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Churchill L, Chen YC, Lewis SJG, Matar E. Understanding REM Sleep Behavior Disorder through Functional MRI: A Systematic Review. Mov Disord 2024. [PMID: 38934216 DOI: 10.1002/mds.29898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/08/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Neuroimaging studies in rapid eye movement sleep behavior disorder (RBD) can inform fundamental questions about the pathogenesis of Parkinson's disease (PD). Across modalities, functional magnetic resonance imaging (fMRI) may be better suited to identify changes between neural networks in the earliest stages of Lewy body diseases when structural changes may be subtle or absent. This review synthesizes the findings from all fMRI studies of RBD to gain further insight into the pathophysiology and progression of Lewy body diseases. A total of 32 studies were identified using a systematic review conducted according to PRISMA guidelines between January 2000 to February 2024 for original fMRI studies in patients with either isolated RBD (iRBD) or RBD secondary to PD. Common functional alterations were detectable in iRBD patients compared with healthy controls across brainstem nuclei, basal ganglia, frontal and occipital lobes, and whole brain network measures. Patients with established PD and RBD demonstrated decreased functional connectivity across the whole brain and brainstem nuclei, but increased functional connectivity in the cerebellum and frontal lobe compared with those PD patients without RBD. Finally, longitudinal changes in resting state functional connectivity were found to track with disease progression. Currently, fMRI studies in RBD have demonstrated early signatures of neurodegeneration across both motor and non-motor pathways. Although more work is needed, such findings have the potential to inform our understanding of disease, help to distinguish between prodromal PD and prodromal dementia with Lewy bodies, and support the development of fMRI-based outcome measures of phenoconversion and progression in future disease modifying trials. © 2024 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Lachlan Churchill
- Central Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | - Yu-Chi Chen
- Brain Dynamic Centre, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Simon J G Lewis
- Macquarie Medical School and Macquarie University Centre for Parkinson's Disease Research, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Elie Matar
- Central Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
- Centre for Integrated Research and Understanding of Sleep (CIRUS), Woolcock Institute of Medical Research, Sydney, New South Wales, Australia
- Department of Neurology, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
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Park G, Jo H, Chai Y, Park HR, Lee H, Joo EY, Kim H. Static and dynamic brain morphological changes in isolated REM sleep behavior disorder compared to normal aging. Front Neurosci 2024; 18:1365307. [PMID: 38751861 PMCID: PMC11094219 DOI: 10.3389/fnins.2024.1365307] [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: 01/04/2024] [Accepted: 04/16/2024] [Indexed: 05/18/2024] Open
Abstract
Objective/background To assess whether cerebral structural alterations in isolated rapid eye movement sleep behavior disorder (iRBD) are progressive and differ from those of normal aging and whether they are related to clinical symptoms. Patients/methods In a longitudinal study of 18 patients with iRBD (age, 66.1 ± 5.7 years; 13 males; follow-up, 1.6 ± 0.6 years) and 24 age-matched healthy controls (age, 67.0 ± 4.9 years; 12 males; follow-up, 2.0 ± 0.9 years), all participants underwent multiple extensive clinical examinations, neuropsychological tests, and magnetic resonance imaging at baseline and follow-up. Surface-based cortical reconstruction and automated subcortical structural segmentation were performed on T1-weighted images. We used mixed-effects models to examine the differences between the groups and the differences in anatomical changes over time. Results None of the patients with iRBD demonstrated phenoconversion during the follow-up. Patients with iRBD had thinner cortices in the frontal, occipital, and temporal regions, and more caudate atrophy, compared to that in controls. In similar regions, group-by-age interaction analysis revealed that patients with iRBD demonstrated significantly slower decreases in cortical thickness and caudate volume with aging than that observed in controls. Patients with iRBD had lower scores on the Korean version of the Mini-Mental Status Examination (p = 0.037) and frontal and executive functions (p = 0.049) at baseline than those in controls; however, no significant group-by-age interaction was identified. Conclusion Patients with iRBD show brain atrophy in the regions that are overlapped with the areas that have been documented to be affected in early stages of Parkinson's disease. Such atrophy in iRBD may not be progressive but may be slower than that in normal aging. Cognitive impairment in iRBD is not progressive.
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Affiliation(s)
- Gilsoon Park
- USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States
| | - Hyunjin Jo
- Department of Neurology, Neuroscience Center, Samsung Medical Center, Samsung Biomedical Research Institute, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
- Medical Research Institute, Sungkyunkwan University School of Medicine, Suwon, Republic of Korea
| | - Yaqiong Chai
- USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States
| | - Hea Ree Park
- Department of Neurology, Inje University College of Medicine, Ilsan Paik Hospital, Goyang, Republic of Korea
| | - Hanul Lee
- Department of Neurology, Neuroscience Center, Samsung Medical Center, Samsung Biomedical Research Institute, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Eun Yeon Joo
- Department of Neurology, Neuroscience Center, Samsung Medical Center, Samsung Biomedical Research Institute, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Hosung Kim
- USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States
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Holtbernd F, Hohenfeld C, Oertel WH, Knake S, Sittig E, Romanzetti S, Heidbreder A, Michels J, Dogan I, Schulz JB, Schiefer J, Janzen A, Reetz K. The functional brain connectome in isolated rapid eye movement sleep behavior disorder and Parkinson's disease. Sleep Med 2024; 117:184-191. [PMID: 38555837 DOI: 10.1016/j.sleep.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/29/2024] [Accepted: 03/10/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Isolated rapid-eye-movement behavior disorder (iRBD) often precedes the development of alpha-synucleinopathies such as Parkinson's disease (PD). Magnetic resonance imaging (MRI) studies have revealed structural brain alterations in iRBD partially resembling those observed in PD. However, relatively little is known about whole-brain functional brain alterations in iRBD. Here, we characterize the functional brain connectome of iRBD compared with PD patients and healthy controls (HC) using resting-state functional MRI (rs-fMRI). METHODS Eighteen iRBD subjects (67.3 ± 6.6 years), 18 subjects with PD (65.4 ± 5.8 years), and 39 age- and sex-matched HC (64.4 ± 9.2 years) underwent rs-fMRI at 3 T. We applied a graph theoretical approach to analyze the brain functional connectome at the global and regional levels. Data were analyzed using both frequentist and Bayesian statistics. RESULTS Global connectivity was largely preserved in iRBD and PD individuals. In contrast, both disease groups displayed altered local connectivity mainly in the motor network, temporal cortical regions including the limbic system, and the visual system. There were some group specific alterations, and connectivity changes were pronounced in PD individuals. Overall, however, there was a good agreement of the connectome changes observed in both disease groups. CONCLUSIONS This study provides evidence for widespread functional brain connectivity alterations in iRBD, including motor circuitry, despite normal motor function. Connectome alterations showed substantial resemblance with those observed in PD, underlining a close pathophysiological relationship of iRBD and PD.
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Affiliation(s)
- Florian Holtbernd
- RWTH Aachen University, Department of Neurology, Aachen, Germany; JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Juelich Research Center GmbH and RWTH Aachen University, Aachen, Germany; Institute of Neuroscience and Medicine (INM-4/INM-11), Juelich Research Center, Juelich, Germany
| | - Christian Hohenfeld
- RWTH Aachen University, Department of Neurology, Aachen, Germany; JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Juelich Research Center GmbH and RWTH Aachen University, Aachen, Germany
| | - Wolfgang H Oertel
- Department of Neurology, Philipps-University Marburg, Marburg, Germany
| | - Susanne Knake
- Department of Neurology, Philipps-University Marburg, Marburg, Germany; CMBB, Center for Mind, Brain and Behavior, University Hospital Marburg, Marburg, Germany
| | - Elisabeth Sittig
- Department of Neurology, Philipps-University Marburg, Marburg, Germany
| | - Sandro Romanzetti
- RWTH Aachen University, Department of Neurology, Aachen, Germany; JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Juelich Research Center GmbH and RWTH Aachen University, Aachen, Germany
| | - Anna Heidbreder
- Department of Neurology with Institute of Translational Neurology, University Hospital Muenster, Muenster, Germany; Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Jennifer Michels
- RWTH Aachen University, Department of Neurology, Aachen, Germany; JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Juelich Research Center GmbH and RWTH Aachen University, Aachen, Germany
| | - Imis Dogan
- RWTH Aachen University, Department of Neurology, Aachen, Germany; JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Juelich Research Center GmbH and RWTH Aachen University, Aachen, Germany
| | - Jörg B Schulz
- RWTH Aachen University, Department of Neurology, Aachen, Germany; JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Juelich Research Center GmbH and RWTH Aachen University, Aachen, Germany
| | | | - Annette Janzen
- Department of Neurology, Philipps-University Marburg, Marburg, Germany
| | - Kathrin Reetz
- RWTH Aachen University, Department of Neurology, Aachen, Germany; JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Juelich Research Center GmbH and RWTH Aachen University, Aachen, Germany.
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Donzuso G, Cicero CE, Giuliano L, Squillaci R, Luca A, Palmucci S, Basile A, Lanza G, Ferri R, Zappia M, Nicoletti A. Neuroanatomical findings in isolated REM sleep behavior disorder and early Parkinson's disease: a Voxel-based morphometry study. Brain Imaging Behav 2024; 18:83-91. [PMID: 37897654 PMCID: PMC10844466 DOI: 10.1007/s11682-023-00815-0] [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] [Accepted: 10/15/2023] [Indexed: 10/30/2023]
Abstract
Isolated rapid eye movement (REM) sleep behavior disorder (iRBD) is a parasomnia characterized by loss of physiological atonia of skeletal muscles with abnormal behaviors arising during REM sleep. RBD is often the early manifestation of neurodegenerative diseases, particularly alpha-synucleinopathies, such as Parkinson's disease (PD). Both structural and functional neuroimaging studies suggest that iRBD might share, or even precede, some of the features commonly found in PD, although without a definitive conclusion. Aim of the study is to evaluate the presence of structural abnormalities involving cortical and subcortical areas in PD patients with RBD and iRBD. Patients with video-polysomnographic (VPSG)-confirmed iRBD, and patients with a diagnosis of PD were recruited. In all PD patients, the presence of probable RBD was assessed during the follow-up visits (PD/pRBD). A group of healthy controls (HC) subjects was also recruited. Each subject underwent a structural brain MRI using a 3-D T1-weighted spoiled gradient echo sequence. Twenty-three patients with iRBD, 24 PD/pRBD, and 26 HC were enrolled. Voxel-based morphometry-AnCOVA analysis revealed clusters of grey matter changes in iRBD and PD/pRBD compared to HC in several regions, involving mainly the frontal and temporal regions. The involvement of cortical brain structures associated to the control of sleep cycle and REM stage both in PD/pRBD and iRBD might suggest the presence of a common structural platform linking iRBD and PD, although this pattern may not underlie exclusively RBD-related features. Further longitudinal studies are needed to clarify the patterns of changes occurring at different time points of RBD-related neurodegeneration.
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Affiliation(s)
- Giulia Donzuso
- Department of Medical, Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy
| | - Calogero E Cicero
- Department of Medical, Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy
| | - Loretta Giuliano
- Department of Medical, Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy
| | - Raffaele Squillaci
- Department of Medical, Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy
| | - Antonina Luca
- Department of Medical, Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy
| | - Stefano Palmucci
- Radiodiagnostic and Radiotherapy Unit, University Hospital "Policlinico-San Marco", Via Santa Sofia 78, 95123, Catania, Italy
| | - Antonello Basile
- Radiodiagnostic and Radiotherapy Unit, University Hospital "Policlinico-San Marco", Via Santa Sofia 78, 95123, Catania, Italy
| | - Giuseppe Lanza
- Sleep Research Center, Department of Neurology IC, Oasi Research Institute - IRCCS, Troina, Italy
- Department of Surgery and Medical-Surgical Specialties, University of Catania, 95123, Catania, Italy
| | - Raffaele Ferri
- Sleep Research Center, Department of Neurology IC, Oasi Research Institute - IRCCS, Troina, Italy
| | - Mario Zappia
- Department of Medical, Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy
| | - Alessandra Nicoletti
- Department of Medical, Surgical Sciences and Advanced Technologies "GF Ingrassia", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.
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Rahayel S, Postuma R, Baril AA, Misic B, Pelletier A, Soucy JP, Montplaisir J, Dagher A, Gagnon JF. 99mTc-HMPAO SPECT Perfusion Signatures Associated With Clinical Progression in Patients With Isolated REM Sleep Behavior Disorder. Neurology 2024; 102:e208015. [PMID: 38315966 PMCID: PMC10890831 DOI: 10.1212/wnl.0000000000208015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/03/2023] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Idiopathic/isolated REM sleep behavior disorder (iRBD) is associated with dementia with Lewy bodies and Parkinson disease. Despite evidence of abnormal cerebral perfusion in iRBD, there is currently no pattern that can predict whether an individual will develop dementia with Lewy bodies or Parkinson disease. The objective was to identify a perfusion signature associated with conversion to dementia with Lewy bodies in iRBD. METHODS Patients with iRBD underwent video-polysomnography, neurologic and neuropsychological assessments, and baseline 99mTc-HMPAO SPECT to assess relative cerebral blood flow. Partial least squares correlation was used to identify latent variables that maximized covariance between 27 clinical features and relative gray matter perfusion. Patient-specific scores on the latent variables were used to test the association with conversion to dementia with Lewy bodies compared with that with Parkinson disease. The signature's expression was also assessed in 24 patients with iRBD who underwent a second perfusion scan, 22 healthy controls, and 19 individuals with Parkinson disease. RESULTS Of the 137 participants, 93 underwent SPECT processing, namely 52 patients with iRBD (67.9 years, 73% men), 19 patients with Parkinson disease (67.3 years, 37% men), and 22 controls (67.0 years, 73% men). Of the 47 patients with iRBD followed up longitudinally (4.5 years), 12 (26%) developed a manifest synucleinopathy (4 dementia with Lewy bodies and 8 Parkinson disease). Analysis revealed 2 latent variables between relative blood flow and clinical features: the first was associated with a broad set of features that included motor, cognitive, and perceptual variables, age, and sex; the second was mostly associated with cognitive features and RBD duration. When brought back into the patient's space, the expression of the first variable was associated with conversion to a manifest synucleinopathy, whereas the second was associated with conversion to dementia with Lewy bodies. The expression of the patterns changed over time and was associated with worse motor features. DISCUSSION This study identified a brain perfusion signature associated with cognitive impairment in iRBD and transition to dementia with Lewy bodies. This signature, which can be derived from individual scans, has the potential to be developed into a biomarker that predicts dementia with Lewy bodies in at-risk individuals.
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Affiliation(s)
- Shady Rahayel
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Ronald Postuma
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Andrée-Ann Baril
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Bratislav Misic
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Amélie Pelletier
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Jean-Paul Soucy
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Jacques Montplaisir
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Alain Dagher
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
| | - Jean-François Gagnon
- From the Department of Medicine (S.R., A.-A.B.), University of Montreal; Centre for Advanced Research in Sleep Medicine (S.R., R.P., A.-A.B., A.P., J.M., J.-F.G.), CIUSSS-NÎM - Hôpital du Sacré-Cœur de Montréal; Department of Neurology (R.P., A.P.), Montreal General Hospital; The Neuro (Montreal Neurological Institute-Hospital) (B.M., J.-P.S., A.D.), McGill University; Department of Psychiatry (J.M.), University of Montreal; and Department of Psychology (J.-F.G.), Université du Québec à Montréal, Canada
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Savoie FA, Arpin DJ, Vaillancourt DE. Magnetic Resonance Imaging and Nuclear Imaging of Parkinsonian Disorders: Where do we go from here? Curr Neuropharmacol 2024; 22:1583-1605. [PMID: 37533246 DOI: 10.2174/1570159x21666230801140648] [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: 08/10/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 08/04/2023] Open
Abstract
Parkinsonian disorders are a heterogeneous group of incurable neurodegenerative diseases that significantly reduce quality of life and constitute a substantial economic burden. Nuclear imaging (NI) and magnetic resonance imaging (MRI) have played and continue to play a key role in research aimed at understanding and monitoring these disorders. MRI is cheaper, more accessible, nonirradiating, and better at measuring biological structures and hemodynamics than NI. NI, on the other hand, can track molecular processes, which may be crucial for the development of efficient diseasemodifying therapies. Given the strengths and weaknesses of NI and MRI, how can they best be applied to Parkinsonism research going forward? This review aims to examine the effectiveness of NI and MRI in three areas of Parkinsonism research (differential diagnosis, prodromal disease identification, and disease monitoring) to highlight where they can be most impactful. Based on the available literature, MRI can assist with differential diagnosis, prodromal disease identification, and disease monitoring as well as NI. However, more work is needed, to confirm the value of MRI for monitoring prodromal disease and predicting phenoconversion. Although NI can complement or be a substitute for MRI in all the areas covered in this review, we believe that its most meaningful impact will emerge once reliable Parkinsonian proteinopathy tracers become available. Future work in tracer development and high-field imaging will continue to influence the landscape for NI and MRI.
