly in familial and sporadic cases of ALS, or in rare cases of FTD-ALS, but not in association with pure or predominant FTD and/or parkinsonian phenotype. Here, we report for the first time, a family from the Philippines with four members harboring a novel frameshift insertion at OPTN (Chr 10:13166090 G>GA) p.Lys328GluTer11, three of whom presented with FTD-related phenotypes. Additionally, one sibling heterozygous for the frameshift insertion had a predominantly parkinsonian phenotype resembling corticobasal syndrome, but it remains to be determined if this phenotype is related to the frameshift insertion. Notably, none of the affected members showed any evidence of motor neuron disease or ALS at the time of writing, both clinically and on electrophysiological testing, expanding the phenotypic spectrum of OPTN mutations. Close follow-up of mutation carriers for the development of new clinical features and wider investigation of additional family members with further genetic analyses will be conducted to investigate the possibility of other genetic modifiers in this family which could explain phenotypic heterogeneity.
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Affiliation(s)
- Jacqueline Dominguez
- Institute for Neurosciences, St. Luke's Medical Center, Quezon City, Philippines
| | - Jeryl Tan Yu
- Institute for Neurosciences, St. Luke's Medical Center, Quezon City, Philippines
| | - Yi Jayne Tan
- Department of Neurology, National Neuroscience Institute, Singapore, Singapore
| | - Arlene Ng
- Institute for Neurosciences, St. Luke's Medical Center, Quezon City, Philippines
| | - Ma Fe De Guzman
- Research and Biotechnology Division, St Luke's Medical Centre, Quezon, Philippines
| | - Boots Natividad
- Research and Biotechnology Division, St Luke's Medical Centre, Quezon, Philippines
| | - Ma Luisa Daroy
- Research and Biotechnology Division, St Luke's Medical Centre, Quezon, Philippines
| | - Jemellee Cano
- Institute for Neurosciences, St. Luke's Medical Center, Quezon City, Philippines
| | - Justine Yu
- Institute for Neurosciences, St. Luke's Medical Center, Quezon City, Philippines
| | - Michelle M Lian
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Li Zeng
- Neural Stem Cell Research Lab, Research Department, National Neuroscience Institute, Singapore, Singapore.,Neuroscience and Behavioural Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Weng Khong Lim
- Singhealth Duke-NUS Institute of Precision Medicine, Singapore, Singapore.,Cancer & Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore
| | - Jia Nee Foo
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.,Human Genetics, Genome Institute of Singapore, ASTAR, Singapore, Singapore
| | - Adeline S L Ng
- Department of Neurology, National Neuroscience Institute, Singapore, Singapore.,Neuroscience and Behavioural Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
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29
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Tsamis KI, Sakkas H, Giannakis A, Ryu HS, Gartzonika C, Nikas IP. Evaluating Infectious, Neoplastic, Immunological, and Degenerative Diseases of the Central Nervous System with Cerebrospinal Fluid-Based Next-Generation Sequencing. Mol Diagn Ther 2021; 25:207-229. [PMID: 33646562 PMCID: PMC7917176 DOI: 10.1007/s40291-021-00513-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/07/2021] [Indexed: 12/24/2022]
Abstract
Cerebrospinal fluid (CSF) is a clear and paucicellular fluid that circulates within the ventricular system and the subarachnoid space of the central nervous system (CNS), and diverse CNS disorders can impact its composition, volume, and flow. As conventional CSF testing suffers from suboptimal sensitivity, this review aimed to evaluate the role of next-generation sequencing (NGS) in the work-up of infectious, neoplastic, neuroimmunological, and neurodegenerative CNS diseases. Metagenomic NGS showed improved sensitivity—compared to traditional methods—to detect bacterial, viral, parasitic, and fungal infections, while the overall performance was maximized in some studies when all diagnostic modalities were used. In patients with primary CNS cancer, NGS findings in the CSF were largely concordant with the molecular signatures derived from tissue-based molecular analysis; of interest, additional mutations were identified in the CSF in some glioma studies, reflecting intratumoral heterogeneity. In patients with metastasis to the CNS, NGS facilitated diagnosis, prognosis, therapeutic management, and monitoring, exhibiting higher sensitivity than neuroimaging, cytology, and plasma-based molecular analysis. Although evidence is still rudimentary, NGS could enhance the diagnosis and pathogenetic understanding of multiple sclerosis in addition to Alzheimer and Parkinson disease. To conclude, NGS has shown potential to aid the research, facilitate the diagnostic approach, and improve the management outcomes of all the aforementioned CNS diseases. However, to establish its role in clinical practice, the clinical validity and utility of each NGS protocol should be determined. Lastly, as most evidence has been derived from small and retrospective studies, results from randomized control trials could be of significant value.
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Affiliation(s)
- Konstantinos I Tsamis
- Department of Neurology, University Hospital of Ioannina, 45500, Ioannina, Greece. .,School of Medicine, European University Cyprus, 2404, Nicosia, Cyprus.
| | - Hercules Sakkas
- Microbiology Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Alexandros Giannakis
- Department of Neurology, University Hospital of Ioannina, 45500, Ioannina, Greece
| | - Han Suk Ryu
- Department of Pathology, Seoul National University Hospital, Seoul, 03080, Korea
| | - Constantina Gartzonika
- Microbiology Department, Faculty of Medicine, School of Health Sciences, University of Ioannina, 45110, Ioannina, Greece
| | - Ilias P Nikas
- School of Medicine, European University Cyprus, 2404, Nicosia, Cyprus
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30
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Picillo M, Ginevrino M, Dati G, Scannapieco S, Vallelunga A, Siano P, Volpe G, Ceravolo R, Nicoletti V, Cicero E, Nicoletti A, Zappia M, Peverelli S, Silani V, Pellecchia MT, Valente EM, Barone P. Genetic characterization of a cohort with familial parkinsonism and cognitive-behavioral syndrome: A Next Generation Sequencing study. Parkinsonism Relat Disord 2021; 84:82-90. [PMID: 33601107 DOI: 10.1016/j.parkreldis.2021.01.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/21/2021] [Accepted: 01/25/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To perform the genetic characterization of a cohort with familial parkinsonism and cognitive-behavioral syndrome. METHODS A Next Generation Sequencing - based targeted sequencing of 32 genes associated to various neurodegenerative phenotypes, plus a screening for SNCA Copy Number Variations and C9orf72 repeat expansion, was applied in a cohort of 85 Italian patients presenting with parkinsonism and cognitive and/or behavioral syndrome and a positive familial history for any neurodegenerative disorder (i.e., dementia, movement disorders, amyotrophic lateral sclerosis). RESULTS Through this combined genetic approach, we detected potentially relevant genetic variants in 25.8% of patients with familial parkinsonism and cognitive and/or behavioral syndrome. Peculiar phenotypes are described (Cortico-basal syndrome with APP, Posterior Cortical Atrophy with GBA, Progressive Supranuclear Palsy-like with GRN, Multiple System Atrophy with TARDBP). The majority of patients presented a rigid-bradykinetic parkinsonian syndrome, while rest tremor was less common. Myoclonic jerks, pyramidal signs, dystonic postures and vertical gaze disturbances were more frequently associated with the presence of a pathogenic variant in one of the tested genes. CONCLUSIONS Given the syndromic approach adopted in our study, we were able to provide a detailed clinical description of patients beyond the boundaries of specific clinical diagnoses and describe peculiar phenotypes. This observation further supports the knowledge that genetic disorders present phenotypic overlaps across different neurodegenerative syndromes, highlighting the limitations of current clinical diagnostic criteria defining sharp boundaries between distinct conditions.