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Affiliation(s)
- Félix-Antoine Savoie
- Department of Applied Physiology and Kinesiology, Laboratory for Rehabilitation Neuroscience, University of Florida, Gainesville, FL, USA
| | - David J Arpin
- Department of Applied Physiology and Kinesiology, Laboratory for Rehabilitation Neuroscience, University of Florida, Gainesville, FL, USA
| | - David E Vaillancourt
- Department of Applied Physiology and Kinesiology, Laboratory for Rehabilitation Neuroscience, University of Florida, Gainesville, FL, USA
- Department of Neurology, Fixel Institute for Neurological Diseases, University of Florida, Gainesville, FL, USA
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
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Liu J, Zou X, Gu J, Yu Q, Dong Z, Zuo H, Chen X, Du X, Zou D, Han Y, Peng J, Cheng O. Altered connectivity in the cognitive control-related prefrontal cortex in Parkinson's disease with rapid eye movement sleep behavior disorder. Brain Imaging Behav 2023; 17:702-714. [PMID: 37721659 DOI: 10.1007/s11682-023-00796-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2023] [Indexed: 09/19/2023]
Abstract
Rapid eye movement sleep behavior disorder (RBD) frequently occurs in Parkinson's disease (PD), however, the exact pathophysiological mechanism is not clear. The prefrontal cortex (PFC), especially ventrolateral prefrontal cortex (VLPFC), dorsolateral prefrontal cortex (DLPFC), and inferior frontal gyrus (IFG) which may play roles by regulating cognitive control processes. The purpose of this study was to investigate whether there is abnormal functional connectivity (FC) maps and volume changes in PD with RBD(PD-RBD). We recruited 20 PD-RBD, 20 PD without RBD (PD-nRBD), and 20 normal controls (NC). We utilized resting-state functional Magnetic Resonance Imaging (rs-MRI) to explore FC changes based on regions of interest (VLPFC, DLPFC, and IFG), and used voxel-based morphology technology to analyze whole-brain volumes by 3D-T1 structural MRI. Except the REM sleep behavioral disorders questionnaire (RBDSQ), the PD-RBD showed lower visuospatial/executive and attention scores than the NC group. The RBDSQ scores were significantly positively correlated with zFC of right DLPFC to bilateral posterior cingulate cortex (PCC) (P = 0.0362, R = 0.4708, AlphaSim corrected) and also significantly positively correlated with zFC of left VLPFC to right inferior temporal (P = 0.0157, R = 0.5323, AlphaSim corrected) in PD-RBD group. Furthermore, abnormal correlations with zFC values were also found in some cognitive subdomains in PD-RBD group. The study may suggest that in PD-RBD patients, the presence of RBD may be related to the abnormal FC of VLPFC and DLPFC, meanwhile, the abnormal FC of DLPFC and IFG may be related to the mechanisms of cognitive impairment.
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Affiliation(s)
- Jinjing Liu
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
- Department of Rehabilitation Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Xiaoya Zou
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Jinming Gu
- Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Qian Yu
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Zhaoying Dong
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Hongzhou Zuo
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Xiaocui Chen
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Xinyi Du
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Dezhi Zou
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Yu Han
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China
| | - Juan Peng
- Department of Radiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China.
| | - Oumei Cheng
- Department of Neurology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, China.
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Grimaldi S, Guye M, Bianciardi M, Eusebio A. Brain MRI Biomarkers in Isolated Rapid Eye Movement Sleep Behavior Disorder: Where Are We? A Systematic Review. Brain Sci 2023; 13:1398. [PMID: 37891767 PMCID: PMC10604962 DOI: 10.3390/brainsci13101398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
The increasing number of MRI studies focused on prodromal Parkinson's Disease (PD) demonstrates a strong interest in identifying early biomarkers capable of monitoring neurodegeneration. In this systematic review, we present the latest information regarding the most promising MRI markers of neurodegeneration in relation to the most specific prodromal symptoms of PD, namely isolated rapid eye movement (REM) sleep behavior disorder (iRBD). We reviewed structural, diffusion, functional, iron-sensitive, neuro-melanin-sensitive MRI, and proton magnetic resonance spectroscopy studies conducted between 2000 and 2023, which yielded a total of 77 relevant papers. Among these markers, iron and neuromelanin emerged as the most robust and promising indicators for early neurodegenerative processes in iRBD. Atrophy was observed in several regions, including the frontal and temporal cortices, limbic cortices, and basal ganglia, suggesting that neurodegenerative processes had been underway for some time. Diffusion and functional MRI produced heterogeneous yet intriguing results. Additionally, reduced glymphatic clearance function was reported. Technological advancements, such as the development of ultra-high field MRI, have enabled the exploration of minute anatomical structures and the detection of previously undetectable anomalies. The race to achieve early detection of neurodegeneration is well underway.
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Affiliation(s)
- Stephan Grimaldi
- Department of Neurology and Movement Disorders, APHM, Hôpital Universitaire Timone, 265 rue Saint-Pierre, 13005 Marseille, France
- Centre d’Exploration Métabolique par Résonnance Magnétique, Assistance Publique des Hôpitaux de Marseille, Hôpital Universitaire Timone, 265 rue Saint-Pierre, 13005 Marseille, France
- Center for Magnetic Resonance in Biology and Medicine, Aix Marseille University, Centre National de la Recherche Scientifique, 27 Bd Jean Moulin, 13385 Marseille, France
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, 149 13th St., Charlestown, MA 02129, USA
| | - Maxime Guye
- Centre d’Exploration Métabolique par Résonnance Magnétique, Assistance Publique des Hôpitaux de Marseille, Hôpital Universitaire Timone, 265 rue Saint-Pierre, 13005 Marseille, France
- Center for Magnetic Resonance in Biology and Medicine, Aix Marseille University, Centre National de la Recherche Scientifique, 27 Bd Jean Moulin, 13385 Marseille, France
| | - Marta Bianciardi
- Department of Radiology, Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, 149 13th St., Charlestown, MA 02129, USA
- Division of Sleep Medicine, Harvard University, Boston, MA 02114, USA
| | - Alexandre Eusebio
- Department of Neurology and Movement Disorders, APHM, Hôpital Universitaire Timone, 265 rue Saint-Pierre, 13005 Marseille, France
- Institut de Neurosciences de la Timone, Aix Marseille University, Centre National de la Recherche Scientifique, 27 Bd Jean Moulin, 13385 Marseille, France
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9
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Langley J, Hwang KS, Huddleston DE, Hu XP. Nigral volume loss in prodromal, early, and moderate Parkinson's disease. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.08.19.23294281. [PMID: 37645770 PMCID: PMC10462207 DOI: 10.1101/2023.08.19.23294281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
The loss of melanized neurons in the substantia nigra pars compacta (SNc) is a hallmark pathology in Parkinson's disease (PD). Melanized neurons in SNc can be visualized in vivo using magnetization transfer (MT) effects. Nigral volume was extracted in data acquired with a MT-prepared gradient echo sequence in 33 controls, 83 non-manifest carriers (42 LRRK2 and 41 GBA nonmanifest carriers), 65 prodromal hyposmic participants, 105 de novo PD patients and 26 48-month PD patients from the Parkinson's Progressive Markers Initiative. No difference in nigral volume was seen between controls and LRRK2 and GBA non-manifest carriers (F=0.076; P=0.927). A significant main effect in group was observed between controls, prodromal hyposmic participants, and overt PD patients (F=5.192; P=0.002). Longer disease duration significantly correlated with lower nigral volume (r=-0.252; P=0.010). This study shows that nigral depigmentation can be robustly detected in prodromal hyposmic participants and overt PD patients.
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Affiliation(s)
- Jason Langley
- Center for Advanced Neuroimaging, University of California Riverside, Riverside, CA, USA
| | - Kristy S. Hwang
- Department of Neurosciences, University of California San Diego, San Diego, CA, USA
| | | | - Xiaoping P. Hu
- Center for Advanced Neuroimaging, University of California Riverside, Riverside, CA, USA
- Department of Bioengineering, University of California Riverside, Riverside, CA, USA
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10
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Rahayel S, Tremblay C, Vo A, Misic B, Lehéricy S, Arnulf I, Vidailhet M, Corvol JC, Gagnon JF, Postuma RB, Montplaisir J, Lewis S, Matar E, Ehgoetz Martens K, Borghammer P, Knudsen K, Hansen AK, Monchi O, Gan-Or Z, Dagher A. Mitochondrial function-associated genes underlie cortical atrophy in prodromal synucleinopathies. Brain 2023; 146:3301-3318. [PMID: 36826230 PMCID: PMC10393413 DOI: 10.1093/brain/awad044] [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: 09/20/2022] [Revised: 01/12/2023] [Accepted: 02/03/2023] [Indexed: 02/25/2023] Open
Abstract
Isolated rapid eye movement sleep behaviour disorder (iRBD) is a sleep disorder characterized by the loss of rapid eye movement sleep muscle atonia and the appearance of abnormal movements and vocalizations during rapid eye movement sleep. It is a strong marker of incipient synucleinopathy such as dementia with Lewy bodies and Parkinson's disease. Patients with iRBD already show brain changes that are reminiscent of manifest synucleinopathies including brain atrophy. However, the mechanisms underlying the development of this atrophy remain poorly understood. In this study, we performed cutting-edge imaging transcriptomics and comprehensive spatial mapping analyses in a multicentric cohort of 171 polysomnography-confirmed iRBD patients [67.7 ± 6.6 (49-87) years; 83% men] and 238 healthy controls [66.6 ± 7.9 (41-88) years; 77% men] with T1-weighted MRI to investigate the gene expression and connectivity patterns associated with changes in cortical thickness and surface area in iRBD. Partial least squares regression was performed to identify the gene expression patterns underlying cortical changes in iRBD. Gene set enrichment analysis and virtual histology were then done to assess the biological processes, cellular components, human disease gene terms, and cell types enriched in these gene expression patterns. We then used structural and functional neighbourhood analyses to assess whether the atrophy patterns in iRBD were constrained by the brain's structural and functional connectome. Moreover, we used comprehensive spatial mapping analyses to assess the specific neurotransmitter systems, functional networks, cytoarchitectonic classes, and cognitive brain systems associated with cortical changes in iRBD. All comparisons were tested against null models that preserved spatial autocorrelation between brain regions and compared to Alzheimer's disease to assess the specificity of findings to synucleinopathies. We found that genes involved in mitochondrial function and macroautophagy were the strongest contributors to the cortical thinning occurring in iRBD. Moreover, we demonstrated that cortical thinning was constrained by the brain's structural and functional connectome and that it mapped onto specific networks involved in motor and planning functions. In contrast with cortical thickness, changes in cortical surface area were related to distinct genes, namely genes involved in the inflammatory response, and to different spatial mapping patterns. The gene expression and connectivity patterns associated with iRBD were all distinct from those observed in Alzheimer's disease. In summary, this study demonstrates that the development of brain atrophy in synucleinopathies is constrained by specific genes and networks.
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Affiliation(s)
- Shady Rahayel
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Canada
| | - Christina Tremblay
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
| | - Andrew Vo
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
| | - Bratislav Misic
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
| | - Stéphane Lehéricy
- Institut du Cerveau–Paris Brain Institute–ICM, INSERM, CNRS, Sorbonne Université, Paris 75013, France
| | - Isabelle Arnulf
- Institut du Cerveau–Paris Brain Institute–ICM, INSERM, CNRS, Sorbonne Université, Paris 75013, France
| | - Marie Vidailhet
- Institut du Cerveau–Paris Brain Institute–ICM, INSERM, CNRS, Sorbonne Université, Paris 75013, France
| | - Jean-Christophe Corvol
- Institut du Cerveau–Paris Brain Institute–ICM, INSERM, CNRS, Sorbonne Université, Paris 75013, France
| | - Jean-François Gagnon
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Canada
- Department of Psychology, University of Quebec in Montreal, Montreal H2X 3P2, Canada
- Research Centre, Institut universitaire de gériatrie de Montréal, Montreal H3W 1W5, Canada
| | - Ronald B Postuma
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Canada
- Department of Neurology, Montreal General Hospital, Montreal H3G 1A4, Canada
| | - Jacques Montplaisir
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Canada
- Department of Psychiatry, University of Montreal, Montreal H3T 1J4, Canada
| | - Simon Lewis
- ForeFront Parkinson’s Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown NSW 2050, Australia
| | - Elie Matar
- ForeFront Parkinson’s Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown NSW 2050, Australia
| | - Kaylena Ehgoetz Martens
- ForeFront Parkinson’s Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown NSW 2050, Australia
- Department of Kinesiology, University of Waterloo, Waterloo N2L 3G1, Canada
| | - Per Borghammer
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Karoline Knudsen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Allan K Hansen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Oury Monchi
- Research Centre, Institut universitaire de gériatrie de Montréal, Montreal H3W 1W5, Canada
- Department of Radiology, Radio-Oncology, and Nuclear Medicine, University of Montreal, Montreal H3T 1A4, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal H3A 1A1, Canada
| | - Ziv Gan-Or
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal H3A 1A1, Canada
- Department of Human Genetics, McGill University, Montreal H3A 0C7, Canada
| | - Alain Dagher
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal H3A 1A1, Canada
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11
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Karpodini CC, Tsatalas T, Giannakopoulos I, Romare M, Giakas G, Tsaklis PV, Dinas PC, Haas AN, Papageorgiou SG, Angelopoulou E, Wyon MA, Koutedakis Y. The Effects of a Single Session of a Rhythmic Movement Program on Selected Biopsychological Parameters in PD Patients: A Methodological Approach. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1408. [PMID: 37629698 PMCID: PMC10456488 DOI: 10.3390/medicina59081408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/20/2023] [Accepted: 07/29/2023] [Indexed: 08/27/2023]
Abstract
The aim of the present study is to examine the acute effects of a specially designed musicokinetic (MSK) program for patients with Parkinson's disease (PD) on (a) anxiety levels, (b) select kinematic and kinetic parameters, and (c) frontal cortex hemodynamic responses, during gait initiation and steady-state walking. Methods: This is a blind cross-over randomized control trial (RCT) in which 13 volunteers with PD will attend a 45 min MSK program under the following conditions: (a) a synchronous learning format and (b) an asynchronous remote video-based format. Changes in gait biomechanics and frontal cortex hemodynamic responses will be examined using a 10-camera 3D motion analysis (Vicon T-series, Oxford, UK), and a functional near-infrared spectroscopy (f-NIRS-Portalite, Artinis NL) system, respectively, while anxiety levels will be evaluated using the Hamilton Anxiety Rating Scale. Expected results: Guided by the rules of music, where periodicity is distinct, our specially designed MSK program may eventually be beneficial in improving motor difficulties and, hence, reducing anxiety. The combined implementation of f-NIRS in parallel with 3D gait analysis has yet to be evaluated in Parkinsonian patients following a MSK intervention. It is expected that the aforementioned intervention, through better rhythmicity, may improve the automatization of motor control, gait kinematics, and kinetics-supported by decreased frontal cortex hemodynamic activity-which may be linked to reduced anxiety levels.