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Affiliation(s)
- Marina Picillo
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Neuroscience Section, University of Salerno, Italy
| | - Monia Ginevrino
- Istituto di Medicina Genomica, Università Cattolica Del Sacro Cuore, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Roma, Italy; Laboratory of Medical Genetics, Bambino Gesù Children's Hospital, Rome, Italy
| | - Giovanna Dati
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Neuroscience Section, University of Salerno, Italy
| | - Sara Scannapieco
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Neuroscience Section, University of Salerno, Italy
| | - Annamaria Vallelunga
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Neuroscience Section, University of Salerno, Italy
| | - Pietro Siano
- Neurology Unit, University Hospital A.O.U. OO.RR. San Giovanni di Dio e Ruggi D'Aragona, Scuola Medica Salernitana, Salerno, Italy
| | - Giampiero Volpe
- Neurology Unit, University Hospital A.O.U. OO.RR. San Giovanni di Dio e Ruggi D'Aragona, Scuola Medica Salernitana, Salerno, Italy
| | - Roberto Ceravolo
- Dipartimento di Medicina Clinica e Sperimentale Università di Pisa, Italy, Università di Pisa, Pisa, Italy
| | - Valentina Nicoletti
- Dipartimento di Medicina Clinica e Sperimentale Università di Pisa, Italy, Università di Pisa, Pisa, Italy
| | - Edoardo Cicero
- Department G.F. Ingrassia, Section of Neurosciences, University of Catania, Catania, Italy
| | - Alessandra Nicoletti
- Department G.F. Ingrassia, Section of Neurosciences, University of Catania, Catania, Italy
| | - Mario Zappia
- Department G.F. Ingrassia, Section of Neurosciences, University of Catania, Catania, Italy
| | - Silvia Peverelli
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milano, Italy; Department of Pathophysiology and Transplantation, "Dino Ferrari" Center, Università degli Studi di Milano, Milan, Italy
| | - Maria Teresa Pellecchia
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Neuroscience Section, University of Salerno, Italy
| | - Enza Maria Valente
- Department of Molecular Medicine, University of Pavia, Pavia, Italy; IRCCS Mondino Foundation, Pavia, Italy.
| | - Paolo Barone
- Center for Neurodegenerative Diseases (CEMAND), Department of Medicine, Surgery and Dentistry, Neuroscience Section, University of Salerno, Italy.
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31
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Arienti F, Lazzeri G, Vizziello M, Monfrini E, Bresolin N, Saetti MC, Picillo M, Franco G, Di Fonzo A. Unravelling Genetic Factors Underlying Corticobasal Syndrome: A Systematic Review. Cells 2021; 10:171. [PMID: 33467748 PMCID: PMC7830591 DOI: 10.3390/cells10010171] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 12/26/2022] Open
Abstract
Corticobasal syndrome (CBS) is an atypical parkinsonian presentation characterized by heterogeneous clinical features and different underlying neuropathology. Most CBS cases are sporadic; nevertheless, reports of families and isolated individuals with genetically determined CBS have been reported. In this systematic review, we analyze the demographical, clinical, radiological, and anatomopathological features of genetically confirmed cases of CBS. A systematic search was performed using the PubMed, EMBASE, and Cochrane Library databases, included all publications in English from 1 January 1999 through 1 August 2020. We found forty publications with fifty-eight eligible cases. A second search for publications dealing with genetic risk factors for CBS led to the review of eight additional articles. GRN was the most common gene involved in CBS, representing 28 out of 58 cases, followed by MAPT, C9ORF72, and PRNP. A set of symptoms was shown to be significantly more common in GRN-CBS patients, including visuospatial impairment, behavioral changes, aphasia, and language alterations. In addition, specific demographical, clinical, biochemical, and radiological features may suggest mutations in other genes. We suggest a diagnostic algorithm to help in identifying potential genetic cases of CBS in order to improve the diagnostic accuracy and to better understand the still poorly defined underlying pathogenetic process.
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Affiliation(s)
- Federica Arienti
- Dino Ferrari Center, Department of Pathophysiology and Transplantation, Neuroscience Section, University of Milan, 20122 Milan, Italy; (F.A.); (G.L.); (M.V.); (E.M.); (M.C.S.)
| | - Giulia Lazzeri
- Dino Ferrari Center, Department of Pathophysiology and Transplantation, Neuroscience Section, University of Milan, 20122 Milan, Italy; (F.A.); (G.L.); (M.V.); (E.M.); (M.C.S.)
| | - Maria Vizziello
- Dino Ferrari Center, Department of Pathophysiology and Transplantation, Neuroscience Section, University of Milan, 20122 Milan, Italy; (F.A.); (G.L.); (M.V.); (E.M.); (M.C.S.)
| | - Edoardo Monfrini
- Dino Ferrari Center, Department of Pathophysiology and Transplantation, Neuroscience Section, University of Milan, 20122 Milan, Italy; (F.A.); (G.L.); (M.V.); (E.M.); (M.C.S.)
| | - Nereo Bresolin
- Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Neurology Unit, 20122 Milan, Italy; (N.B.); (G.F.)
| | - Maria Cristina Saetti
- Dino Ferrari Center, Department of Pathophysiology and Transplantation, Neuroscience Section, University of Milan, 20122 Milan, Italy; (F.A.); (G.L.); (M.V.); (E.M.); (M.C.S.)
| | - Marina Picillo
- Center for Neurodegenerative Diseases, Department of Medicine, Surgery and Dentistry, Neuroscience Section, University of Salerno, 84084 Salerno, Italy;
| | - Giulia Franco
- Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Neurology Unit, 20122 Milan, Italy; (N.B.); (G.F.)
| | - Alessio Di Fonzo
- Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Neurology Unit, 20122 Milan, Italy; (N.B.); (G.F.)
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32
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Vasenina EE, Levin OS. [Contemporary approaches to clinical diagnosis and treatment of tau-protein accumulation related multisystem degenerations]. Zh Nevrol Psikhiatr Im S S Korsakova 2020; 120:22-30. [PMID: 33205927 DOI: 10.17116/jnevro202012010222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Tau-protein pathology is the basis of a great variety of neurodegenerative diseases. Misfolding tau-protein conformation structure is the key pathogenetic mechanism of development of such multisystem degenerations as progressive supranuclear palsy, corticobasal syndrome, and fronto-temporal degeneration, as well as relatively recently added primary age-associated tauopathies and others. This review presents current views on the pathogenesis of various forms of neurodegenerative pathology linked to tau-protein accumulation. Potential of clinical diagnosis and modern diagnostic criteria, as well as existing therapy approaches, are discussed.
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Affiliation(s)
- E E Vasenina
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
| | - O S Levin
- Russian Medical Academy of Continuous Professional Education, Moscow, Russia
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33
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de Pablo-Fernández E, González-Herrero B, Cerdán Santacruz D, Rossor MN, Schott JM, Lashley T, Holton JL, Fox NC, Revesz T, Warren JD, Jaunmuktane Z, Rohrer JD, Warner TT. A Clinicopathologic Study of Movement Disorders in Frontotemporal Lobar Degeneration. Mov Disord 2020; 36:632-641. [PMID: 33155746 DOI: 10.1002/mds.28356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/29/2020] [Accepted: 10/12/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Despite the considerable overlap with atypical parkinsonism, a systematic characterization of the movement disorders associated with frontotemporal lobar degeneration (FTLD) is lacking. OBJECTIVE The aim of this study is to provide a detailed description of the phenomenology and neuropathologic correlations of movement disorders in FTLD. METHODS In this cohort study, movement disorder clinical data were retrospectively collected from medical records of consecutive patients with a postmortem diagnosis of FTLD from the Queen Square Brain Bank between January 2010 and December 2018. At postmortem, neurodegenerative pathologies were systematically evaluated following consensus criteria. Degeneration of the substantia nigra was assessed as a marker of presynaptic dopaminergic parkinsonism using semiquantitative methods. RESULTS A total of 55 patients (35 men [64%]) were included with median (interquartile range) age at diagnosis of 58.8 (52.6-63.9) years and a disease duration of 9.6 (6.2-12.9) years. Movement disorders were present in 19 (35%) patients without differences among disease subtypes. The most common syndromes were parkinsonism (9 patients [16%]), usually as an additional late feature, and corticobasal syndrome (CBS, 7 patients [13%]), commonly as a presenting feature. Substantia nigra degeneration was present in 37 (67%) patients although it did not show a good clinical correlation with movement disorders. Those with Pick's disease showed milder substantia nigra degeneration and better response to levodopa. CONCLUSIONS Movement disorders can present in all FTLD subtypes, more commonly as a late additional feature (parkinsonism) or as a presenting symptom (CBS). The underlying pathophysiology is complex and likely to involve structures outside the presynaptic striatonigral system. © 2020 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Eduardo de Pablo-Fernández
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom.,Department of Clinical and Movement Neurosciences, Reta Lila Weston Institute of Neurological Studies, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Belén González-Herrero
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom.,Bellvitge University Hospital and Bellvitge Biomedical Research Institute-IDIBELL, University of Barcelona, Barcelona, Spain
| | - Debora Cerdán Santacruz
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom.,Neurology Department, Complejo Asistencial de Segovia, Segovia, Spain
| | - Martin N Rossor
- Department of Neurodegenerative Diseases, Dementia Research Centre, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Jonathan M Schott
- Department of Neurodegenerative Diseases, Dementia Research Centre, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Tammaryn Lashley
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom.,Department of Neurodegenerative Diseases, Dementia Research Centre, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Janice L Holton
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Nick C Fox
- Department of Neurodegenerative Diseases, Dementia Research Centre, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Tamas Revesz
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Jason D Warren
- Department of Neurodegenerative Diseases, Dementia Research Centre, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Zane Jaunmuktane
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Jonathan D Rohrer
- Department of Neurodegenerative Diseases, Dementia Research Centre, UCL Queen Square Institute of Neurology, London, United Kingdom
| | - Thomas T Warner
- Department of Clinical and Movement Neurosciences, Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, United Kingdom.,Department of Clinical and Movement Neurosciences, Reta Lila Weston Institute of Neurological Studies, UCL Queen Square Institute of Neurology, London, United Kingdom
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34
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Ganguly J, Jog M. Tauopathy and Movement Disorders-Unveiling the Chameleons and Mimics. Front Neurol 2020; 11:599384. [PMID: 33250855 PMCID: PMC7674803 DOI: 10.3389/fneur.2020.599384] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 09/30/2020] [Indexed: 12/11/2022] Open
Abstract
The spectrum of tauopathy encompasses heterogenous group of neurodegenerative disorders characterized by neural or glial deposition of pathological protein tau. Clinically they can present as cognitive syndromes, movement disorders, motor neuron disease, or mixed. The heterogeneity in clinical presentation, genetic background, and underlying pathology make it difficult to classify and clinically approach tauopathy. In the literature, tauopathies are thus mostly highlighted from pathological perspective. From clinical standpoint, cognitive syndromes are often been focussed while reviewing tauopathies. However, the spectrum of tauopathy has also evolved significantly in the domain of movement disorders and has transgressed beyond the domain of primary tauopathies. Secondary tauopathies from neuroinflammation or autoimmune insults and some other "novel" tauopathies are increasingly being reported in the current literature, while some of them are geographically isolated. Because of the overlapping clinical phenotypes, it often becomes difficult for the clinician to diagnose them clinically and have to wait for the pathological confirmation by autopsy. However, each of these tauopathies has some clinical and radiological signatures those can help in clinical diagnosis and targeted genetic testing. In this review, we have exposed the heterogeneity of tauopathy from a movement disorder perspective and have provided a clinical approach to diagnose them ante mortem before confirmatory autopsy. Additionally, phenotypic variability of these disorders (chameleons) and the look-alikes (mimics) have been discussed with potential clinical pointers for each of them. The review provides a framework within which new and as yet undiscovered entities can be classified in the future.