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Affiliation(s)
- Claire Chrysanthi Karpodini
- Sport and Physical Activity Research Centre, Faculty of Education, Health and Wellbeing, University of Wolverhampton, Wolverhampton WV1 1LY, UK;
| | - Themistoklis Tsatalas
- Department of Physical Education and Sport Science, University of Thessaly, 421 00 Trikala, Greece; (T.T.); (P.V.T.)
| | - Ioannis Giannakopoulos
- Department of Physical Education and Sport Science, University of Thessaly, 421 00 Trikala, Greece; (T.T.); (P.V.T.)
| | - Mattias Romare
- Department of Physical Education and Sport Science, University of Thessaly, 421 00 Trikala, Greece; (T.T.); (P.V.T.)
| | - Giannis Giakas
- Department of Physical Education and Sport Science, University of Thessaly, 421 00 Trikala, Greece; (T.T.); (P.V.T.)
| | - Panagiotis V. Tsaklis
- Department of Physical Education and Sport Science, University of Thessaly, 421 00 Trikala, Greece; (T.T.); (P.V.T.)
- Department of Molecular Medicine and Surgery, Karolinska Institute, 171 65 Solna, Sweden
| | - Petros C. Dinas
- Department of Physical Education and Sport Science, University of Thessaly, 421 00 Trikala, Greece; (T.T.); (P.V.T.)
| | - Aline Nogueira Haas
- School of Physical Education Physiotherapy and Dance, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 91410-000, Brazil
| | - Sokratis G. Papageorgiou
- First Department of Neurology, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, 115 28 Athens, Greece
| | - Efthalia Angelopoulou
- First Department of Neurology, Medical School, National and Kapodistrian University of Athens, Eginition University Hospital, 115 28 Athens, Greece
| | - Matthew A. Wyon
- Sport and Physical Activity Research Centre, Faculty of Education, Health and Wellbeing, University of Wolverhampton, Wolverhampton WV1 1LY, UK;
| | - Yiannis Koutedakis
- Department of Physical Education and Sport Science, University of Thessaly, 421 00 Trikala, Greece; (T.T.); (P.V.T.)
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12
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Koeglsperger T, Rumpf SL, Schließer P, Struebing FL, Brendel M, Levin J, Trenkwalder C, Höglinger GU, Herms J. Neuropathology of incidental Lewy body & prodromal Parkinson's disease. Mol Neurodegener 2023; 18:32. [PMID: 37173733 PMCID: PMC10182593 DOI: 10.1186/s13024-023-00622-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD) is a progressive neurodegenerative disorder associated with a loss of dopaminergic (DA) neurons. Despite symptomatic therapies, there is currently no disease-modifying treatment to halt neuronal loss in PD. A major hurdle for developing and testing such curative therapies results from the fact that most DA neurons are already lost at the time of the clinical diagnosis, rendering them inaccessible to therapy. Understanding the early pathological changes that precede Lewy body pathology (LBP) and cell loss in PD will likely support the identification of novel diagnostic and therapeutic strategies and help to differentiate LBP-dependent and -independent alterations. Several previous studies identified such specific molecular and cellular changes that occur prior to the appearance of Lewy bodies (LBs) in DA neurons, but a concise map of such early disease events is currently missing. METHODS Here, we conducted a literature review to identify and discuss the results of previous studies that investigated cases with incidental Lewy body disease (iLBD), a presumed pathological precursor of PD. RESULTS Collectively, our review demonstrates numerous cellular and molecular neuropathological changes occurring prior to the appearance of LBs in DA neurons. CONCLUSIONS Our review provides the reader with a summary of early pathological events in PD that may support the identification of novel therapeutic and diagnostic targets and aid to the development of disease-modifying strategies in PD.
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Affiliation(s)
- Thomas Koeglsperger
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany.
- Department of Translational Brain Research, DZNE-German Center for Neurodegenerative Diseases, 81377, Munich, Germany.
| | - Svenja-Lotta Rumpf
- Department of Translational Brain Research, DZNE-German Center for Neurodegenerative Diseases, 81377, Munich, Germany
| | - Patricia Schließer
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Felix L Struebing
- Department of Translational Brain Research, DZNE-German Center for Neurodegenerative Diseases, 81377, Munich, Germany
- Centre for Neuropathology and Prion Research, LMU Munich, Munich, Germany
| | - Matthias Brendel
- Department of Translational Brain Research, DZNE-German Center for Neurodegenerative Diseases, 81377, Munich, Germany
- Department of Nuclear Medicine, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), 81377, Munich, Germany
| | - Johannes Levin
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), 81377, Munich, Germany
- Clinical Study Unit, DZNE - German Center for Neurodegenerative Diseases, 81377, Munich, Germany
| | - Claudia Trenkwalder
- Paracelsus-Elena Klinik, Kassel, Germany
- Department of Neurosurgery, University Medical Center Goettingen, Goettingen, Germany
| | - Günter U Höglinger
- Department of Neurology, LMU University Hospital, LMU Munich, Munich, Germany
- Department of Neurology, Medizinische Hochschule Hannover (MHH), Hannover, Germany
| | - Jochen Herms
- Department of Translational Brain Research, DZNE-German Center for Neurodegenerative Diseases, 81377, Munich, Germany
- Centre for Neuropathology and Prion Research, LMU Munich, Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), 81377, Munich, Germany
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13
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Ota Y, Kanel P, Bohnen N. Imaging of sleep disorders in pre-Parkinsonian syndromes. Curr Opin Neurol 2022; 35:443-452. [PMID: 35788559 PMCID: PMC9308698 DOI: 10.1097/wco.0000000000001084] [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] [Indexed: 11/26/2022]
Abstract
PURPOSE OF REVIEW Neuroimaging has been advanced in the last years and enabled clinicians to evaluate sleep disorders, especially isolated rapid eye movement sleep disorder (iRBD), which can be seen in alpha-synucleinopathies. iRBD is the best prodromal clinical marker for phenoconversion to these neurodegenerative diseases. This review aims to provide an update on advanced neuroimaging biomarkers in iRBD. RECENT FINDINGS Advanced structural MRI techniques, such as diffusion tensor imaging and functional MRI, neuromelanin-sensitive MRI, and scintigraphic neuroimaging such as cholinergic PET, dopamine transporter imaging - single-photon emission computerized tomography, perfusional single-photon emission computerized tomography, and cardiac metaiodobenzylguanidine can provide diagnostic and prognostic imaging biomarkers for iRBD, in isolation and more robustly when combined. SUMMARY New advanced neuroimaging can provide imaging biomarkers and aid in the appropriate clinical assessment and future therapeutic trials.
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Affiliation(s)
- Yoshiaki Ota
- The Division of Neuroradiology, Department of Radiology, University of Michigan, Ann Arbor, MI, USA
| | - Prabesh Kanel
- The Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI, USA
- Morris K. Udall Center of Excellence for Parkinson’s Disease Research, University of Michigan, Ann Arbor, MI, USA
- University of Michigan Parkinson’s Foundation Research Center of Excellence, Ann Arbor, MI, USA
| | - Nicolaas Bohnen
- The Division of Nuclear Medicine, Department of Radiology, University of Michigan, Ann Arbor, MI, USA
- Morris K. Udall Center of Excellence for Parkinson’s Disease Research, University of Michigan, Ann Arbor, MI, USA
- University of Michigan Parkinson’s Foundation Research Center of Excellence, Ann Arbor, MI, USA
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
- GRECC & Neurology Service, VAAAHS, Ann Arbor, MI, USA
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14
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Chen A, Li Y, Wang Z, Huang J, Ruan X, Cheng X, Huang X, Liang D, Chen D, Wei X. Disrupted Brain Structural Network Connection in de novo Parkinson's Disease With Rapid Eye Movement Sleep Behavior Disorder. Front Hum Neurosci 2022; 16:902614. [PMID: 35927996 PMCID: PMC9344802 DOI: 10.3389/fnhum.2022.902614] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/22/2022] [Indexed: 11/23/2022] Open
Abstract
Objective To explore alterations in white matter network topology in de novo Parkinson's disease (PD) patients with rapid eye movement sleep behavior disorder (RBD). Materials and Methods This study included 171 de novo PD patients and 73 healthy controls (HC) recruited from the Parkinson's Progression Markers Initiative (PPMI) database. The patients were divided into two groups, PD with probable RBD (PD-pRBD, n = 74) and PD without probable RBD (PD-npRBD, N = 97), according to the RBD screening questionnaire (RBDSQ). Individual structural network of brain was constructed based on deterministic fiber tracking and analyses were performed using graph theory. Differences in global and nodal topological properties were analyzed among the three groups. After that, post hoc analyses were performed to explore further differences. Finally, correlations between significant different properties and RBDSQ scores were analyzed in PD-pRBD group. Results All three groups presented small-world organization. PD-pRBD patients exhibited diminished global efficiency and increased shortest path length compared with PD-npRBD patients and HCs. In nodal property analyses, compared with HCs, the brain regions of the PD-pRBD group with changed nodal efficiency (Ne) were widely distributed mainly in neocortical and paralimbic regions. While compared with PD-npRBD group, only increased Ne in right insula, left middle frontal gyrus, and decreased Ne in left temporal pole were discovered. In addition, significant correlations between Ne in related brain regions and RDBSQ scores were detected in PD-pRBD patients. Conclusions PD-pRBD patients showed disrupted topological organization of white matter in the whole brain. The altered Ne of right insula, left temporal pole and left middle frontal gyrus may play a key role in the pathogenesis of PD-RBD.
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Affiliation(s)
- Amei Chen
- Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Yuting Li
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Zhaoxiu Wang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Junxiang Huang
- Department of Anesthesiology, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Xiuhang Ruan
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Xiaofang Cheng
- Department of Radiology, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaofei Huang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Dan Liang
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Dandan Chen
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Xinhua Wei
- Department of Radiology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Department of Radiology, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- *Correspondence: Xinhua Wei
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15
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Oltra J, Uribe C, Segura B, Campabadal A, Inguanzo A, Monté-Rubio GC, Pardo J, Marti MJ, Compta Y, Valldeoriola F, Junque C, Iranzo A. Brain atrophy pattern in de novo Parkinson's disease with probable RBD associated with cognitive impairment. NPJ Parkinsons Dis 2022; 8:60. [PMID: 35610256 PMCID: PMC9130201 DOI: 10.1038/s41531-022-00326-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 04/27/2022] [Indexed: 11/17/2022] Open
Abstract
Rapid eye movement sleep behavior disorder (RBD) is associated with high likelihood of prodromal Parkinson’s disease (PD) and is common in de novo PD. It is associated with greater cognitive impairment and brain atrophy. However, the relation between structural brain characteristics and cognition remains poorly understood. We aimed to investigate subcortical and cortical atrophy in de novo PD with probable RBD (PD-pRBD) and to relate it with cognitive impairment. We analyzed volumetry, cortical thickness, and cognitive measures from 79 PD-pRBD patients, 126 PD without probable RBD patients (PD-non pRBD), and 69 controls from the Parkinson’s Progression Markers Initiative (PPMI). Regression models of cognition were tested using magnetic resonance imaging measures as predictors. We found lower left thalamus volume in PD-pRBD compared with PD-non pRBD. Compared with controls, PD-pRBD group showed atrophy in the bilateral putamen, left hippocampus, left amygdala, and thinning in the right superior temporal gyrus. Specific deep gray matter nuclei volumes were associated with impairment in global cognition, phonemic fluency, processing speed, and visuospatial function in PD-pRBD. In conclusion, cognitive impairment and gray matter atrophy are already present in de novo PD-pRBD. Thalamus, hippocampus, and putamen volumes were mainly associated with these cognitive deficits.
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Affiliation(s)
- Javier Oltra
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain.,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - Carme Uribe
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain.,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.,Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), University of Toronto, Toronto, Ontario, Canada
| | - Barbara Segura
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain. .,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain. .,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED: CB06/05/0018-ISCIII), Barcelona, Catalonia, Spain.
| | - Anna Campabadal
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain.,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - Anna Inguanzo
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain.,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - Gemma C Monté-Rubio
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain.,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - Jèssica Pardo
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain.,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - Maria J Marti
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED: CB06/05/0018-ISCIII), Barcelona, Catalonia, Spain.,Parkinson's Disease & Movement Disorders Unit, Neurology Service, Hospital Clínic de Barcelona, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain
| | - Yaroslau Compta
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED: CB06/05/0018-ISCIII), Barcelona, Catalonia, Spain.,Parkinson's Disease & Movement Disorders Unit, Neurology Service, Hospital Clínic de Barcelona, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain
| | - Francesc Valldeoriola
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED: CB06/05/0018-ISCIII), Barcelona, Catalonia, Spain.,Parkinson's Disease & Movement Disorders Unit, Neurology Service, Hospital Clínic de Barcelona, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain
| | - Carme Junque
- Medical Psychology Unit, Department of Medicine, Institute of Neurosciences, University of Barcelona, Barcelona, Catalonia, Spain.,Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED: CB06/05/0018-ISCIII), Barcelona, Catalonia, Spain
| | - Alex Iranzo
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.,Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED: CB06/05/0018-ISCIII), Barcelona, Catalonia, Spain.,Multidisciplinary Sleep Disorders Unit, Neurology Service, Hospital Clínic de Barcelona, Barcelona, Catalonia, Spain
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16
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Rahayel S, Tremblay C, Vo A, Zheng YQ, Lehéricy S, Arnulf I, Vidailhet M, Corvol JC, Gagnon JF, Postuma RB, Montplaisir J, Lewis S, Matar E, Ehgoetz Martens K, Borghammer P, Knudsen K, Hansen A, Monchi O, Misic B, Dagher A. Brain atrophy in prodromal synucleinopathy is shaped by structural connectivity and gene expression. Brain 2022; 145:3162-3178. [PMID: 35594873 DOI: 10.1093/brain/awac187] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 05/06/2022] [Accepted: 05/12/2022] [Indexed: 11/14/2022] Open
Abstract
Isolated REM sleep behaviour disorder (iRBD) is a synucleinopathy characterized by abnormal behaviours and vocalizations during REM sleep. Most iRBD patients develop dementia with Lewy bodies, Parkinson's disease, or multiple system atrophy over time. Patients with iRBD exhibit brain atrophy patterns that are reminiscent of those observed in overt synucleinopathies. However, the mechanisms linking brain atrophy to the underlying alpha-synuclein pathophysiology are poorly understood. Our objective was to investigate how the prion-like and regional vulnerability hypotheses of alpha-synuclein might explain brain atrophy in iRBD. Using a multicentric cohort of 182 polysomnography-confirmed iRBD patients who underwent T1-weighted MRI, we performed vertex-based cortical surface and deformation-based morphometry analyses to quantify brain atrophy in patients (67.8 years, 84% men) and 261 healthy controls (66.2 years, 75%) and investigated the morphological correlates of motor and cognitive functioning in iRBD. Next, we applied the agent-based Susceptible-Infected-Removed model (i.e., a computational model that simulates in silico the spread of pathologic alpha-synuclein based on structural connectivity and gene expression) and tested if it recreated atrophy in iRBD by statistically comparing simulated regional brain atrophy to the atrophy observed in patients. The impact of SNCA and GBA gene expression and brain connectivity was then evaluated by comparing the model fit to the one obtained in null models where either gene expression or connectivity was randomized. The results showed that iRBD patients present with cortical thinning and tissue deformation, which correlated with motor and cognitive functioning. Next, we found that the computational model recreated cortical thinning (r = 0.51, p = 0.0007) and tissue deformation (r = 0.52, p = 0.0005) in patients, and that the connectome's architecture along with SNCA and GBA gene expression contributed to shaping atrophy in iRBD. We further demonstrated that the full agent-based model performed better than network measures or gene expression alone in recreating the atrophy pattern in iRBD. In summary, atrophy in iRBD is extensive, correlates with motor and cognitive function, and can be recreated using the dynamics of agent-based modelling, structural connectivity, and gene expression. These findings support the concepts that both prion-like spread and regional susceptibility account for the atrophy observed in prodromal synucleinopathies. Therefore, the agent-based Susceptible-Infected-Removed model may be a useful tool for testing hypotheses underlying neurodegenerative diseases and new therapies aimed at slowing or stopping the spread of alpha-synuclein pathology.