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Affiliation(s)
| | - Mandar Jog
- Movement Disorder Centre, London Health Sciences Centre, University of Western Ontario, London, ON, Canada
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35
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Phenotype Heterogeneity and Genotype Correlation of MAPT Mutations in a Chinese PUMCH Cohort. J Mol Neurosci 2020; 71:1015-1022. [PMID: 33006106 DOI: 10.1007/s12031-020-01723-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 09/25/2020] [Indexed: 01/09/2023]
Abstract
Frontotemporal dementia (FTD) is a heterogeneous disease both clinically and pathologically. Genetic mutation in microtubule-associated protein tau (MAPT) is the most common cause of FTD, and the phenotype is related to the mutation location. However, the phenotype and genotype correlation varies somewhat among different cohorts and ethnicities. Whole-genome next-generation sequencing (NGS) was carried out for 1351 patients with dementia at Peking Union Medical College Hospital. MAPT variations classified as pathogenic and of uncertain significance were identified. Demographic information, clinical presentations, and neuroimaging were collected, and the phenotype-genotype correlation was analyzed with a concurrent literature review. Twenty-four patients were enrolled; 8 patients carrying the D177V mutation are discussed separately. The average onset age was young, and most of them had a positive family history. Cognitive dysfunction, behavior, and personality changes as well as aphasia were the most common presentations. Most structural MRIs showed asymmetrical atrophy of the temporal lobe, with/without similar changes in the frontal lobe. L266V carriers presented with youngest onset typical behavior variant FTD or aphasia; P301L carriers presented with behavior variant FTD or aphasia. Functional MRI and molecular imaging also showed that the involved areas were similar to those with structural atrophy. D296N carriers presented atypical parkinsonism and cognitive dysfunction at older ages. Eight D177V carriers had extraordinarily different manifestations. The clinical phenotype of most of them was not FTD, though cerebral vascular lesions were obvious in some of them. MAPT mutation is rare in Chinese dementia patients. The phenotype and genotype correlation is specific and overlaps. The D177V mutation is possibly not directly pathogenic in our cohort. Some of the variants might increase the genetic risk of neurodegenerative diseases.
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36
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Benussi A, Ashton NJ, Karikari TK, Gazzina S, Premi E, Benussi L, Ghidoni R, Rodriguez JL, Emeršič A, Binetti G, Fostinelli S, Giunta M, Gasparotti R, Zetterberg H, Blennow K, Borroni B. Serum Glial Fibrillary Acidic Protein (GFAP) Is a Marker of Disease Severity in Frontotemporal Lobar Degeneration. J Alzheimers Dis 2020; 77:1129-1141. [DOI: 10.3233/jad-200608] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background: It is still unknown if serum glial fibrillary acidic protein (GFAP) is a useful marker in frontotemporal lobar degeneration (FTLD). Objective: To assess the diagnostic and prognostic value of serum GFAP in a large cohort of patients with FTLD. Methods: In this retrospective study, performed on 406 participants, we measured serum GFAP concentration with an ultrasensitive Single molecule array (Simoa) method in patients with FTLD, Alzheimer’s disease (AD), and in cognitively unimpaired elderly controls. We assessed the role of GFAP as marker of disease severity by analyzing the correlation with clinical variables, neurophysiological data, and cross-sectional brain imaging. Moreover, we evaluated the role of serum GFAP as a prognostic marker of disease survival. Results: We observed significantly higher levels of serum GFAP in patients with FTLD syndromes, except progressive supranuclear palsy, compared with healthy controls, but not compared with AD patients. In FTLD, serum GFAP levels correlated with measures of cognitive dysfunction and disease severity, and were associated with indirect measures of GABAergic deficit. Serum GFAP concentration was not a significant predictor of survival. Conclusion: Serum GFAP is increased in FTLD, correlates with cognition and GABAergic deficits, and thus shows promise as a biomarker of disease severity in FTLD.
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Affiliation(s)
- Alberto Benussi
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | - Nicholas J. Ashton
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Mölndal, Sweden
- King’s College London, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, London, UK
- NIHR Biomedical Research Centre for Mental Health & Biomedical Research Unit for Dementia at South London & Maudsley NHS Foundation, London, UK
| | - Thomas K. Karikari
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | | | - Enrico Premi
- Stroke Unit, ASST Spedali Civili, Brescia, Italy
| | - Luisa Benussi
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Roberta Ghidoni
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Juan Lantero Rodriguez
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | - Andreja Emeršič
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Department of Neurology, University Medical Centre Ljubljana, Slovenia
| | - Giuliano Binetti
- MAC Memory Clinic and Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Silvia Fostinelli
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Marcello Giunta
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
| | | | - Henrik Zetterberg
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Department of Neurology, University Medical Centre Ljubljana, Slovenia
- UK Dementia Research Institute at UCL, London, UK
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, UK
| | - Kaj Blennow
- Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Department of Neurology, University Medical Centre Ljubljana, Slovenia
| | - Barbara Borroni
- Neurology Unit, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
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Carneiro F, Saracino D, Huin V, Clot F, Delorme C, Méneret A, Thobois S, Cormier F, Corvol JC, Lenglet T, Vidailhet M, Habert MO, Gabelle A, Beaufils É, Mondon K, Tir M, Andriuta D, Brice A, Deramecourt V, Le Ber I. Isolated parkinsonism is an atypical presentation of GRN and C9orf72 gene mutations. Parkinsonism Relat Disord 2020; 80:73-81. [PMID: 32961397 DOI: 10.1016/j.parkreldis.2020.09.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION A phenotype of isolated parkinsonism mimicking Idiopathic Parkinson's Disease (IPD) is a rare clinical presentation of GRN and C9orf72 mutations, the major genetic causes of frontotemporal dementia (FTD). It still remains controversial if this association is fortuitous or not, and which clinical clues could reliably suggest a genetic FTD etiology in IPD patients. This study aims to describe the clinical characteristics of FTD mutation carriers presenting with IPD phenotype, provide neuropathological evidence of the mutation's causality, and specifically address their "red flags" according to current IPD criteria. METHODS Seven GRN and C9orf72 carriers with isolated parkinsonism at onset, and three patients from the literature were included in this study. To allow better delineation of their phenotype, the presence of supportive, exclusion and "red flag" features from MDS criteria were analyzed for each case. RESULTS Amongst the ten patients (5 GRN, 5 C9orf72), seven fulfilled probable IPD criteria during all the disease course, while behavioral/language or motoneuron dysfunctions occurred later in three. Disease duration was longer and dopa-responsiveness was more sustained in C9orf72 than in GRN carriers. Subtle motor features, cognitive/behavioral changes, family history of dementia/ALS were suggestive clues for a genetic diagnosis. Importantly, neuropathological examination in one patient revealed typical TDP-43-inclusions without alpha-synucleinopathy, thus demonstrating the causal link between FTD mutations, TDP-43-pathology and PD phenotype. CONCLUSION We showed that, altogether, family history of early-onset dementia/ALS, the presence of cognitive/behavioral dysfunction and subtle motor characteristics are atypical features frequently present in the parkinsonian presentations of GRN and C9orf72 mutations.
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Affiliation(s)
- Fábio Carneiro
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau - ICM, Inserm U1127, CNRS UMR 7225, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Hospital Garcia de Orta, Almada, Portugal; Centre de Référence des Démences Rares ou Précoces, IM2A, Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France
| | - Dario Saracino
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau - ICM, Inserm U1127, CNRS UMR 7225, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Centre de Référence des Démences Rares ou Précoces, IM2A, Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Aramis Project Team, Inria Research Center of Paris, Paris, France
| | - Vincent Huin
- Univ. Lille, Inserm, CHU-Lille, Lille Neuroscience & Cognition, UMR-S1172, Team Alzheimer & Tauopathies, F-59000, Lille, France
| | - Fabienne Clot
- Unité Fonctionelle de Neurogénétique Moléculaire et Cellulaire, Sorbonne Université, AP-HP, Hôpital Pitié-Salpêtrière, Paris, France
| | - Cécile Delorme
- Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France
| | - Aurélie Méneret
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau - ICM, Inserm U1127, CNRS UMR 7225, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France
| | - Stéphane Thobois
- Univ. Lyon, Université Claude Bernard Lyon 1, Faculté de Médecine Lyon Sud Charles Mérieux; CNRS, Institut des Sciences Cognitives Marc Jeannerod, UMR 5229, Bron; Hospices Civils de Lyon, Hôpital Neurologique Pierre Wertheimer, Neurologie C, Bron, France
| | - Florence Cormier
- Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France
| | - Jean Christophe Corvol
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau - ICM, Inserm U1127, CNRS UMR 7225, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Centre d'Investigation Clinique Neurosciences, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France
| | - Timothée Lenglet
- Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Centre de Référence SLA-IdF, AP-HP - Hôpital Pitié Salpêtrière, Paris, France
| | - Marie Vidailhet
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau - ICM, Inserm U1127, CNRS UMR 7225, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France
| | - Marie-Odile Habert
- Sorbonne Université, CNRS, Inserm, Laboratoire d'Imagerie Biomédicale, LIB, Paris, AP-HP - Hôpital Pitié-Salpêtrière, Médecine Nucléaire, Paris, France
| | - Audrey Gabelle
- CMRR, Département de Neurologie, CHU de Montpellier, Inserm U1061, Université de Montpellier i-site MUSE, Montpellier, France
| | - Émilie Beaufils
- Université François Rabelais de Tours, CHRU de Tours, Tours, France; Inserm U1253, IBrain, Tours, France
| | - Karl Mondon
- Université François Rabelais de Tours, CHRU de Tours, Tours, France
| | - Mélissa Tir
- Département de Neurologie, Laboratoire de Neurosciences Fonctionnelles et Pathologies (UR UPJV 4559), Université d'Amiens et Université de Picardie Jules Verne, Amiens, France
| | - Daniela Andriuta
- Département de Neurologie, Laboratoire de Neurosciences Fonctionnelles et Pathologies (UR UPJV 4559), Université d'Amiens et Université de Picardie Jules Verne, Amiens, France
| | - Alexis Brice
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau - ICM, Inserm U1127, CNRS UMR 7225, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France
| | - Vincent Deramecourt
- Université de Lille, Inserm U1172, CHU Lille, DistAlz, LiCEND, CNR-MAJ, Lille, France
| | - Isabelle Le Ber
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau - ICM, Inserm U1127, CNRS UMR 7225, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Centre de Référence des Démences Rares ou Précoces, IM2A, Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Département de Neurologie, AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Paris Brain Institute - Institut du Cerveau - ICM, FrontLab, Paris, France.
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VCP Machinery Mediates Autophagic Degradation of Empty Argonaute. Cell Rep 2020; 28:1144-1153.e4. [PMID: 31365860 DOI: 10.1016/j.celrep.2019.07.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/12/2019] [Accepted: 06/27/2019] [Indexed: 12/29/2022] Open
Abstract
The Argonaute subfamily of proteins (AGO) loads microRNAs (miRNAs) to form the effector complex that mediates target gene silencing. Empty AGO, but not miRNA-loaded AGO, is selectively degraded across species. We have reported that the degradation of empty AGO is part of a quality control pathway that eliminates dysfunctional AGO. However, how empty AGO is degraded remains unclear. Here we show that the empty state of Drosophila Ago1 is degraded by autophagy. Comprehensive LC-MS/MS analyses, together with manipulation of the Ago1 ubiquitination level, revealed that VCP, which mediates selective autophagy, recognizes empty Ago1 via the Ufd1-Npl4 heterodimer. Depletion of VCP-Ufd1-Npl4 machinery impairs degradation of empty Ago1 and miRNA-mediated target gene silencing. Our findings reveal a direct link between empty AGO degradation and selective autophagy that ensures efficient miRNA function.
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Feng T, Mai S, Roscoe JM, Sheng RR, Ullah M, Zhang J, Katz II, Yu H, Xiong W, Hu F. Loss of TMEM106B and PGRN leads to severe lysosomal abnormalities and neurodegeneration in mice. EMBO Rep 2020; 21:e50219. [PMID: 32852886 PMCID: PMC7534636 DOI: 10.15252/embr.202050219] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/25/2020] [Accepted: 07/14/2020] [Indexed: 12/12/2022] Open
Abstract
Haploinsufficiency of progranulin (PGRN) is a leading cause of frontotemporal lobar degeneration (FTLD). Loss of PGRN leads to lysosome dysfunction during aging. TMEM106B, a gene encoding a lysosomal membrane protein, is the main risk factor for FTLD with PGRN haploinsufficiency. But how TMEM106B affects FTLD disease progression remains to be determined. Here, we report that TMEM106B deficiency in mice leads to accumulation of lysosome vacuoles at the distal end of the axon initial segment in motor neurons and the development of FTLD‐related pathology during aging. Ablation of both PGRN and TMEM106B in mice results in severe neuronal loss and glial activation in the spinal cord, retina, and brain. Enlarged lysosomes are frequently found in both microglia and astrocytes. Loss of both PGRN and TMEM106B results in an increased accumulation of lysosomal vacuoles in the axon initial segment of motor neurons and enhances the manifestation of FTLD phenotypes with a much earlier onset. These results provide novel insights into the role of TMEM106B in the lysosome, in brain aging, and in FTLD pathogenesis.