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Affiliation(s)
- Shady Rahayel
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada.,Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Montreal, Canada
| | - Christina Tremblay
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
| | - Andrew Vo
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
| | - Ying-Qiu Zheng
- Wellcome Centre for Integrative Neuroimaging, Centre for Functional Magnetic Resonance Imaging of the Brain, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom
| | - Stéphane Lehéricy
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM, CNRS, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Paris 75013, France
| | - Isabelle Arnulf
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM, CNRS, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Paris 75013, France
| | - Marie Vidailhet
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM, CNRS, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Paris 75013, France
| | - Jean-Christophe Corvol
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, INSERM, CNRS, Assistance Publique Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Paris 75013, France
| | | | - Jean-François Gagnon
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Montreal, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal H2X 3P2, Canada.,Research Centre, Institut universitaire de gériatrie de Montréal, Montreal H3W 1W5, Canada
| | - Ronald B Postuma
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Montreal, Canada.,Department of Neurology, Montreal General Hospital, Montreal H3G 1A4, Canada
| | - Jacques Montplaisir
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal H4J 1C5, Montreal, Canada.,Department of Psychiatry, Université de Montréal, Montreal H3 T 1J4, Canada
| | - Simon Lewis
- ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown NSW 2050, Australia
| | - Elie Matar
- ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown NSW 2050, Australia
| | - Kaylena Ehgoetz Martens
- ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown NSW 2050, Australia.,Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo N2L 3G1, Canada
| | - Per Borghammer
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Karoline Knudsen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Allan Hansen
- Department of Nuclear Medicine and PET, Aarhus University Hospital, Aarhus DK-8200, Denmark
| | - Oury Monchi
- Research Centre, Institut universitaire de gériatrie de Montréal, Montreal H3W 1W5, Canada.,Departments of Clinical Neurosciences, Radiology, and Hotchkiss Brain Institute, University of Calgary, Calgary T2N 4N1, Canada
| | - Bratislav Misic
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
| | - Alain Dagher
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal H3A 2B4, Canada
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17
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Paulekiene G, Pajarskiene M, Pajediene E, Radziunas A. Sleep Dysfunction and Grey Matter Volume. Curr Neurol Neurosci Rep 2022; 22:275-283. [PMID: 35364772 DOI: 10.1007/s11910-022-01190-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW With the voxel-based morphometry (VBM), structural imaging studies turned into new directions aiming to explore neurological disorders differently. This approach helps identify possible pathophysiological correlations between neuroanatomical grey matter (GM) structures in patients with sleep dysfunction. This article reviews recent findings on GM structure in various sleep disorders and possible causes of disturbed sleep and discusses the future perspectives. RECENT FINDINGS At present, research on the effect of GM volume changes in specific brain areas on the pathogenesis of sleep disturbances is incomplete. It remains unknown if the GM thickness reduction in patients with REM sleep behaviour disorder, obstructive sleep apnea, restless legs syndrome, and insomnia is due to complex disease presentation or direct response to disturbed sleep. Additionally, many VBM studies have yielded inconsistent results showing either reduction or increase in GM. The spatiotemporal complexity of whole-brain networks and state transitions during sleep and the role of GM changes increase new debates. Having multimodal data from large sample studies can help model sleep network dynamics in different disorders and provide novel data for possible therapeutic interventions.
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Affiliation(s)
- Gintare Paulekiene
- Department of Neurology, Medical Academy, Lithuanian University of Health Sciences, Kaunas , Lithuania
| | - Milda Pajarskiene
- Department of Neurology, Medical Academy, Lithuanian University of Health Sciences, Kaunas , Lithuania
| | - Evelina Pajediene
- Department of Neurology, Medical Academy, Lithuanian University of Health Sciences, Kaunas , Lithuania.
| | - Andrius Radziunas
- Department of Neurosurgery, Medical Academy, Lithuanian University of Health Sciences , Kaunas, Lithuania
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18
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Ehgoetz Martens KA, Matar E, Phillips JR, Shine JM, Grunstein RR, Halliday GM, Lewis SJG. Narrow doorways alter brain connectivity and step patterns in isolated REM sleep behaviour disorder. Neuroimage Clin 2022; 33:102958. [PMID: 35151040 PMCID: PMC8844611 DOI: 10.1016/j.nicl.2022.102958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 11/19/2022]
Abstract
iRBD had slower and more variable stepping compared to controls in this VR task. iRBD showed exaggerated responses when passing narrow compared to wide doorways iRBD had altered task-related brain connectivity which was correlated to motor deficits.
Background Motor impairments in those with isolated REM sleep behaviour disorder (iRBD) significantly increases the likelihood of developing Lewy body disease (e.g. Parkinson’s disease and Dementia with Lewy Bodies). Objective This study sought to explore the prodromal process of neurodegeneration by examining the neural signature underlying motor deficits in iRBD patients. Methods A virtual reality (VR) gait paradigm (which has previously been shown to elicit adaptive changes in gait performance whilst navigating doorways in Parkinson’s Disease - PD) was paired with fMRI to investigate whether iRBD patients demonstrated worsened motor performance and altered connectivity across frontoparietal, motor and basal ganglia networks compared to healthy controls. Forty participants (23 iRBD and 17 healthy controls) completed the virtual reality gait task whilst in the MRI scanner, and an additional cohort of 19 Early PD patients completed the behavioural virtual reality gait task. Results As predicted, iRBD patients demonstrated slower and more variable stepping compared to healthy control participants and demonstrated an exaggerated response when navigating narrow compared to wide doorways, a phenomenon characteristically seen in PD. The iRBD patients also demonstrated less BOLD signal change in the left posterior putamen and right mesencephalic locomotor region, as well as reduced functional connectivity between the frontoparietal network and the motor network, when navigating narrow versus wide doorways compared to healthy control participants. Conclusions Taken together, this study demonstrates that iRBD patients have altered task-related brain connectivity, which may represent the neural underpinnings of early motor impairments that are evident in iRBD.
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Affiliation(s)
- Kaylena A Ehgoetz Martens
- ForeFront Research Team, Brain and Mind Centre, University of Sydney, Australia; Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Australia; Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Canada.
| | - Elie Matar
- ForeFront Research Team, Brain and Mind Centre, University of Sydney, Australia; Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Australia; Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Canada
| | - Joseph R Phillips
- ForeFront Research Team, Brain and Mind Centre, University of Sydney, Australia; Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Australia; School of Social Sciences and Psychology, Western Sydney University, Sydney, Australia
| | - James M Shine
- ForeFront Research Team, Brain and Mind Centre, University of Sydney, Australia; Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Australia
| | - Ron R Grunstein
- ForeFront Research Team, Brain and Mind Centre, University of Sydney, Australia; Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Canada
| | - Glenda M Halliday
- ForeFront Research Team, Brain and Mind Centre, University of Sydney, Australia
| | - Simon J G Lewis
- ForeFront Research Team, Brain and Mind Centre, University of Sydney, Australia; Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Australia; Department of Kinesiology and Health Sciences, University of Waterloo, Waterloo, Canada; Sleep and Circadian Group (CIRUS), Woolcock Institute of Medical Research, University of Sydney and Royal Prince Alfred Hospital, Australia
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19
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Chen J, Zhou L, Jiang C, Chen Z, Zhang L, Zhou H, Kang W, Jiang X, Li Y, Luo N, Yao M, Niu M, Chen S, Zuo XN, Li L, Liu J. Impaired Ocular Tracking and Cortical Atrophy in Idiopathic Rapid Eye Movement Sleep Behavior Disorder. Mov Disord 2022; 37:972-982. [PMID: 35107831 DOI: 10.1002/mds.28931] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 12/14/2021] [Accepted: 12/17/2021] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Idiopathic rapid eye movement sleep behavior disorder (iRBD) is a prodromal stage of synucleinopathies. Patients with synucleinopathies frequently display eye movement abnormalities. However, whether patients with iRBD have eye movement abnormalities remains unknown. OBJECTIVE The aim of this study was to assess eye movement abnormalities and related gray matter alterations and explore whether such abnormalities can serve as biomarkers to indicate phenoconversion to synucleinopathies in iRBD. METHODS Forty patients with iRBD with early disease progression and 35 healthy control subjects participated in a 15-minute ocular-tracking task that evaluated their control of eye movement abilities. They also underwent clinical assessments for olfactory function, nonmotor symptoms, and autonomic symptoms, all of which are biomarkers to predict phenoconversion to synucleinopathies in iRBD. A subgroup of the participants (20 patients with iRBD and 20 healthy control subjects) also participated in structural magnetic resonance imaging. RESULTS The ocular-tracking ability in patients with iRBD was inferior to that of healthy control subjects in two aspects: pursuit initiation and steady-state tracking. Cortical thinning in the right visual area V4 in patients with iRBD is coupled with impaired pursuit initiation. Furthermore, prolonged pursuit initiation in patients with iRBD exhibits a trend of correlation with olfactory loss, the earliest biomarker that develops prior to other prodromal biomarkers. CONCLUSIONS We found ocular-tracking abnormalities in patients with iRBD even early in their disease progression that have not been reported before. These abnormalities are coupled with atrophy of brain areas involved in the perception of object motion and might indicate phenoconversion to synucleinopathies in iRBD. © 2022 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Jing Chen
- Faculty of Arts and Science, New York University Shanghai, Shanghai, China
- NYU-ECNU Institute of Brain and Cognitive Science at New York University Shanghai, Shanghai, China
- Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai, China
| | - Liche Zhou
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Jiang
- Developmental Population Neuroscience Research Center, IDG/McGovern Institute for Brain Research, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, China
| | - Zhichun Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lina Zhang
- Department of Biostatistics, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Haiyan Zhou
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenyan Kang
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xufeng Jiang
- Department of Nuclear Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanyuan Li
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ningdi Luo
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengsha Yao
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengyue Niu
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shengdi Chen
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xi-Nian Zuo
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Li
- Faculty of Arts and Science, New York University Shanghai, Shanghai, China
- NYU-ECNU Institute of Brain and Cognitive Science at New York University Shanghai, Shanghai, China
- Key Laboratory of Brain Functional Genomics, East China Normal University, Shanghai, China
| | - Jun Liu
- Department of Neurology and Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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20
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Felix C, Chahine LM, Hengenius J, Chen H, Rosso AL, Zhu X, Cao Z, Rosano C. Diffusion Tensor Imaging of the Olfactory System in Older Adults With and Without Hyposmia. Front Aging Neurosci 2021; 13:648598. [PMID: 34744681 PMCID: PMC8569942 DOI: 10.3389/fnagi.2021.648598] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 06/21/2021] [Indexed: 11/15/2022] Open
Abstract
Objectives: To compare gray matter microstructural characteristics of higher-order olfactory regions among older adults with and without hyposmia. Methods: Data from the Brief Smell Identification Test (BSIT) were obtained in 1998–99 for 265 dementia-free adults from the Health, Aging, and Body Composition study (age at BSIT: 74.9 ± 2.7; 62% White; 43% male) who received 3T diffusion tensor imaging in 2006–08 [Interval of time: mean (SD): 8.01 years (0.50)], Apolipoprotein (ApoEε4) genotypes, and repeated 3MS assessments until 2011–12. Cognitive status (mild cognitive impairment, dementia, normal cognition) was adjudicated in 2011–12. Hyposmia was defined as BSIT ≤ 8. Microstructural integrity was quantified by mean diffusivity (MD) in regions of the primary olfactory cortex amygdala, orbitofrontal cortex (including olfactory cortex, gyrus rectus, the orbital parts of the superior, middle, and inferior frontal gyri, medial orbital part of the superior frontal gyrus), and hippocampus. Multivariable regression models were adjusted for total brain atrophy, demographics, cognitive status, and ApoEε4 genotype. Results: Hyposmia in 1998–99 (n = 57, 21.59%) was significantly associated with greater MD in 2006–08, specifically in the orbital part of the middle frontal gyrus, and amygdala, on the right [adjusted beta (p value): 0.414 (0.01); 0.527 (0.01); respectively]. Conclusion: Older adults with higher mean diffusivity in regions important for olfaction are more likely to have hyposmia up to ten years prior. Future studies should address whether hyposmia can serve as an early biomarker of brain microstructural abnormalities for older adults with a range of cognitive functions, including those with normal cognition.
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Affiliation(s)
- Cynthia Felix
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Lana M Chahine
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA, United States
| | - James Hengenius
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Honglei Chen
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, United States
| | - Andrea L Rosso
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Xiaonan Zhu
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Zichun Cao
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, United States
| | - Caterina Rosano
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, United States
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21
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Rémillard-Pelchat D, Rahayel S, Gaubert M, Postuma RB, Montplaisir J, Pelletier A, Monchi O, Brambati SM, Carrier J, Gagnon JF. Comprehensive Analysis of Brain Volume in REM Sleep Behavior Disorder with Mild Cognitive Impairment. JOURNAL OF PARKINSONS DISEASE 2021; 12:229-241. [PMID: 34690149 DOI: 10.3233/jpd-212691] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Rapid-eye-movement sleep behavior disorder (RBD) is a major risk factor for Parkinson's disease and dementia with Lewy bodies. More than a third of RBD patients have mild cognitive impairment (MCI), but their specific structural brain alterations remain poorly understood. OBJECTIVE This study aimed to investigate the local deformation and volume of gray and white matter tissue underlying MCI in RBD. METHODS Fifty-two idiopathic RBD patients, including 17 with MCI (33%), underwent polysomnography, neuropsychological, neurological, and magnetic resonance imaging assessments. MCI diagnosis was based on a subjective complaint, cognitive impairment on the neuropsychological battery, and preserved daily functioning. Forty-one controls were also included. Deformation-based morphometry (DBM), voxel-based morphometry (VBM), and regional volume analyses of the corpus callosum and basal forebrain cholinergic were performed. Multiple regressions models were also computed using anatomical, cognitive (composite z score), and motor parameters. RESULTS Globally, patients with MCI displayed a widespread pattern of local deformation and volume atrophy in the cortical (bilateral insula, cingulate cortex, precuneus, frontal and temporal regions, right angular gyrus, and mid-posterior segment of the corpus callosum) and subcortical (brainstem, corona radiata, basal ganglia, thalamus, amygdala, and right hippocampus) regions compared to patients without MCI (DBM) or controls (DBM and VBM). Moreover, brain deformation (DBM) in patients were associated with lower performance in attention and executive functions, visuospatial abilities, and higher motor symptoms severity. CONCLUSION The present study identified novel brain structural alterations in RBD patients with MCI which correlated with poorer cognitive performance. These results are consistent with those reported in patients with synucleinopathies-related cognitive impairment.
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Affiliation(s)
- David Rémillard-Pelchat
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, Quebec, Canada
| | - Shady Rahayel
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Montreal Neurological Institute and Hospital, McGill University, Montreal, Quebec, Canada
| | - Malo Gaubert
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, Quebec, Canada
| | - Ronald B Postuma
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Department of Neurology, Montreal General Hospital, Montreal, Quebec, Canada.,Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Jacques Montplaisir
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Department of Psychiatry, Université de Montréal, Montreal, Quebec, Canada
| | - Amélie Pelletier
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - Oury Monchi
- Department of Radiology, Radio-Oncology, and Nuclear Medicine, Université de Montréal, Montreal, Quebec, Canada.,Departments of Clinical Neurosciences, Radiology, and Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Simona Maria Brambati
- Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Julie Carrier
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université de Montréal, Montreal, Quebec, Canada
| | - Jean-François Gagnon
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal -Hôpital du Sacré-Coeur de Montréal, Montreal, Quebec, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, Quebec, Canada.,Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Quebec, Canada
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22
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Sigirli D, Ozdemir ST, Erer S, Sahin I, Ercan I, Ozpar R, Orun MO, Hakyemez B. Statistical shape analysis of putamen in early-onset Parkinson's disease. Clin Neurol Neurosurg 2021; 209:106936. [PMID: 34530266 DOI: 10.1016/j.clineuro.2021.106936] [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: 05/26/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To investigate the shape differences in the putamen of early-onset Parkinson's patients compared with healthy controls and to assess and to assess sub-regional brain abnormalities. METHODS This study was conducted using the 3-T MRI scans of 23 early-onset Parkinson's patients and age and gender matched control subjects. Landmark coordinate data obtained and Procrustes analysis was used to compare mean shapes. The relationships between the centroid sizes of the left and right putamen, and the durations of disease examined using growth curve models. RESULTS While there was a significant difference between the right putamen shape of control and patient groups, there was not found a significant difference in terms of left putamen. Sub-regional analyses showed that for the right putamen, the most prominent deformations were localized in the middle-posterior putamen and minimal deformations were seen in the anterior putamen. CONCLUSION Although they were not as pronounced as those in the right putamen, the deformations in the left putamen mimic the deformations in the right putamen which are found mainly in the middle-posterior putamen and at a lesser extend in the anterior putamen.