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Affiliation(s)
- Tuancheng Feng
- Department of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Shuyi Mai
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Jenn Marie Roscoe
- Department of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Rory R Sheng
- Department of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Mohammed Ullah
- Department of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Junke Zhang
- Department of Computational Biology, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Isabel Iscol Katz
- Department of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Haiyuan Yu
- Department of Computational Biology, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
| | - Wenjun Xiong
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Fenghua Hu
- Department of Molecular Biology and Genetics, Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY, USA
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Magrinelli F, Latorre A, Balint B, Mackenzie M, Mulroy E, Stamelou M, Tinazzi M, Bhatia KP. Isolated and combined genetic tremor syndromes: a critical appraisal based on the 2018 MDS criteria. Parkinsonism Relat Disord 2020; 77:121-140. [PMID: 32818815 DOI: 10.1016/j.parkreldis.2020.04.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 04/13/2020] [Accepted: 04/18/2020] [Indexed: 12/12/2022]
Abstract
The 2018 consensus statement on the classification of tremors proposes a two-axis categorization scheme based on clinical features and etiology. It also defines "isolated" and "combined" tremor syndromes depending on whether tremor is the sole clinical manifestation or is associated with other neurological or systemic signs. This syndromic approach provides a guide to investigate the underlying etiology of tremors, either genetic or acquired. Several genetic defects have been proven to cause tremor disorders, including autosomal dominant and recessive, X-linked, and mitochondrial diseases, as well as chromosomal abnormalities. Furthermore, some tremor syndromes are recognized in individuals with a positive family history, but their genetic confirmation is pending. Although most genetic tremor disorders show a combined clinical picture, there are some distinctive conditions in which tremor may precede the appearance of other neurological signs by years or remain the prominent manifestation throughout the disease course, previously leading to misdiagnosis as essential tremor (ET). Advances in the knowledge of genetically determined tremors may have been hampered by the inclusion of heterogeneous entities in previous studies on ET. The recent classification of tremors therefore aims to provide more consistent clinical data for deconstructing the genetic basis of tremor syndromes in the next-generation and long-read sequencing era. This review outlines the wide spectrum of tremor disorders with defined or presumed genetic etiology, both isolated and combined, unraveling diagnostic clues of these conditions and focusing mainly on ET-like phenotypes. Furthermore, we suggest a phenotype-to-genotype algorithm to support clinicians in identifying tremor syndromes and guiding genetic investigations.
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Affiliation(s)
- Francesca Magrinelli
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, United Kingdom; Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
| | - Anna Latorre
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, United Kingdom.
| | - Bettina Balint
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, United Kingdom; Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany.
| | - Melissa Mackenzie
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, United Kingdom.
| | - Eoin Mulroy
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, United Kingdom.
| | - Maria Stamelou
- Department of Neurology, Attikon University Hospital, Athens, Greece.
| | - Michele Tinazzi
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
| | - Kailash P Bhatia
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, United Kingdom.
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Schirinzi T, Canevelli M, Suppa A, Bologna M, Marsili L. The continuum between neurodegeneration, brain plasticity, and movement: a critical appraisal. Rev Neurosci 2020; 31:723-742. [DOI: 10.1515/revneuro-2020-0011] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 05/08/2020] [Indexed: 01/09/2023]
Abstract
Abstract
While the “physiological” aging process is associated with declines in motor and cognitive features, these changes do not significantly impair functions and activities of daily living. Differently, motor and cognitive impairment constitute the most common phenotypic expressions of neurodegeneration. Both manifestations frequently coexist in the same disease, thus making difficult to detect “pure” motor or cognitive conditions. Movement disorders are often characterized by cognitive disturbances, and neurodegenerative dementias often exhibit the occurrence of movement disorders. Such a phenotypic overlap suggests approaching these conditions by highlighting the commonalities of entities traditionally considered distinct. In the present review, we critically reappraised the common clinical and pathophysiological aspects of neurodegeneration in both animal models and patients, looking at motricity as a trait d’union over the spectrum of neurodegeneration and focusing on synaptopathy and oscillopathy as the common pathogenic background. Finally, we discussed the possible role of movement as neuroprotective intervention in neurodegenerative conditions, regardless of the etiology. The identification of commonalities is critical to drive future research and develop novel possible disease-modifying interventions.
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Affiliation(s)
- Tommaso Schirinzi
- Department of Systems Medicine , University of Rome Tor Vergata , Rome , Italy
| | - Marco Canevelli
- Department of Human Neurosciences , Sapienza University of Rome , Rome , Italy
- National Center for Disease Prevention and Health Promotion, National Institute of Health , Rome , Italy
| | - Antonio Suppa
- Department of Human Neurosciences , Sapienza University of Rome , Rome , Italy
- IRCCS Neuromed , Pozzilli , IS , Italy
| | - Matteo Bologna
- Department of Human Neurosciences , Sapienza University of Rome , Rome , Italy
- IRCCS Neuromed , Pozzilli , IS , Italy
| | - Luca Marsili
- Department of Neurology, Gardner Family Center for Parkinson’s Disease and Movement Disorders , University of Cincinnati , 260 Stetson Street , Cincinnati , 45219, OH , USA
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Normal presynaptic dopaminergic neurons in corticobasal syndrome with MAPT gene mutation. Eur J Nucl Med Mol Imaging 2020; 48:729-730. [PMID: 32648082 DOI: 10.1007/s00259-020-04949-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/30/2020] [Indexed: 10/23/2022]
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Guerreiro R, Gibbons E, Tábuas-Pereira M, Kun-Rodrigues C, Santo GC, Bras J. Genetic architecture of common non-Alzheimer's disease dementias. Neurobiol Dis 2020; 142:104946. [PMID: 32439597 PMCID: PMC8207829 DOI: 10.1016/j.nbd.2020.104946] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/04/2020] [Accepted: 05/13/2020] [Indexed: 02/07/2023] Open
Abstract
Frontotemporal dementia (FTD), dementia with Lewy bodies (DLB) and vascular dementia (VaD) are the most common forms of dementia after Alzheimer’s disease (AD). The heterogeneity of these disorders and/or the clinical overlap with other diseases hinder the study of their genetic components. Even though Mendelian dementias are rare, the study of these forms of disease can have a significant impact in the lives of patients and families and have successfully brought to the fore many of the genes currently known to be involved in FTD and VaD, starting to give us a glimpse of the molecular mechanisms underlying these phenotypes. More recently, genome-wide association studies have also pointed to disease risk-associated loci. This has been particularly important for DLB where familial forms of disease are very rarely described. In this review we systematically describe the Mendelian and risk genes involved in these non-AD dementias in an effort to contribute to a better understanding of their genetic architecture, find differences and commonalities between different dementia phenotypes, and uncover areas that would benefit from more intense research endeavors.