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Affiliation(s)
- Deniz Sigirli
- Department of Biostatistics, Faculty of Medicine, Bursa Uludag University, Gorukle Campus, 16059 Bursa, Turkey.
| | - Senem Turan Ozdemir
- Department of Anatomy, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey.
| | - Sevda Erer
- Department of Neurology, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey.
| | - Ibrahim Sahin
- Department of Biostatistics, Institute of Health Sciences, Bursa Uludag University, Bursa, Turkey.
| | - Ilker Ercan
- Department of Biostatistics, Faculty of Medicine, Bursa Uludag University, Gorukle Campus, 16059 Bursa, Turkey.
| | - Rifat Ozpar
- Department of Radiology, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey.
| | - Muhammet Okay Orun
- Department of Neurology, Van Training and Research Hospital, Van, Turkey.
| | - Bahattin Hakyemez
- Department of Radiology, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey.
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23
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Jiménez-Jiménez FJ, Alonso-Navarro H, García-Martín E, Agúndez JAG. Neurochemical Features of Rem Sleep Behaviour Disorder. J Pers Med 2021; 11:jpm11090880. [PMID: 34575657 PMCID: PMC8468296 DOI: 10.3390/jpm11090880] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 08/30/2021] [Accepted: 08/30/2021] [Indexed: 12/13/2022] Open
Abstract
Dopaminergic deficiency, shown by many studies using functional neuroimaging with Single Photon Emission Computerized Tomography (SPECT) and Positron Emission Tomography (PET), is the most consistent neurochemical feature of rapid eye movement (REM) sleep behaviour disorder (RBD) and, together with transcranial ultrasonography, and determination of alpha-synuclein in certain tissues, should be considered as a reliable marker for the phenoconversion of idiopathic RBD (iRBD) to a synucleopathy (Parkinson’s disease –PD- or Lewy body dementia -LBD). The possible role in the pathogenesis of RBD of other neurotransmitters such as noradrenaline, acetylcholine, and excitatory and inhibitory neurotransmitters; hormones such as melatonin, and proinflammatory factors have also been suggested by recent reports. In general, brain perfusion and brain glucose metabolism studies have shown patterns resembling partially those of PD and LBD. Finally, the results of structural and functional MRI suggest the presence of structural changes in deep gray matter nuclei, cortical gray matter atrophy, and alterations in the functional connectivity within the basal ganglia, the cortico-striatal, and the cortico-cortical networks, but they should be considered as preliminary.
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Affiliation(s)
- Félix Javier Jiménez-Jiménez
- Section of Neurology, Hospital Universitario del Sureste, Arganda del Rey, C/Marroquina 14, 3 B, E28030 Madrid, Spain;
- Correspondence: or ; Tel.: +34-636968395; Fax: +34-913280704
| | - Hortensia Alonso-Navarro
- Section of Neurology, Hospital Universitario del Sureste, Arganda del Rey, C/Marroquina 14, 3 B, E28030 Madrid, Spain;
| | - Elena García-Martín
- UNEx, ARADyAL, Instituto de Salud Carlos III, University Institute of Molecular Pathology, E10071 Cáceres, Spain; (E.G.-M.); (J.A.G.A.)
| | - José A. G. Agúndez
- UNEx, ARADyAL, Instituto de Salud Carlos III, University Institute of Molecular Pathology, E10071 Cáceres, Spain; (E.G.-M.); (J.A.G.A.)
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24
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Miglis MG, Adler CH, Antelmi E, Arnaldi D, Baldelli L, Boeve BF, Cesari M, Dall'Antonia I, Diederich NJ, Doppler K, Dušek P, Ferri R, Gagnon JF, Gan-Or Z, Hermann W, Högl B, Hu MT, Iranzo A, Janzen A, Kuzkina A, Lee JY, Leenders KL, Lewis SJG, Liguori C, Liu J, Lo C, Ehgoetz Martens KA, Nepozitek J, Plazzi G, Provini F, Puligheddu M, Rolinski M, Rusz J, Stefani A, Summers RLS, Yoo D, Zitser J, Oertel WH. Biomarkers of conversion to α-synucleinopathy in isolated rapid-eye-movement sleep behaviour disorder. Lancet Neurol 2021; 20:671-684. [PMID: 34302789 DOI: 10.1016/s1474-4422(21)00176-9] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 12/19/2022]
Abstract
Patients with isolated rapid-eye-movement sleep behaviour disorder (RBD) are commonly regarded as being in the early stages of a progressive neurodegenerative disease involving α-synuclein pathology, such as Parkinson's disease, dementia with Lewy bodies, or multiple system atrophy. Abnormal α-synuclein deposition occurs early in the neurodegenerative process across the central and peripheral nervous systems and might precede the appearance of motor symptoms and cognitive decline by several decades. These findings provide the rationale to develop reliable biomarkers that can better predict conversion to clinically manifest α-synucleinopathies. In addition, biomarkers of disease progression will be essential to monitor treatment response once disease-modifying therapies become available, and biomarkers of disease subtype will be essential to enable prediction of which subtype of α-synucleinopathy patients with isolated RBD might develop.
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Affiliation(s)
- Mitchell G Miglis
- Department of Neurology and Neurological Sciences and Department of Psychiatry and Behavioral Science, Stanford University, Palo Alto, CA, USA.
| | - Charles H Adler
- Department of Neurology, Mayo Clinic College of Medicine, Scottsdale, AZ, USA
| | - Elena Antelmi
- Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Dario Arnaldi
- Clinical Neurology, DINOGMI, University of Genoa, Genoa, Italy; IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Luca Baldelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Bradley F Boeve
- Department of Neurology and Center for Sleep Medicine, Mayo Clinic, Rochester, MN, USA
| | - Matteo Cesari
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Irene Dall'Antonia
- Department of Neurology and Center of Clinical Neuroscience, Charles University First Faculty of Medicine, Prague, Czech Republic
| | - Nico J Diederich
- Department of Neuroscience, Centre Hospitalier de Luxembourg, Luxembourg City, Luxembourg
| | - Kathrin Doppler
- Department of Neurology, University of Würzburg, Würzburg, Germany
| | - Petr Dušek
- Department of Neurology and Center of Clinical Neuroscience, Charles University First Faculty of Medicine, Prague, Czech Republic
| | | | - Jean-François Gagnon
- Centre for Advanced Research in Sleep Medicine, Centre intégré universitaire de santé et de services sociaux du Nord-de-l'Île-de-Montréal-Hôpital du Sacré-Coeur de Montréal, Montreal, QC, Canada
| | - Ziv Gan-Or
- The Neuro-Montreal Neurological Institute-Hospital, Department of Neurology and Neurosurgery, and Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Wiebke Hermann
- Department of Neurology, University of Rostock, Rostock, Germany; German Center for Neurodegenerative Diseases (DZNE), Research Site Rostock, Rostock, Germany
| | - Birgit Högl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Michele T Hu
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Alex Iranzo
- Sleep Disorders Center, Neurology Service, Hospital Clínic Barcelona, Universitat de Barcelona, Barcelona, Spain
| | - Annette Janzen
- Department of Neurology and Section on Clinical Neuroscience, Philipps University Marburg, Marburg, Germany
| | | | - Jee-Young Lee
- Department of Neurology, Seoul National University College of Medicine, Seoul, South Korea
| | - Klaus L Leenders
- Department of Nuclear Medicine and Biomedical Imaging, University Medical Center Groningen, Groningen, Netherlands
| | - Simon J G Lewis
- ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia
| | - Claudio Liguori
- Sleep Medicine Center, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Jun Liu
- Department of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Christine Lo
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Kaylena A Ehgoetz Martens
- Department of Kinesiology, Faculty of Applied Health Sciences, University of Waterloo, Waterloo, ON, Canada
| | - Jiri Nepozitek
- Department of Neurology and Center of Clinical Neuroscience, Charles University First Faculty of Medicine, Prague, Czech Republic
| | - Giuseppe Plazzi
- IRCCS, Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy; Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Federica Provini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy; IRCCS, Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy; UOC Clinica Neurologica Rete Metropolitana NEUROMET, Bellaria Hospital, Bologna, Italy
| | - Monica Puligheddu
- Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy
| | - Michal Rolinski
- Institute of Clinical Neurosciences, University of Bristol, Bristol, UK
| | - Jan Rusz
- Department of Circuit Theory, Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Ambra Stefani
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Dallah Yoo
- Department of Neurology, Kyung Hee University Hospital, Seoul, South Korea
| | - Jennifer Zitser
- Department of Neurology and Neurological Sciences, University of California, San Francisco, CA, USA; Department of Neurology, Tel Aviv Sourasky Medical Center, Affiliate of Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Wolfgang H Oertel
- Department of Neurology and Section on Clinical Neuroscience, Philipps University Marburg, Marburg, Germany; Institute for Neurogenomics, Helmholtz Center for Health and Environment, München-Neuherberg, Germany
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Sleep disturbances are associated with cortical and subcortical atrophy in alcohol use disorder. Transl Psychiatry 2021; 11:428. [PMID: 34400604 PMCID: PMC8368207 DOI: 10.1038/s41398-021-01534-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 04/20/2021] [Accepted: 04/30/2021] [Indexed: 11/08/2022] Open
Abstract
Sleep disturbances are prominent in patients with alcohol use disorder (AUD) and predict relapse. So far, the mechanisms underlying sleep disruptions in AUD are poorly understood. Because sleep-related regions vastly overlap with regions, where patients with AUD showed pronounced grey matter (GM) reduction; we hypothesized that GM structure could contribute to sleep disturbances associated with chronic alcohol use. We combined sleep EEG recording and high-resolution structural brain imaging to examine the GM-sleep associations in 36 AUD vs. 26 healthy controls (HC). The patterns of GM-sleep associations differed for N3 vs. REM sleep and for AUD vs. HC. For cortical thickness (CT), CT-sleep associations were significant in AUD but not in HC and were lateralized such that lower CT in right hemisphere was associated with shorter N3, whereas in left hemisphere was associated with shorter REM sleep. For the GM density (GMD), we observed a more extensive positive GMD-N3 association in AUD (right orbitofrontal cortex, cerebellum, dorsal cingulate and occipital cortex) than in HC (right orbitofrontal cortex), and the GMD-REM association was positive in AUD (midline, motor and paralimbic regions) whereas negative in HC (the left supramarginal gyrus). GM structure mediated the effect of chronic alcohol use on the duration of N3 and the age by alcohol effect on REM sleep. Our findings provide evidence that sleep disturbances in AUD were associated with GM reductions. Targeting sleep-related regions might improve sleep in AUD and enhance sleep-induced benefits in cognition and emotional regulation for recovery.
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26
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Zhang HJ, Wang SH, Bai YY, Zhang JW, Chen S. Abnormal Striatal-Cortical Networks Contribute to the Attention/Executive Function Deficits in Idiopathic REM Sleep Behavior Disorder: A Resting State Functional MRI Study. Front Aging Neurosci 2021; 13:690854. [PMID: 34276345 PMCID: PMC8280755 DOI: 10.3389/fnagi.2021.690854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 06/03/2021] [Indexed: 11/13/2022] Open
Abstract
Introduction The structural and functional damages of the striatum were evident in idiopathic REM sleep behavior disorder (iRBD). With the research on iRBD deepens, cognitive impairment in iRBD is getting increasing attention. However, the mechanism of cognitive impairment in iRBD was poorly understood. Methods Neuropsychological assessment was carried out in 21 polysomnographies (PSGs) confirmed iRBD patients and 22 normal controls. Both regional homogeneity (ReHo) and seed-based functional connectivity (FC) rs-fMRI analyses were applied to explore the FC abnormalities and its association with cognition in iRBD patients. Positive ReHo clusters were set as seeds for further FC analysis. Results Idiopathic REM sleep behavior disorder patients presented cognitive deficits in attention/working memory, executive function, immediate memory, and visuo-spatial ability. ReHo analysis revealed abnormal spontaneous brain activities in the striatum (right caudate, left pallidum and bilateral putamen) in iRBD. FC analysis showed decreased striatum-related FCs in the frontal, temporal, occipital lobes, thalamus, anterior cingulate gyrus, as well as decreased intrinsic FCs between bilateral putamen and between caudate and pallidum. Deficits in attention/working memory, executive function, and immediate memory were associated with abnormal striatal-cortical FCs including frontal, temporal, and anterior cingulate cortices. Conclusion Functional changes of striatum and cognitive impairment in iRBD were reconfirmed in the present study. Abnormal striatal-cortical networks, especially the striatal-frontal network, contribute to the working memory/executive function deficits in iRBDs. These findings supported the role of striatum not only in motor but also in cognition impairment in iRBD.
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Affiliation(s)
- Hong-Ju Zhang
- Department of Neurology People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Sheng-Hui Wang
- Department of Neurology People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Ying-Ying Bai
- Department of Neurology People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Jie-Wen Zhang
- Department of Neurology People's Hospital of Zhengzhou University, Zhengzhou, China
| | - Shuai Chen
- Department of Neurology People's Hospital of Zhengzhou University, Zhengzhou, China
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Zhang Y, Vakhtin AA, Dietch J, Jennings JS, Yesavage JA, Clark JD, Bayley PJ, Ashford JW, Furst AJ. Brainstem damage is associated with poorer sleep quality and increased pain in gulf war illness veterans. Life Sci 2021; 280:119724. [PMID: 34144059 DOI: 10.1016/j.lfs.2021.119724] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/01/2021] [Accepted: 06/07/2021] [Indexed: 11/19/2022]
Abstract
AIMS Gulf War Illness (GWI) is manifested as multiple chronic symptoms, including chronic pain, chronic fatigue, sleep problems, neuropsychiatric disorders, respiratory, gastrointestinal, and skin problems. No single target tissue or unifying pathogenic process has been identified that accounts for this variety of symptoms. The brainstem has been suspected to contribute to this multiple symptomatology. The aim of this study was to assess the role of the brainstem in chronic sleep problems and pain in GWI veterans. MATERIALS AND METHODS We enrolled 90 veterans (Age = 50 ± 5, 87% Male) who were deployed to the 1990-91 Gulf War and presented with GWI symptoms. Sleep quality was evaluated using the global Pittsburgh Sleep Quality Index. Pain intensities were obtained with the Brief Pain Inventory sum score. Volumes in cortical, subcortical, brainstem, and brainstem subregions and diffusion tensor metrics in 10 bilateral brainstem tracts were tested for correlations with symptom measures. KEY FINDINGS Poorer sleep quality was significantly correlated with atrophy of the whole brainstem and brainstem subregions (including midbrain, pons, medulla). Poorer sleep quality also significantly correlated with lower fractional anisotropy in the nigrostriatal tract, medial forebrain tract, and the dorsal longitudinal fasciculus. There was a significant correlation between increased pain intensity and decreased fractional anisotropy in the dorsal longitudinal fasciculus. These correlations were not altered after controlling for age, sex, total intracranial volumes, or additional factors, e.g., depression and neurological conditions. SIGNIFICANCE These findings suggest that the brainstem plays an important role in the aberrant neuromodulation of sleep and pain symptoms in GWI.