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Affiliation(s)
- Rita Guerreiro
- Center for Neurodegenerative Science, Van Andel Institute, Grand Rapids, MI, USA; Division of Psychiatry and Behavioral Medicine, Michigan State University College of Human Medicine, Grand Rapids, MI, USA.
| | - Elizabeth Gibbons
- Center for Neurodegenerative Science, Van Andel Institute, Grand Rapids, MI, USA
| | - Miguel Tábuas-Pereira
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Celia Kun-Rodrigues
- Center for Neurodegenerative Science, Van Andel Institute, Grand Rapids, MI, USA
| | - Gustavo C Santo
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Jose Bras
- Center for Neurodegenerative Science, Van Andel Institute, Grand Rapids, MI, USA; Division of Psychiatry and Behavioral Medicine, Michigan State University College of Human Medicine, Grand Rapids, MI, USA
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Seranova E, Palhegyi AM, Verma S, Dimova S, Lasry R, Naama M, Sun C, Barrett T, Rosenstock TR, Kumar D, Cohen MA, Buganim Y, Sarkar S. Human Induced Pluripotent Stem Cell Models of Neurodegenerative Disorders for Studying the Biomedical Implications of Autophagy. J Mol Biol 2020; 432:2754-2798. [PMID: 32044344 DOI: 10.1016/j.jmb.2020.01.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 12/12/2022]
Abstract
Autophagy is an intracellular degradation process that is essential for cellular survival, tissue homeostasis, and human health. The housekeeping functions of autophagy in mediating the clearance of aggregation-prone proteins and damaged organelles are vital for post-mitotic neurons. Improper functioning of this process contributes to the pathology of myriad human diseases, including neurodegeneration. Impairment in autophagy has been reported in several neurodegenerative diseases where pharmacological induction of autophagy has therapeutic benefits in cellular and transgenic animal models. However, emerging studies suggest that the efficacy of autophagy inducers, as well as the nature of the autophagy defects, may be context-dependent, and therefore, studies in disease-relevant experimental systems may provide more insights for clinical translation to patients. With the advancements in human stem cell technology, it is now possible to establish disease-affected cellular platforms from patients for investigating disease mechanisms and identifying candidate drugs in the appropriate cell types, such as neurons that are otherwise not accessible. Towards this, patient-derived human induced pluripotent stem cells (hiPSCs) have demonstrated considerable promise in constituting a platform for effective disease modeling and drug discovery. Multiple studies have utilized hiPSC models of neurodegenerative diseases to study autophagy and evaluate the therapeutic efficacy of autophagy inducers in neuronal cells. This review provides an overview of the regulation of autophagy, generation of hiPSCs via cellular reprogramming, and neuronal differentiation. It outlines the findings in various neurodegenerative disorders where autophagy has been studied using hiPSC models.
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Affiliation(s)
- Elena Seranova
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Adina Maria Palhegyi
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Surbhi Verma
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Cellular Immunology Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Simona Dimova
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Rachel Lasry
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem, 91120, Israel
| | - Moriyah Naama
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem, 91120, Israel
| | - Congxin Sun
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Timothy Barrett
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Tatiana Rosado Rosenstock
- Department of Physiological Science, Santa Casa de São Paulo School of Medical Sciences, São Paulo, SP, 01221-020, Brazil
| | - Dhiraj Kumar
- Cellular Immunology Group, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Malkiel A Cohen
- Whitehead Institute for Biomedical Research, Cambridge, MA, 02142, USA
| | - Yosef Buganim
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, The Hebrew University Hadassah Medical School, Jerusalem, 91120, Israel
| | - Sovan Sarkar
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
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Dube U, Ibanez L, Budde JP, Benitez BA, Davis AA, Harari O, Iles MM, Law MH, Brown KM, Cruchaga C. Overlapping genetic architecture between Parkinson disease and melanoma. Acta Neuropathol 2020; 139:347-364. [PMID: 31845298 PMCID: PMC7379325 DOI: 10.1007/s00401-019-02110-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/29/2019] [Accepted: 12/04/2019] [Indexed: 12/15/2022]
Abstract
Epidemiologic studies have reported inconsistent results regarding an association between Parkinson disease (PD) and cutaneous melanoma (melanoma). Identifying shared genetic architecture between these diseases can support epidemiologic findings and identify common risk genes and biological pathways. Here, we apply polygenic, linkage disequilibrium-informed methods to the largest available case-control, genome-wide association study summary statistic data for melanoma and PD. We identify positive and significant genetic correlation (correlation: 0.17, 95% CI 0.10-0.24; P = 4.09 × 10-06) between melanoma and PD. We further demonstrate melanoma and PD-inferred gene expression to overlap across tissues (correlation: 0.14, 95% CI 0.06 to 0.22; P = 7.87 × 10-04) and highlight seven genes including PIEZO1, TRAPPC2L, and SOX6 as potential mediators of the genetic correlation between melanoma and PD. These findings demonstrate specific, shared genetic architecture between PD and melanoma that manifests at the level of gene expression.
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Affiliation(s)
- Umber Dube
- Medical Scientist Training Program, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO, 63110, USA
- Department of Psychiatry, Washington University School of Medicine, 660 S. Euclid Ave. CB8134, St. Louis, MO, 63110, USA
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
- Department of Psychiatry, NeuroGenomics and Informatics, Washington University School of Medicine, 660 S. Euclid Ave. B8111, St. Louis, MO, 63110, USA
| | - Laura Ibanez
- Department of Psychiatry, Washington University School of Medicine, 660 S. Euclid Ave. CB8134, St. Louis, MO, 63110, USA
- Department of Psychiatry, NeuroGenomics and Informatics, Washington University School of Medicine, 660 S. Euclid Ave. B8111, St. Louis, MO, 63110, USA
| | - John P Budde
- Department of Psychiatry, Washington University School of Medicine, 660 S. Euclid Ave. CB8134, St. Louis, MO, 63110, USA
- Department of Psychiatry, NeuroGenomics and Informatics, Washington University School of Medicine, 660 S. Euclid Ave. B8111, St. Louis, MO, 63110, USA
| | - Bruno A Benitez
- Department of Psychiatry, Washington University School of Medicine, 660 S. Euclid Ave. CB8134, St. Louis, MO, 63110, USA
- Department of Psychiatry, NeuroGenomics and Informatics, Washington University School of Medicine, 660 S. Euclid Ave. B8111, St. Louis, MO, 63110, USA
| | - Albert A Davis
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
| | - Oscar Harari
- Department of Psychiatry, Washington University School of Medicine, 660 S. Euclid Ave. CB8134, St. Louis, MO, 63110, USA
- Department of Psychiatry, NeuroGenomics and Informatics, Washington University School of Medicine, 660 S. Euclid Ave. B8111, St. Louis, MO, 63110, USA
| | - Mark M Iles
- Leeds Institute for Data Analytics, University of Leeds, Leeds, UK
| | - Matthew H Law
- Statistical Genetics, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Kevin M Brown
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University School of Medicine, 660 S. Euclid Ave. CB8134, St. Louis, MO, 63110, USA.
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA.
- Department of Psychiatry, NeuroGenomics and Informatics, Washington University School of Medicine, 660 S. Euclid Ave. B8111, St. Louis, MO, 63110, USA.
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Greene P. Progressive Supranuclear Palsy, Corticobasal Degeneration, and Multiple System Atrophy. Continuum (Minneap Minn) 2020; 25:919-935. [PMID: 31356287 DOI: 10.1212/con.0000000000000751] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE OF REVIEW Patients who have parkinsonian features, especially without tremor, that are not responsive to levodopa, usually have one of these three major neurodegenerative disorders rather than Parkinson disease: progressive supranuclear palsy (PSP), multiple system atrophy (MSA), or corticobasal degeneration (CBD). Each of these disorders eventually develops signs and symptoms that distinguish it from idiopathic Parkinson disease, but these may not be present at disease onset. Although these conditions are not generally treatable, it is still important to correctly diagnose the condition as soon as possible. RECENT FINDINGS In recent years, it has been increasingly recognized that the symptoms of these diseases do not accurately predict the pathology, and the pathology does not accurately predict the clinical syndrome. Despite this, interest has grown in treating these diseases by targeting misfolded tau (in the case of PSP and CBD) and misfolded α-synuclein (in the case of MSA). SUMMARY Knowledge of the characteristic signs and symptoms of PSP, MSA, and CBD are essential in diagnosing and managing patients who have atypical parkinsonian syndromes.
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Balestrino R, Schapira A. Parkinson disease. Eur J Neurol 2019; 27:27-42. [DOI: 10.1111/ene.14108] [Citation(s) in RCA: 382] [Impact Index Per Article: 76.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/14/2019] [Indexed: 12/13/2022]
Affiliation(s)
- R. Balestrino
- Department of Neuroscience University of Turin Turin Italy
| | - A.H.V. Schapira
- Department of Clinical and Movement Neurosciences UCL Queen Square Institute of Neurology London UK
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48
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Wallings RL, Humble SW, Ward ME, Wade-Martins R. Lysosomal Dysfunction at the Centre of Parkinson's Disease and Frontotemporal Dementia/Amyotrophic Lateral Sclerosis. Trends Neurosci 2019; 42:899-912. [PMID: 31704179 DOI: 10.1016/j.tins.2019.10.002] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/25/2019] [Accepted: 10/04/2019] [Indexed: 12/14/2022]
Abstract
Parkinson's disease (PD) and frontotemporal dementia/amyotrophic lateral sclerosis (FTD/ALS) are insidious and incurable neurodegenerative diseases that represent a significant burden to affected individuals, caregivers, and an ageing population. Both PD and FTD/ALS are defined at post mortem by the presence of protein aggregates and the loss of specific subsets of neurons. We examine here the crucial role of lysosome dysfunction in these diseases and discuss recent evidence for converging mechanisms. This review draws upon multiple lines of evidence from genetic studies, human tissue, induced pluripotent stem cells (iPSCs), and animal models to argue that lysosomal failure is a primary mechanism of disease, rather than merely reflecting association with protein aggregate end-points. This review provides compelling rationale for targeting lysosomes in future therapeutics for both PD and FTD/ALS.
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Affiliation(s)
- Rebecca L Wallings
- Department of Physiology, Emory University, Decatur, GA, USA; Current address: Department of Neuroscience, Center for Translational Research and Neurodegenerative Disease, McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Stewart W Humble
- Oxford Parkinson's Disease Centre, Department of Physiology Anatomy and Genetics, University of Oxford, South Parks Road, Oxford, OX1 3QX, UK; National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Michael E Ward
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Richard Wade-Martins
- Oxford Parkinson's Disease Centre, Department of Physiology Anatomy and Genetics, University of Oxford, South Parks Road, Oxford, OX1 3QX, UK.
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49
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Palhegyi AM, Seranova E, Dimova S, Hoque S, Sarkar S. Biomedical Implications of Autophagy in Macromolecule Storage Disorders. Front Cell Dev Biol 2019; 7:179. [PMID: 31555645 PMCID: PMC6742707 DOI: 10.3389/fcell.2019.00179] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 08/19/2019] [Indexed: 12/20/2022] Open
Abstract
An imbalance between the production and clearance of macromolecules such as proteins, lipids and carbohydrates can lead to a category of diseases broadly known as macromolecule storage disorders. These include, but not limited to, neurodegenerative diseases such as Alzheimer’s, Parkinson’s and Huntington’s disease associated with accumulation of aggregation-prone proteins, Lafora and Pompe disease associated with glycogen accumulation, whilst lipid accumulation is characteristic to Niemann-Pick disease and Gaucher disease. One of the underlying factors contributing to the build-up of macromolecules in these storage disorders is the intracellular degradation pathway called autophagy. This process is the primary clearance route for unwanted macromolecules, either via bulk non-selective degradation, or selectively via aggrephagy, glycophagy and lipophagy. Since autophagy plays a vital role in maintaining cellular homeostasis, cell viability and human health, malfunction of this process could be detrimental. Indeed, defective autophagy has been reported in a number of macromolecule storage disorders where autophagy is impaired at distinct stages, such as at the level of autophagosome formation, autophagosome maturation or improper lysosomal degradation of the autophagic cargo. Of biomedical relevance, autophagy is regulated by multiple signaling pathways that are amenable to chemical perturbations by small molecules. Induction of autophagy has been shown to improve cell viability and exert beneficial effects in experimental models of various macromolecule storage disorders where the lysosomal functionality is not overtly compromised. In this review, we will discuss the role of autophagy in certain macromolecule storage disorders and highlight the potential therapeutic benefits of autophagy enhancers in these pathological conditions.
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Affiliation(s)
- Adina Maria Palhegyi
- College of Medical and Dental Sciences, Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, University of Birmingham, Birmingham, United Kingdom
| | - Elena Seranova
- College of Medical and Dental Sciences, Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, University of Birmingham, Birmingham, United Kingdom
| | - Simona Dimova
- College of Medical and Dental Sciences, Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, University of Birmingham, Birmingham, United Kingdom
| | - Sheabul Hoque
- College of Medical and Dental Sciences, Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, University of Birmingham, Birmingham, United Kingdom
| | - Sovan Sarkar
- College of Medical and Dental Sciences, Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, University of Birmingham, Birmingham, United Kingdom
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50
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Gallucci M, Dell’Acqua C, Boccaletto F, Fenoglio C, Galimberti D, Di Battista ME. Overlap Between Frontotemporal Dementia and Dementia with Lewy Bodies: A Treviso Dementia (TREDEM) Registry Case Report. J Alzheimers Dis 2019; 69:839-847. [DOI: 10.3233/jad-181298] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maurizio Gallucci
- Cognitive Impairment Center, Local Health Authority n.2 Marca Trevigiana, Treviso, Italy
| | - Carola Dell’Acqua
- Cognitive Impairment Center, Local Health Authority n.2 Marca Trevigiana, Treviso, Italy
| | - Franco Boccaletto
- Nuclear Medicine Unit, Local Health Authority n.2 Marca Trevigiana, Treviso, Italy
| | | | - Daniela Galimberti
- University of Milan, Dino Ferrari Center, Milan, Italy
- Fondazione IRCCS Ca’ Granda, Ospedale Policlinico, Neurodegenerative Disease Unit, Milan, Italy
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