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Affiliation(s)
- Yu Zhang
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States.
| | | | - Jessica Dietch
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States; Stanford University, Stanford, CA, United States
| | - Jennifer S Jennings
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States
| | - Jerome A Yesavage
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States; Stanford University, Stanford, CA, United States
| | - J David Clark
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States; Stanford University, Stanford, CA, United States
| | - Peter J Bayley
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States; Stanford University, Stanford, CA, United States
| | - J Wesson Ashford
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States; Stanford University, Stanford, CA, United States
| | - Ansgar J Furst
- War Related Illness & Injury Study Center (WRIISC), VA Palo Alto Health Care System, Palo Alto, CA, United States; Stanford University, Stanford, CA, United States
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28
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Zhang X, Chai C, Ghassaban K, Ye J, Huang Y, Zhang T, Wu W, Zhu J, Zhang X, Haacke EM, Wang Z, Xue R, Xia S. Assessing brain iron and volume of subcortical nuclei in idiopathic rapid eye movement sleep behavior disorder. Sleep 2021; 44:6279094. [PMID: 34015127 DOI: 10.1093/sleep/zsab131] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/30/2021] [Indexed: 12/20/2022] Open
Abstract
STUDY OBJECTIVES The relationship of iron with cognitive and motor impairment in idiopathic rapid eye movement sleep behavior disorder (iRBD) remains unknown. METHODS Twenty-nine (29) patients and 28 healthy controls (HCs) underwent susceptibility weighted imaging and susceptibility mapping. These images were used to evaluate the nigrosome-1 (N1) sign in the substantia nigra (SN), global and regional high-iron (RII) content and volume of subcortical nuclei. RESULTS The number of iRBD patients with N1 loss (12) was significantly higher than HCs (2) (P=0.005). Compared with HCs, the iRBD patients had reduced volume of the right caudate nucleus (RCN) (P<0.05, FDR correction) but no significant changes in global and RII iron of the subcortical nuclei (all P>0.05, FDR correction). Multiple regression analysis revealed that: for cognitive function, the RII iron of the RCN was significantly correlated with visuospatial function and the global iron of the right dentate nucleus (RDN) was correlated with memory function; for motor function, the RII iron of the left DN (LDN) and global iron of the left CN correlated with the Alternate-Tap test (left, average), the global iron of the LDN correlated with the Alternate-Tap test (right), and the global iron of the left GP correlated with the 3-meter Timed Up and Go test (all P<0.05, FDR correction). CONCLUSIONS Our exploratory analysis found that iRBD patients had a higher incidence of N1 loss and reduced RCN volume after FDR correction. Cognitive and motor impairment were associated with iron deposition in several cerebral nuclei after FDR correction.
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Affiliation(s)
- Xuan Zhang
- Department of Neurology, Tianjin Medical University General Hospital Airport Site, Tianjin, China
| | - Chao Chai
- Department of Radiology, Tianjin First Central Hospital, Tianjin Medical Imaging Institute, School of Medicine, Nankai University, Tianjin, China
| | - Kiarash Ghassaban
- Department of Radiology, Wayne State University, Detroit, Michigan, USA.,SpinTech MRI Inc., Bingham Farms, Michigan, USA
| | - Jingyi Ye
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yaqin Huang
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Tong Zhang
- Department of Radiology, Tianjin First Central Hospital, Tianjin Medical Imaging Institute, School of Medicine, Nankai University, Tianjin, China
| | - Wei Wu
- Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jinxia Zhu
- MR Collaboration, Siemens Healthcare Ltd., Beijing, China
| | | | - E Mark Haacke
- Department of Radiology, Wayne State University, Detroit, Michigan, USA.,SpinTech MRI Inc., Bingham Farms, Michigan, USA
| | - Zhiyun Wang
- Department of Neurology, Tianjin First Central Hospital, Tianjin, China
| | - Rong Xue
- Department of Neurology, Tianjin Medical University General Hospital Airport Site, Tianjin, China.,Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China
| | - Shuang Xia
- Department of Radiology, Tianjin First Central Hospital, Tianjin Medical Imaging Institute, School of Medicine, Nankai University, Tianjin, China
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Campabadal A, Segura B, Junque C, Iranzo A. Structural and functional magnetic resonance imaging in isolated REM sleep behavior disorder: A systematic review of studies using neuroimaging software. Sleep Med Rev 2021; 59:101495. [PMID: 33979733 DOI: 10.1016/j.smrv.2021.101495] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/08/2021] [Accepted: 04/12/2021] [Indexed: 11/17/2022]
Abstract
Isolated rapid eye movement sleep behavior disorder (iRBD) is a harbinger for developing clinical synucleinopathies. Magnetic resonance imaging (MRI) has been suggested as a tool for understanding the brain bases of iRBD and its evolution. This review systematically analyzed original full text articles on structural and functional MRI in patients with video-polysomnography-confirmed iRBD according to systematic procedures suggested by Reviews and Meta-analyses (PRISMA). The literature search was conducted via the PubMed database for articles related to structural and functional MRI in iRBD from 2000 to 2020. Investigations to date have been diverse in terms of methodology, but most agree that patients with iRBD have structural changes in deep gray matter nuclei, cortical gray matter atrophy, and disrupted functional connectivity within the basal ganglia, the cortico-striatal and cortico-cortical networks. Furthermore, there is evidence that MRI detects structural and functional brain changes associated with the motor and non-motor symptoms of iRBD. The current review highlights the need for larger multicenter and longitudinal studies, using complex approaches based on data-driven and unsupervised machine learning that will help to identify structural and functional patterns of brain degeneration. In turn, this may even allow for the prediction of subsequent phenoconversion from iRBD to the clinically defined synucleinopathies.
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Affiliation(s)
- Anna Campabadal
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - Barbara Segura
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain
| | - Carme Junque
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain.
| | - Alex Iranzo
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain; Sleep Disorders Center, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
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30
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Marques A, Roquet D, Matar E, Taylor NL, Pereira B, O'Callaghan C, Lewis SJG. Limbic hypoconnectivity in idiopathic REM sleep behaviour disorder with impulse control disorders. J Neurol 2021; 268:3371-3380. [PMID: 33709218 DOI: 10.1007/s00415-021-10498-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Current neuroimaging research has revealed several brain alterations in idiopathic REM sleep behaviour disorder (iRBD) that mirror and precede those reported in PD. However, none have specifically addressed the presence of changes across the reward system, and their role in the emergence of impulse control disorders (ICDs). We aimed to compare the volumetric and functional connectivity characteristics of the reward system in relation to the psychobehavioral profile of patients with iRBD versus healthy controls and PD patients. METHODS Twenty patients with polysomnography confirmed iRBD along with 17 PD patients and 14 healthy controls (HC) underwent structural and functional resting-state brain MRI analysis. Participants completed the questionnaire for impulsive-compulsive disorders in PD (QUIP), the short UPPS-P impulsive behaviour scale, as well as neuropsychological testing of cognitive function. RESULTS A higher percentage of iRBD patients reported hypersexuality, compared to HC and PD (p = 0.008). Whole-brain and striatal voxel-based morphometry analyses showed no significant clusters of reduced grey matter volume between groups. However, iRBD compared to HC demonstrated functional hypoconnectivity between the limbic striatum and temporo-occipital regions. Furthermore, the presence of ICDs correlated with hypoconnectivity between the limbic striatum and clusters located in cuneus, lingual and fusiform gyrus. CONCLUSION Altered functional connectivity between the limbic striatum and posterior cortical regions was associated with increased hypersexuality in iRBD. It is possible that this change may ultimately predispose individuals to the emergence of ICDs when they receive dopaminergic medications, after transitioning to PD.
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Affiliation(s)
- Ana Marques
- Brain and Mind Center, School of Medical Sciences, University of Sydney, Forefront Parkinson's Disease Research Clinic, Sydney, Australia.
- Neurology department, Université Clermont-Auvergne, Clermont-Ferrand University Hospital, EA7280, Clermont-Ferrand, France.
| | - Daniel Roquet
- Frontiers, Brain and Mind Center, University of Sydney, Sydney, Australia
| | - Elie Matar
- Brain and Mind Center, School of Medical Sciences, University of Sydney, Forefront Parkinson's Disease Research Clinic, Sydney, Australia
| | - Natasha Louise Taylor
- Brain and Mind Center, School of Medical Sciences, University of Sydney, Forefront Parkinson's Disease Research Clinic, Sydney, Australia
| | - Bruno Pereira
- Biostatistics Department, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Claire O'Callaghan
- Brain and Mind Center, School of Medical Sciences, University of Sydney, Forefront Parkinson's Disease Research Clinic, Sydney, Australia
| | - Simon J G Lewis
- Brain and Mind Center, School of Medical Sciences, University of Sydney, Forefront Parkinson's Disease Research Clinic, Sydney, Australia
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31
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Yoon EJ, Monchi O. Probable REM sleep behavior disorder is associated with longitudinal cortical thinning in Parkinson's disease. NPJ Parkinsons Dis 2021; 7:19. [PMID: 33654107 PMCID: PMC7925528 DOI: 10.1038/s41531-021-00164-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/14/2021] [Indexed: 12/23/2022] Open
Abstract
REM sleep behavior disorder (RBD) has a poor prognostic implication in both motor and non-motor functions in Parkinson’s disease (PD) patients. However, to the best of our knowledge no study to date investigated the longitudinal cerebral changes underlying RBD symptoms in PD. We performed the longitudinal study to investigate the association between probable RBD and cortical and subcortical changes in early, de novo PD patients. We studied 78 participants from the Parkinson’s Progression Marker Initiative who underwent structural MRI at baseline and after 2 years. The presence of probable RBD (pRBD) was evaluated using the RBD screening questionnaire. We compared the cross-sectional and longitudinal cortical thickness and subcortical volume changes, between PD patients with and without pRBD. At baseline, we found bilateral inferior temporal cortex thinning in the PD-pRBD group compared with the PD-noRBD group. Longitudinally, the PD-pRBD group revealed a significant increase in the rate of thinning in the left insula compared with the PD-noRBD group, and the increased thinning correlated with decreased cognitive performance. In subcortical volume analyses, the presence of pRBD was linked with volume decrease over time in the left caudate nucleus, pallidum and amygdala. The volume changes in the left caudate nucleus revealed correlations with global cognition. These results support the idea that RBD is an important marker of rapid progression in PD motor and non-motor symptoms and suggest that the atrophy in the left insula and caudate nucleus might be the underlying neurobiological mechanisms of the poorer prognosis in PD patients with RBD.
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Affiliation(s)
- Eun Jin Yoon
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada.,Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, AB, Canada
| | - Oury Monchi
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada. .,Hotchkiss Brain Institute, Cumming School of Medicine, Calgary, AB, Canada. .,Department of Radiology, University of Calgary, Calgary, AB, Canada. .,Centre de Recherche Institut, Universitaire de Gériatrie de Montréal, Montréal, QC, Canada.
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32
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Long Z, Zhao J, Chen D, Lei X. Age-related abnormalities of thalamic shape and dynamic functional connectivity after three hours of sleep restriction. PeerJ 2021; 9:e10751. [PMID: 33569254 PMCID: PMC7845526 DOI: 10.7717/peerj.10751] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 12/19/2020] [Indexed: 11/23/2022] Open
Abstract
Background Previous neuroimaging studies have detected abnormal activation and intrinsic functional connectivity of the thalamus after total sleep deprivation. However, very few studies have investigated age-related changes in the dynamic functional connectivity of the thalamus and the abnormalities in the thalamic shape following partial sleep deprivation. Methods Fifty-five participants consisting of 23 old adults (mean age: 68.8 years) and 32 young adults (mean age: 23.5 years) were included in current study. A vertex-based shape analysis and a dynamic functional connectivity analysis were used to evaluate the age-dependent structural and functional abnormalities after three hours of sleep restriction. Results Shape analysis revealed the significant main effect of deprivation with local atrophy in the left thalamus. In addition, we observed a significant age deprivation interaction effect with reduced variability of functional connectivity between the left thalamus and the left superior parietal cortex following sleep restriction. This reduction was found only in young adults. Moreover, a significantly negative linear correlation was observed between the insomnia severity index and the changes of variability (post-deprivation minus pre-deprivation) in the functional connectivity of the left thalamus with the left superior parietal cortex. Conclusions The results indicated that three hours of sleep restriction could affect both the thalamic structure and its functional dynamics. They also highlighted the role of age in studies of sleep deprivation.
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Affiliation(s)
- Zhiliang Long
- Sleep and NeuroImaging Center, Faculty of Psychology, University of the Southwest, Chongqing, China.,Key Laboratory of Cognition and Personality (Southwest University), Ministry of Education, Chongqing, China
| | - Jia Zhao
- Sleep and NeuroImaging Center, Faculty of Psychology, University of the Southwest, Chongqing, China
| | - Danni Chen
- Sleep and NeuroImaging Center, Faculty of Psychology, University of the Southwest, Chongqing, China
| | - Xu Lei
- Sleep and NeuroImaging Center, Faculty of Psychology, University of the Southwest, Chongqing, China.,Key Laboratory of Cognition and Personality (Southwest University), Ministry of Education, Chongqing, China
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33
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Rahayel S, Postuma RB, Montplaisir J, Mišić B, Tremblay C, Vo A, Lewis S, Matar E, Ehgoetz Martens K, Blanc F, Yao C, Carrier J, Monchi O, Gaubert M, Dagher A, Gagnon JF. A Prodromal Brain-Clinical Pattern of Cognition in Synucleinopathies. Ann Neurol 2020; 89:341-357. [PMID: 33217037 DOI: 10.1002/ana.25962] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Isolated (or idiopathic) rapid eye movement sleep behavior disorder (iRBD) is associated with dementia with Lewy bodies (DLB) and Parkinson's disease (PD). Biomarkers are lacking to predict conversion to a dementia or a motor-first phenotype. Here, we aimed at identifying a brain-clinical signature that predicts dementia in iRBD. METHODS A brain-clinical signature was identified in 48 patients with polysomnography-confirmed iRBD using partial least squares between brain deformation and 27 clinical variables. The resulting variable was applied to 78 patients with iRBD followed longitudinally to predict conversion to a synucleinopathy, specifically DLB. The deformation scores from patients with iRBD were compared with 207 patients with PD, DLB, or prodromal DLB to assess if scores were higher in DLB compared to PD. RESULTS One latent variable explained 31% of the brain-clinical covariance in iRBD, combining cortical and subcortical deformation and subarachnoid/ventricular expansion to cognitive and motor variables. The deformation score of this signature predicted conversion to a synucleinopathy in iRBD (p = 0.036, odds ratio [OR] = 2.249; 95% confidence interval [CI] = 1.053-4.803), specifically to DLB (OR = 4.754; 95% CI = 1.283-17.618, p = 0.020) and not PD (p = 0.286). Patients with iRBD who developed dementia had scores similar to clinical and prodromal patients with DLB but higher scores compared with patients with PD. The deformation score also predicted cognitive performance over 1, 2, and 4 years in patients with PD. INTERPRETATION We identified a brain-clinical signature that predicts conversion in iRBD to more severe/dementing forms of synucleinopathy. This pattern may serve as a new biomarker to optimize patient care, target risk reduction strategies, and administer neuroprotective trials. ANN NEUROL 2021;89:341-357.
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Affiliation(s)
- Shady Rahayel
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada.,Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal - Hôpital du Sacré-Cœur de Montréal, Montreal, QC, Canada
| | - Ronald B Postuma
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal - Hôpital du Sacré-Cœur de Montréal, Montreal, QC, Canada.,Department of Neurology, Montreal General Hospital, Montreal, QC, Canada
| | - Jacques Montplaisir
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal - Hôpital du Sacré-Cœur de Montréal, Montreal, QC, Canada.,Department of Psychiatry, Université de Montréal, Montreal, QC, Canada
| | - Bratislav Mišić
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Christina Tremblay
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Andrew Vo
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Simon Lewis
- ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia
| | - Elie Matar
- ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia
| | - Kaylena Ehgoetz Martens
- ForeFront Parkinson's Disease Research Clinic, Brain and Mind Centre, University of Sydney, Camperdown, NSW, Australia.,Department of Kinesiology, University of Waterloo, Waterloo, ON, Canada
| | - Frédéric Blanc
- ICube Laboratory and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Université de Strasbourg, Strasbourg, France.,Geriatrics Department, University Hospital of Strasbourg, CM2R (Memory Resource and Research Centre), Day Hospital, Strasbourg, France
| | - Chun Yao
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Julie Carrier
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal - Hôpital du Sacré-Cœur de Montréal, Montreal, QC, Canada.,Department of Psychology, Université de Montréal, Montreal, QC, Canada.,Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, QC, Canada
| | - Oury Monchi
- Departments of Clinical Neurosciences, Radiology, and Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.,Department of Radiology, Radio-Oncology, and Nuclear Medicine, Université de Montréal, Montreal, QC, Canada
| | - Malo Gaubert
- Center for Advanced Research in Sleep Medicine, Centre Intégré Universitaire de Santé et de Services Sociaux du Nord-de-l'Île-de-Montréal - Hôpital du Sacré-Cœur de Montréal, Montreal, QC, Canada
| | - Alain Dagher
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada
| | - Jean-François Gagnon
- Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, Canada.,Department of Psychology, Université de Montréal, Montreal, QC, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, QC, Canada
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34
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Campabadal A, Inguanzo A, Segura B, Serradell M, Abos A, Uribe C, Gaig C, Santamaria J, Compta Y, Bargallo N, Junque C, Iranzo A. Cortical gray matter progression in idiopathic REM sleep behavior disorder and its relation to cognitive decline. NEUROIMAGE-CLINICAL 2020; 28:102421. [PMID: 32957013 PMCID: PMC7509231 DOI: 10.1016/j.nicl.2020.102421] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 09/04/2020] [Accepted: 09/06/2020] [Indexed: 12/24/2022]
Abstract
Cortical degeneration over time in IRBD patients is larger than in normal aging. IRBD patients have progressive parieto-occipital and orbitofrontal thinning. Visuospatial decline in IRBD is associated with degeneration in parietal regions. Increasing motor signs in IRBD are related to frontal and parietal degeneration. Cortical thinning in posterior regions is associated with late-onset IRBD.
Background Idiopathic Rapid eye movement sleep behavior disorder (IRBD) is recognized as the prodromal stage of the alpha-Synucleinopathies. Although some studies have addressed the characterization of brain structure in IRBD, little is known about its progression. Objective The present work aims at further characterizing gray matter progression throughout IRBD relative to normal aging and investigating how these changes are associated with cognitive decline. Methods Fourteen patients with polysomnography-confirmed IRBD and 18 age-matched healthy controls (HC) underwent neuropsychological, olfactory, motor, and T1-weighted MRI evaluation at baseline and follow-up. We compared the evolution of cortical thickness (CTh), subcortical volumes, smell, motor and cognitive performance in IRBD and HC after a mean of 1.6 years. FreeSurfer was used for CTh and volumetry preprocessing and analyses. The symmetrized percent of change (SPC) of the CTh was correlated with the SPC of motor and neuropsychological performance. Results IRBD and HC differed significantly in the cortical thinning progression in regions encompassing bilateral superior parietal and precuneus, the right cuneus, the left occipital pole and lateral orbitofrontal gyri (FWE corrected, p < 0.05). The Visual form discrimination test showed worse progression in the IRBD relative to HC, that was associated with gray matter loss in the right superior parietal and the left precuneus. Increasing motor signs in IRBD were related to cortical thinning mainly involving frontal regions, and late-onset IRBD was associated with cortical thinning involving posterior areas (FWE corrected, p < 0.05). Despite finding olfactory identification deficits in IRBD, results did not show decline over the disease course. Conclusion Progression in IRBD patients is characterized by parieto-occipital and orbitofrontal thinning and visuospatial loss. The cognitive decline in IRBD is associated with degeneration in parietal regions.
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Affiliation(s)
- A Campabadal
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - A Inguanzo
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain
| | - B Segura
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain
| | - M Serradell
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain; Sleep Disorders Center, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
| | - A Abos
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain
| | - C Uribe
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain
| | - C Gaig
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain; Sleep Disorders Center, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
| | - J Santamaria
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain; Sleep Disorders Center, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
| | - Y Compta
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain; Parkinson's Disease & Movement Disorders Unit, Neurology Service, Hospital Clínic de Barcelona, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain
| | - N Bargallo
- Centre de Diagnòstic per la Imatge, Hospital Clínic, Barcelona, Catalonia, Spain
| | - C Junque
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain.
| | - A Iranzo
- Institute of Biomedical Research August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII), Barcelona, Spain; Sleep Disorders Center, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
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Li G, Chen Z, Zhou L, Zhao A, Niu M, Li Y, Luo N, Kang W, Liu J. Altered structure and functional connectivity of the central autonomic network in idiopathic rapid eye movement sleep behaviour disorder. J Sleep Res 2020; 30:e13136. [PMID: 32608031 DOI: 10.1111/jsr.13136] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/28/2020] [Accepted: 06/08/2020] [Indexed: 01/01/2023]
Abstract
Evidence suggests peripheral autonomic structures may contribute to autonomic dysfunction in idiopathic rapid eye movement sleep behaviour disorder (iRBD). However, whether the central autonomic network (CAN) is affected in iRBD remains unclear. Magnetic resonance imaging data were acquired from 65 participants (32 patients with iRBD and 33 matched healthy controls). We investigated the CAN in patients with iRBD using a combined voxel-based morphometry and resting-state functional connectivity analysis and characterised the relationships between alterations of the CAN and autonomic symptoms. Patients with iRBD had significantly reduced grey matter volume in the brainstem, anterior cingulate and insula compared with healthy controls. Functional connectivity analysis revealed reduced functional connectivity between the brainstem and the cerebellum posterior lobe, temporal lobe and anterior cingulate in patients with iRBD. In patients with iRBD, both reduced grey matter volume and decreased functional connectivity of the CAN were negatively correlated with the Scales for Outcomes in Parkinson's Disease-Autonomic scores. The present study demonstrated that both the structure and the functional connectivity of the CAN were abnormal in patients with iRBD. In addition, correlation analysis suggested that CAN abnormalities may also play a role in the development of autonomic symptoms in iRBD.
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Affiliation(s)
- Guanglu Li
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhichun Chen
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Liche Zhou
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Aonan Zhao
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengyue Niu
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuanyuan Li
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ningdi Luo
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenyan Kang
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Liu
- Department of Neurology, Institute of Neurology, Ruijin Hospital/Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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36
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Chen M, Li Y, Chen J, Gao L, Sun J, Gu Z, Wu T, Chan P. Structural and functional brain alterations in patients with idiopathic rapid eye movement sleep behavior disorder. J Neuroradiol 2020; 49:66-72. [DOI: 10.1016/j.neurad.2020.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/09/2019] [Accepted: 04/15/2020] [Indexed: 11/17/2022]
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Rahayel S, Gaubert M, Postuma RB, Montplaisir J, Carrier J, Monchi O, Rémillard-Pelchat D, Bourgouin PA, Panisset M, Chouinard S, Joubert S, Gagnon JF. Brain atrophy in Parkinson's disease with polysomnography-confirmed REM sleep behavior disorder. Sleep 2020; 42:5373066. [PMID: 30854555 DOI: 10.1093/sleep/zsz062] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 01/20/2019] [Indexed: 12/16/2022] Open
Abstract
We aimed to investigate cortical and subcortical brain alterations in people with Parkinson's disease with polysomnography-confirmed rapid eye movement (REM) sleep behavior disorder (RBD). Thirty people with Parkinson's disease, including 15 people with RBD, were recruited and compared with 41 healthy controls. Surface-based cortical and subcortical analyses were performed on T1-weighted images to investigate thickness and shape abnormalities between groups, and voxel-based and deformation-based morphometry were performed to investigate local volume. Correlations were performed in patients to investigate the structural correlates of motor activity during REM sleep. People with RBD showed cortical thinning in the right perisylvian and inferior temporal cortices and shape contraction in the putamen compared with people without RBD. Compared with controls, people with RBD had extensive cortical thinning and volume loss, brainstem volume was reduced, and shape contraction was found in the basal ganglia and hippocampus. In comparison to controls, people without RBD showed more restricted thinning in the sensorimotor, parietal, and occipital cortices, reduced volume in the brainstem, temporal and more posterior areas, and shape contraction in the pallidum and hippocampus. In Parkinson's disease, higher tonic and phasic REM sleep motor activity was associated with contraction of the thalamic surface, extensive cortical thinning, and subtle volume reduction in the middle temporal gyrus. In Parkinson's disease, the presence of RBD is associated with extensive cortical and subcortical abnormalities, suggesting more severe neurodegeneration in people with RBD. This provides potential neuroanatomical correlates for the more severe clinical phenotype reported in people with Parkinson's disease with RBD.
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Affiliation(s)
- Shady Rahayel
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, Canada.,Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Canada
| | - Malo Gaubert
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, Canada
| | - Ronald B Postuma
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Neurology, Montreal General Hospital, Montreal, Canada
| | - Jacques Montplaisir
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Psychiatry, Université de Montréal, Montreal, Canada
| | - Julie Carrier
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Canada.,Department of Psychology, Université de Montréal, Montreal, Canada
| | - Oury Monchi
- Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Canada.,Department of Radiology, Radio-Oncology, and Nuclear Medicine, Université de Montréal, Montreal, Canada.,Departments of Clinical Neurosciences, Radiology, and Hotchkiss Brain Institute, University of Calgary, Calgary, Canada
| | - David Rémillard-Pelchat
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, Canada
| | - Pierre-Alexandre Bourgouin
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Department of Psychology, Université du Québec à Montréal, Montreal, Canada
| | - Michel Panisset
- Unité des troubles du mouvement André-Barbeau, Centre Hospitalier de l'Université de Montréal, Montreal, Canada
| | - Sylvain Chouinard
- Unité des troubles du mouvement André-Barbeau, Centre Hospitalier de l'Université de Montréal, Montreal, Canada
| | - Sven Joubert
- Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Canada.,Department of Psychology, Université de Montréal, Montreal, Canada
| | - Jean-François Gagnon
- Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada.,Research Centre, Institut universitaire de gériatrie de Montréal, Montreal, Canada
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Xu H, Guo C, Luo F, Sotoodeh R, Zhang M, Wang Y. Subcortical Brain Abnormalities and Clinical Relevance in Patients With Hemifacial Spasm. Front Neurol 2020; 10:1383. [PMID: 32010045 PMCID: PMC6974682 DOI: 10.3389/fneur.2019.01383] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 12/16/2019] [Indexed: 01/09/2023] Open
Abstract
Purpose: Hemifacial spasm (HFS), a rare neuromuscular movement disorder, is characterized by unilateral, irregular, and paroxysmal facial muscle contractions. To explore the central neural mechanisms of HFS, we conducted vertex-wise shape analyses to investigate volume and shape alterations of subcortical structures, which could help to better understand the abnormality in distinct subcortical regions and determine alternative biomarkers of HFS. Methods: Thirty patients with HFS and 30 age- and sex-matched healthy controls provided written informed consent. T1-weighted structural magnetic resonance imaging (MRI) data were collected from all participants. Vertex-wise shape analyses were performed to assess the volume and shape alterations of subcortical structures following HFS. Post hoc correlations with spasm severity and measures of mood dysfunction were applied to characterize subcortical brain alterations. Results: Compared with healthy controls, patients with HFS showed increased volume in the right caudate specifically. Furthermore, patients exhibited significant shape atrophy in the anterior medial aspect of left pallidum, together with shape expansion in the anterior ventrolateral aspect of right caudate head. In addition, shape alteration in right caudate was positively correlated with both anxiety and depression severity in patients with HFS. Conclusions: This is the first study to employ vertex-wise shape analysis to investigate subcortical brain abnormalities in patients with HFS. Our findings provide compelling evidence for subcortical brain alterations specific to HFS, and further may shed light on the pathophysiology of HFS and apply to the translational medicine.
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Affiliation(s)
- Hui Xu
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Biomedical Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Chenguang Guo
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Feifei Luo
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Key Laboratory of Biomedical Information Engineering of Education Ministry, Institute of Biomedical Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Romina Sotoodeh
- Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Ming Zhang
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yuan Wang
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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Campabadal A, Abos A, Segura B, Serradell M, Uribe C, Baggio HC, Gaig C, Santamaria J, Compta Y, Bargallo N, Junque C, Iranzo A. Disruption of posterior brain functional connectivity and its relation to cognitive impairment in idiopathic REM sleep behavior disorder. NEUROIMAGE-CLINICAL 2019; 25:102138. [PMID: 31911344 PMCID: PMC6948254 DOI: 10.1016/j.nicl.2019.102138] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 12/16/2019] [Accepted: 12/21/2019] [Indexed: 12/12/2022]
Abstract
There is a reduced brain posterior functional connectivity in IRBD patients. Reduced temporo-parietal connectivity correlates with mental processing slowness. Left superior parietal lobule has reduced centrality in IRBD patients.
Background Resting-state functional MRI has been proposed as a new biomarker of prodromal neurodegenerative disorders, but it has been poorly investigated in the idiopathic form of rapid-eye-movement sleep behavior disorder (IRBD), a clinical harbinger of subsequent synucleinopathy. Particularly, a complex-network approach has not been tested to study brain functional connectivity in IRBD patients. Objectives The aim of the current work is to characterize resting-state functional connectivity in IRBD patients using a complex-network approach and to determine its possible relation to cognitive impairment. Method Twenty patients with IRBD and 27 matched healthy controls (HC) underwent resting-state functional MRI with a 3T scanner and a comprehensive neuropsychological battery. The functional connectome was studied using threshold-free network-based statistics. Global and local network parameters were calculated based on graph theory and compared between groups. Head motion, age and sex were introduced as covariates in all analyses. Results IRBD patients showed reduced cortico-cortical functional connectivity strength in comparison with HC in edges located in posterior regions (p <0.05, FWE corrected). This regional pattern was also shown in an independent analysis comprising posterior areas where a decreased connectivity in 51 edges was found, whereas no significant results were detected when an anterior network was considered (p <0.05, FWE corrected). In the posterior network, the left superior parietal lobule had reduced centrality in IRBD. Functional connectivity strength between left inferior temporal lobe and right superior parietal lobule positively correlated with mental processing speed in IRBD (r = .633; p = .003). No significant correlations were found in the HC group. Conclusion : Our findings support the presence of disrupted posterior functional brain connectivity of IRBD patients similar to that found in synucleinopathies. Moreover, connectivity reductions in IRBD were associated with lower performance in mental processing speed domain.
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Affiliation(s)
- A Campabadal
- Medical Psychology Unit, Department of Medicine. Institute of Neuroscience, University of Barcelona. Barcelona, Catalonia, Spain
| | - A Abos
- Medical Psychology Unit, Department of Medicine. Institute of Neuroscience, University of Barcelona. Barcelona, Catalonia, Spain
| | - B Segura
- Medical Psychology Unit, Department of Medicine. Institute of Neuroscience, University of Barcelona. Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII) Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS). Barcelona, Catalonia, Spain
| | - M Serradell
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII) Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS). Barcelona, Catalonia, Spain.; Multidisciplinary Sleep Unit, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
| | - C Uribe
- Medical Psychology Unit, Department of Medicine. Institute of Neuroscience, University of Barcelona. Barcelona, Catalonia, Spain
| | - H C Baggio
- Medical Psychology Unit, Department of Medicine. Institute of Neuroscience, University of Barcelona. Barcelona, Catalonia, Spain
| | - C Gaig
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII) Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS). Barcelona, Catalonia, Spain.; Multidisciplinary Sleep Unit, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
| | - J Santamaria
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII) Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS). Barcelona, Catalonia, Spain.; Multidisciplinary Sleep Unit, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
| | - Y Compta
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII) Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS). Barcelona, Catalonia, Spain.; Parkinson's disease & Movement Disorders Unit, Neurology Service, Hospital Clínic de Barcelona. Institute of Neuroscience, University of Barcelona, Barcelona, Catalonia, Spain
| | - N Bargallo
- Centre de Diagnòstic per la Imatge, Hospital Clínic, Barcelona, Catalonia, Spain
| | - C Junque
- Medical Psychology Unit, Department of Medicine. Institute of Neuroscience, University of Barcelona. Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII) Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS). Barcelona, Catalonia, Spain..
| | - A Iranzo
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED:CB06/05/0018-ISCIII) Barcelona, Spain; Institute of Biomedical Research August Pi i Sunyer (IDIBAPS). Barcelona, Catalonia, Spain.; Multidisciplinary Sleep Unit, Neurology Service, Hospital Clínic, Barcelona, Catalonia, Spain
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Chen Y, Fan C, Yang W, Nie K, Wu X, Yang Y, Yang Y, Wang L, Zhang Y, Huang B. Cortical hypoperfusion in patients with idiopathic rapid eye movement sleep behavior disorder detected with arterial spin-labeled perfusion MRI. Neurol Sci 2019; 41:809-815. [PMID: 31792718 DOI: 10.1007/s10072-019-04118-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/19/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Idiopathic rapid eye movement sleep behavior disorder (iRBD) is an important risk factor for α-synucleinopathy. OBJECTIVE We investigated alterations in the cerebral blood flow (CBF) based on arterial spin-labeled (ASL) imaging in patients with iRBD to determine brain perfusion changes associated with the disorder. METHODS Fifteen patients with iRBD and twenty age-gender-matched healthy controls were enrolled. Cortical perfusions were compared between the two groups after the ASL data was co-registered to the high-resolution T1-weighted images. RESULTS No significant differences were detected between the groups in regard to age, gender, education, or UPDRS-III score. The iRBD group showed a lower MMSE score than the healthy controls (27.07 ± 2.25 vs. 28.55 ± 1.23, p < 0.05). Compared with the healthy controls, the iRBD group showed significantly decreased CBF values in the right inferior frontal gyrus, right middle frontal gyrus, and right insula (p < 0.05 corrected). CONCLUSION The cortical hypoperfusion areas in patients with iRBD were similar to the patterns in patients with α -synucleinopathies. ASL perfusion MRI is a potential approach to find biomarkers in preclinical stages of α -synucleinopathies.
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Affiliation(s)
- Yonglu Chen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China.,Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Changhe Fan
- Guangdong Provincial Mental Health Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Wanqun Yang
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Kun Nie
- Department of Neurology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Xiaoling Wu
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Yuelong Yang
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Yunjun Yang
- Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Lijuan Wang
- Guangdong Provincial Mental Health Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Yuhu Zhang
- Guangdong Provincial Mental Health Center, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Biao Huang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, China. .,Department of Radiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan 2nd Road, Guangzhou, 510080, Guangdong, People's Republic of China.
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Cortical thinning in patients with REM sleep behavior disorder is associated with clinical progression. NPJ PARKINSONS DISEASE 2019; 5:7. [PMID: 31069252 PMCID: PMC6499806 DOI: 10.1038/s41531-019-0079-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 04/11/2019] [Indexed: 11/08/2022]
Abstract
The aim of this study is to determine whether structural MRI measures are associated with clinical impairment and progression to a Lewy body disease in patients with idiopathic REM sleep behavior disorder (iRBD). Twenty-seven patients with iRBD in addition to patients with de novo PD and healthy controls were included from the Parkinson's Progression Markers Initiative. Patients with iRBD were followed for up to 3 years. Clinical and MRI measures were compared across groups and the association between clinical features and structural MRI was assessed in iRBD patients. Cox regression analyses were applied to identify risk factors for progressing to a Lewy body disease in iRBD. Our results showed that, at baseline, iRBD patients showed parietal and occipital cortical thinning, compared to controls. They also showed worse motor and non-motor abilities, some of which correlated with motor, frontal or temporal cortical thinning. At follow-up, six (22%) iRBD patients were diagnosed with a Lewy body disorder. These patients showed cortical thinning in frontal, occipital and parietal areas compared to iRBD non-converters. Cortical thinning was a significant predictor for future development of a Lewy body disorder (HR: 0.784; 95% CI: 0.640-0.960; p = 0.02). We conclude that cortical thinning is associated with worse motor and non-motor abilities, and predicts conversion to a Lewy body disorder in iRBD, suggesting it could be used to select candidates for clinical trials to delay the onset of neurodegenerative disease.
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Bourgouin PA, Rahayel S, Gaubert M, Postuma RB, Montplaisir J, Carrier J, Monchi O, Pelletier A, Gagnon JF. Gray matter substrates of depressive and anxiety symptoms in idiopathic REM sleep behavior disorder. Parkinsonism Relat Disord 2019; 62:163-170. [DOI: 10.1016/j.parkreldis.2018.12.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 11/21/2018] [Accepted: 12/16/2018] [Indexed: 12/14/2022]
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Campabadal A, Segura B, Junque C, Serradell M, Abos A, Uribe C, Baggio HC, Gaig C, Santamaria J, Compta Y, Bargallo N, Iranzo A. Cortical Gray Matter and Hippocampal Atrophy in Idiopathic Rapid Eye Movement Sleep Behavior Disorder. Front Neurol 2019; 10:312. [PMID: 31024418 PMCID: PMC6459930 DOI: 10.3389/fneur.2019.00312] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 03/11/2019] [Indexed: 11/13/2022] Open
Abstract
Objective: In this study we investigate cortical and subcortical gray matter structure in patients with Idiopathic REM-sleep behavior disorder (IRBD), and their relation to cognitive performance. Methods: This study includes a sample of 20 patients with polysomnography-confirmed IRBD and 27 healthy controls that underwent neuropsychological and T1-weighted MRI assessment. FreeSurfer was used to estimate cortical thickness, subcortical volumetry (version 5.1), and hippocampal subfields segmentation (version 6.0). FIRST, FSL's model-based segmentation/registration tool was used for hippocampal shape analysis. Results: Compared with healthy subjects, IRBD patients showed impairment in facial recognition, verbal memory, processing speed, attention, and verbal naming. IRBD patients had cortical thinning in left superior parietal, post-central, and fusiform regions, as well as in right superior frontal and lateral occipital regions. Volumetric and shape analyses found right hippocampal atrophy in IRBD, specifically in posterior regions. Hippocampal subfields exploratory analysis identified significant differences in the right CA1, molecular layer, granule cell layer of dentate gyrus, and CA4 of this patients. No correlations were found between cognitive performance and brain atrophy. Conclusion: This work confirms the presence of posterior based cognitive dysfunction, as well as cortical and right hippocampal atrophy in IRBD patients.
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Affiliation(s)
- Anna Campabadal
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Barbara Segura
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de Barcelona, Barcelona, Spain
| | - Carme Junque
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de Barcelona, Barcelona, Spain.,Neuropsychology Group, Clinical and Experimental Neuroscience, Institute of Biomedical Research August Pi i Sunyer, Barcelona, Spain
| | | | - Alexandra Abos
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Carme Uribe
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Hugo C Baggio
- Medical Psychology Unit, Department of Medicine, Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Carles Gaig
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de Barcelona, Barcelona, Spain.,Multidisciplinary Sleep Unit, Hospital Clínic, Barcelona, Spain
| | - Joan Santamaria
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de Barcelona, Barcelona, Spain.,Multidisciplinary Sleep Unit, Hospital Clínic, Barcelona, Spain
| | - Yaroslau Compta
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de Barcelona, Barcelona, Spain.,Neuropsychology Group, Clinical and Experimental Neuroscience, Institute of Biomedical Research August Pi i Sunyer, Barcelona, Spain.,Movement Disorders Unit, Neurology Service, Institute of Neuroscience, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - Nuria Bargallo
- Centre de Diagnòstic per la Imatge, Hospital Clínic, Barcelona, Spain
| | - Alex Iranzo
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Hospital Clínic de Barcelona, Barcelona, Spain.,Multidisciplinary Sleep Unit, Hospital Clínic, Barcelona, Spain
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Han XH, Li XM, Tang WJ, Yu H, Wu P, Ge JJ, Wang J, Zuo CT, Shi KY. Assessing gray matter volume in patients with idiopathic rapid eye movement sleep behavior disorder. Neural Regen Res 2019; 14:868-875. [PMID: 30688273 PMCID: PMC6375045 DOI: 10.4103/1673-5374.249235] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Idiopathic rapid eye movement sleep behavior disorder (iRBD) is often a precursor to neurodegenerative disease. However, voxel-based morphological studies evaluating structural abnormalities in the brains of iRBD patients are relatively rare. This study aimed to explore cerebral structural alterations using magnetic resonance imaging and to determine their association with clinical parameters in iRBD patients. Brain structural T1-weighted MRI scans were acquired from 19 polysomnogram-confirmed iRBD patients (male:female 16:3; mean age 66.6 ± 7.0 years) and 20 age-matched healthy controls (male:female 5:15; mean age 63.7 ± 5.9 years). Gray matter volume (GMV) data were analyzed based on Statistical Parametric Mapping 8, using a voxel-based morphometry method and two-sample t-test and multiple regression analysis. Compared with controls, iRBD patients had increased GMV in the middle temporal gyrus and cerebellar posterior lobe, but decreased GMV in the Rolandic operculum, postcentral gyrus, insular lobe, cingulate gyrus, precuneus, rectus gyrus, and superior frontal gyrus. iRBD duration was positively correlated with GMV in the precuneus, cuneus, superior parietal gyrus, postcentral gyrus, posterior cingulate gyrus, hippocampus, lingual gyrus, middle occipital gyrus, middle temporal gyrus, and cerebellum posterior lobe. Furthermore, phasic chin electromyographic activity was positively correlated with GMV in the hippocampus, precuneus, fusiform gyrus, precentral gyrus, superior frontal gyrus, cuneus, inferior parietal lobule, angular gyrus, superior parietal gyrus, paracentral lobule, and cerebellar posterior lobe. There were no significant negative correlations of brain GMV with disease duration or electromyographic activity in iRBD patients. These findings expand the spectrum of known gray matter modifications in iRBD patients and provide evidence of a correlation between brain dysfunction and clinical manifestations in such patients. The protocol was approved by the Ethics Committee of Huashan Hospital (approval No. KY2013-336) on January 6, 2014. This trial was registered in the ISRCTN registry (ISRCTN18238599).
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Affiliation(s)
- Xian-Hua Han
- PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiu-Ming Li
- PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Wei-Jun Tang
- Department of Radiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Huan Yu
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China
| | - Ping Wu
- PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Jing-Jie Ge
- PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Jian Wang
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China
| | - Chuan-Tao Zuo
- PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Kuang-Yu Shi
- Department of Nuclear Medicine, Technical University Munich, Munich, Germany
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Neuroimaging of Rapid Eye Movement Sleep Behavior Disorder. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2019; 144:185-210. [DOI: 10.1016/bs.irn.2018.10.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Pfefferbaum A, Zahr NM, Sassoon SA, Kwon D, Pohl KM, Sullivan EV. Accelerated and Premature Aging Characterizing Regional Cortical Volume Loss in Human Immunodeficiency Virus Infection: Contributions From Alcohol, Substance Use, and Hepatitis C Coinfection. BIOLOGICAL PSYCHIATRY: COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2018; 3:844-859. [PMID: 30093343 DOI: 10.1016/j.bpsc.2018.06.006] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/16/2018] [Accepted: 06/18/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Life expectancy of successfully treated human immunodeficiency virus (HIV)-infected individuals is approaching normal longevity. The growing HIV population ≥50 years of age is now at risk of developing HIV-associated neurocognitive disorder, acquiring coinfection with the hepatitis C virus (HCV), and engaging in hazardous drinking or drug consumption that can adversely affect trajectories of the healthy aging of brain structures. METHODS This cross-sectional/longitudinal study quantified regional brain volumes from 1101 magnetic resonance imaging scans collected over 14 years in 549 participants (25 to 75 years of age): 68 HIV-infected individuals without alcohol dependence, 60 HIV-infected individuals with alcohol dependence, 222 alcohol-dependent individuals, and 199 control subjects. We tested 1) whether localized brain regions in HIV-infected individuals exhibited accelerated aging, or alternatively, nonaccelerated premature aging deficits; and 2) the extent to which alcohol or substance dependence or HCV coinfection altered brain aging trajectories. RESULTS The HIV-infected cohort exhibited steeper declining volume trajectories than control subjects, consistently in the frontal cortex. Nonaccelerated volume deficits occurred in the temporal, parietal, insular, and cingulate regions of all three diagnostic groups. Alcohol and drug dependence comorbidities and HCV coinfection exacerbated HIV-related volume deficits. Accelerated age interactions in frontal and posterior parietal volumes endured in HIV-infected individuals free of alcohol or substance dependence and HCV infection comorbidities. Functionally, poorer HIV-associated neurocognitive disorder scores and Veterans Aging Cohort Study indices correlated with smaller regional brain volumes in the HIV-infected individuals without alcohol dependence and alcohol-dependent groups. CONCLUSIONS HIV infection itself may confer a heightened risk of accelerated brain aging, potentially exacerbated by HCV coinfection and substance dependency. Confirmation would require a prospective study with a preinfection baseline.
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Affiliation(s)
- Adolf Pfefferbaum
- Center for Health Sciences, SRI International, Menlo Park, California; Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Stanford, California
| | - Natalie M Zahr
- Center for Health Sciences, SRI International, Menlo Park, California; Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Stanford, California
| | | | - Dongjin Kwon
- Center for Health Sciences, SRI International, Menlo Park, California; Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Stanford, California
| | - Kilian M Pohl
- Center for Health Sciences, SRI International, Menlo Park, California
| | - Edith V Sullivan
- Department of Psychiatry & Behavioral Sciences, Stanford University School of Medicine, Stanford, California.
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Rahayel S, Postuma RB, Montplaisir J, Génier Marchand D, Escudier F, Gaubert M, Bourgouin PA, Carrier J, Monchi O, Joubert S, Blanc F, Gagnon JF. Cortical and subcortical gray matter bases of cognitive deficits in REM sleep behavior disorder. Neurology 2018; 90:e1759-e1770. [PMID: 29669906 DOI: 10.1212/wnl.0000000000005523] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 02/20/2018] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To investigate cortical and subcortical gray matter abnormalities underlying cognitive impairment in patients with REM sleep behavior disorder (RBD) with or without mild cognitive impairment (MCI). METHODS Fifty-two patients with RBD, including 17 patients with MCI, were recruited and compared to 41 controls. All participants underwent extensive clinical assessments, neuropsychological examination, and 3-tesla MRI acquisition of T1 anatomical images. Vertex-based cortical analyses of volume, thickness, and surface area were performed to investigate cortical abnormalities between groups, whereas vertex-based shape analysis was performed to investigate subcortical structure surfaces. Correlations were performed to investigate associations between cortical and subcortical metrics, cognitive domains, and other markers of neurodegeneration (color discrimination, olfaction, and autonomic measures). RESULTS Patients with MCI had cortical thinning in the frontal, cingulate, temporal, and occipital cortices, and abnormal surface contraction in the lenticular nucleus and thalamus. Patients without MCI had cortical thinning restricted to the frontal cortex. Lower patient performance in cognitive domains was associated with cortical and subcortical abnormalities. Moreover, impaired performance on olfaction, color discrimination, and autonomic measures was associated with thinning in the occipital lobe. CONCLUSIONS Cortical and subcortical gray matter abnormalities are associated with cognitive status in patients with RBD, with more extensive patterns in patients with MCI. Our results highlight the importance of distinguishing between subgroups of patients with RBD according to cognitive status in order to better understand the neurodegenerative process in this population.
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Affiliation(s)
- Shady Rahayel
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Ronald B Postuma
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Jacques Montplaisir
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Daphné Génier Marchand
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Frédérique Escudier
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Malo Gaubert
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Pierre-Alexandre Bourgouin
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Julie Carrier
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Oury Monchi
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Sven Joubert
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Frédéric Blanc
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France
| | - Jean-François Gagnon
- From the Centre for Advanced Research in Sleep Medicine (S.R., R.B.P., J.M., D.G.M., M.G., P.-A.B., J.C., J.-F.G.), Hôpital du Sacré-Cœur de Montréal; Department of Psychology (S.R., D.G.M., M.G., P.-A.B., J.-F.G.), Université du Québec à Montréal; Department of Neurology (R.B.P.), Montreal General Hospital; Departments of Psychiatry (J.M.), Psychology (F.E., J.C., S.J.), and Radiology, Radio-Oncology, and Nuclear Medicine (O.M.), Université de Montréal; Research Centre (F.E., J.C., O.M., S.J., J.-F.G.), Institut universitaire de gériatrie de Montréal; Departments of Clinical Neurosciences and Radiology (O.M.), and Hotchkiss Brain Institute, University of Calgary, Canada; Université de Strasbourg and CNRS (F.B.), ICube UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), Team IMIS, Strasbourg; and Saint François Day Hospital, Department of Geriatrics (F.B.), and Memory Resources and Research Centre (CM2R), Departments of Geriatrics and Neurology (F.B.), Hôpitaux Universitaires de Strasbourg, France.
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