1
|
Kassabian B, Levy AM, Gardella E, Aledo-Serrano A, Ananth AL, Brea-Fernández AJ, Caumes R, Chatron N, Dainelli A, De Wachter M, Denommé-Pichon AS, Dye TJ, Fazzi E, Felt R, Fernández-Jaén A, Fernández-Prieto M, Gantz E, Gasperowicz P, Gil-Nagel A, Gómez-Andrés D, Greiner HM, Guerrini R, Haanpää MK, Helin M, Hoyer J, Hurst ACE, Kallish S, Karkare SN, Khan A, Kleinendorst L, Koch J, Kothare SV, Koudijs SM, Lagae L, Lakeman P, Leppig KA, Lesca G, Lopergolo D, Lusk L, Mackenzie A, Mei D, Møller RS, Pereira EM, Platzer K, Quelin C, Revah-Politi A, Rheims S, Rodríguez-Palmero A, Rossi A, Santorelli F, Seinfeld S, Sell E, Stephenson D, Szczaluba K, Trinka E, Umair M, Van Esch H, van Haelst MM, Veenma DCM, Weber S, Weckhuysen S, Zacher P, Tümer Z, Rubboli G. Developmental epileptic encephalopathy in DLG4-related synaptopathy. Epilepsia 2024; 65:1029-1045. [PMID: 38135915 DOI: 10.1111/epi.17876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/05/2023] [Accepted: 12/20/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVE The postsynaptic density protein of excitatory neurons PSD-95 is encoded by discs large MAGUK scaffold protein 4 (DLG4), de novo pathogenic variants of which lead to DLG4-related synaptopathy. The major clinical features are developmental delay, intellectual disability (ID), hypotonia, sleep disturbances, movement disorders, and epilepsy. Even though epilepsy is present in 50% of the individuals, it has not been investigated in detail. We describe here the phenotypic spectrum of epilepsy and associated comorbidities in patients with DLG4-related synaptopathy. METHODS We included 35 individuals with a DLG4 variant and epilepsy as part of a multicenter study. The DLG4 variants were detected by the referring laboratories. The degree of ID, hypotonia, developmental delay, and motor disturbances were evaluated by the referring clinician. Data on awake and sleep electroencephalography (EEG) and/or video-polygraphy and brain magnetic resonance imaging were collected. Antiseizure medication response was retrospectively assessed by the referring clinician. RESULTS A large variety of seizure types was reported, although focal seizures were the most common. Encephalopathy related to status epilepticus during slow-wave sleep (ESES)/developmental epileptic encephalopathy with spike-wave activation during sleep (DEE-SWAS) was diagnosed in >25% of the individuals. All but one individual presented with neurodevelopmental delay. Regression in verbal and/or motor domains was observed in all individuals who suffered from ESES/DEE-SWAS, as well as some who did not. We could not identify a clear genotype-phenotype relationship even between individuals with the same DLG4 variants. SIGNIFICANCE Our study shows that a subgroup of individuals with DLG4-related synaptopathy have DEE, and approximately one fourth of them have ESES/DEE-SWAS. Our study confirms DEE as part of the DLG4-related phenotypic spectrum. Occurrence of ESES/DEE-SWAS in DLG4-related synaptopathy requires proper investigation with sleep EEG.
Collapse
Affiliation(s)
- Benedetta Kassabian
- Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Center Filadelfia, member of the European Reference Network EpiCARE, Dianalund, Denmark
- Neurology Unit, Department of Neurosciences, University of Padua, Padua, Italy
| | - Amanda M Levy
- Department of Clinical Genetics, Kennedy Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Elena Gardella
- Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Center Filadelfia, member of the European Reference Network EpiCARE, Dianalund, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Angel Aledo-Serrano
- Epilepsy and Neurogenetics Unit, Vithas la Milagrosa University Hospital, Vithas Hospital Group, Madrid, Spain
| | - Amitha L Ananth
- Division of Pediatric Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Alejandro J Brea-Fernández
- Grupo de Genómica y Bioinformática, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CiMUS), Centro de Investigación Biomédica en Red de Enfermedades Raras del Instituto de Salud Carlos III (CIBERER-ISCIII), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Grupo de Genética, Fundación Pública Galega de Medicina Xenómica, Instituto de Investigación Biomédica de Santiago (IDIS), Santiago de Compostela, Spain
| | | | - Nicolas Chatron
- Service de Genetique, Hospices Civils de Lyon, Bron, France
- Institute NeuroMyoGène, Laboratoire Physiopathologie et Génétique du Neurone et du Muscle, Centre National de la recherche scientifique (CNRS) Unité mixte de recherche (UMR) 5261- L'Institut national de la santé et de la recherche médicale (INSERM) U1315, Université de Lyon-Université Claude Bernard Lyon 1, Lyon, France
| | - Alice Dainelli
- Neuroscience Department, Meyer Children's Hospital IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico), member of the European Reference Network EpiCARE, Florence, Italy
| | - Matthias De Wachter
- Department of Pediatric Neurology, Antwerp University Hospital, University of Antwerp, Edegem, Belgium
| | - Anne-Sophie Denommé-Pichon
- Functional Unit for Diagnostic Innovation in Rare Diseases, Fédération Hospitalo-Universitaire Médecine TRANSLationnelle et Anomalies du Développement (FHU-TRANSLAD), Dijon Bourgogne University Hospital, Dijon, France
- L'Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche (UMR) 1231, Génétique des Anomalies du Développement (GAD), Fédération Hospitalo-Universitaire Médecine TRANSLationnelle et Anomalies du Développement (FHU-TRANSLAD), University of Burgundy, Dijon, France
| | - Thomas J Dye
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Elisa Fazzi
- Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy
- Unit of Child Neurology and Psychiatry, Azienda Socio Sanitaria Territoriale (ASST) Spedali Civili of Brescia, Brescia, Italy
| | - Roxanne Felt
- Department of Neurology, Kaiser Permanente Bellevue Medical Center, Bellevue, Washington, USA
| | - Alberto Fernández-Jaén
- Department of Pediatric Neurology, Neurogenetics Section, Hospital Universitario Quirónsalud, Madrid, Spain
- Facultad de Medicina, Universidad Europea, Madrid, Spain
| | - Montse Fernández-Prieto
- Grupo de Genómica y Bioinformática, Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CiMUS), Centro de Investigación Biomédica en Red de Enfermedades Raras del Instituto de Salud Carlos III (CIBERER-ISCIII), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
- Grupo de Genética, Fundación Pública Galega de Medicina Xenómica, Instituto de Investigación Biomédica de Santiago (IDIS), Santiago de Compostela, Spain
| | - Emily Gantz
- Division of Pediatric Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Piotr Gasperowicz
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
| | - Antonio Gil-Nagel
- Neurology Department, Epilepsy Program, Ruber Internacional Hospital, Madrid, Spain
| | - David Gómez-Andrés
- Child Neurology Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Barcelona, Spain
| | - Hansel M Greiner
- Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Renzo Guerrini
- Neuroscience Department, Meyer Children's Hospital IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico), member of the European Reference Network EpiCARE, Florence, Italy
| | - Maria K Haanpää
- Department of Genomics, Turku University Hospital, Turku, Finland
| | - Minttu Helin
- Department of Pediatric Neurology, Turku University Hospital, Turku, Finland
| | - Juliane Hoyer
- Friedrich-Alexander-Universität Erlangen Nürnberg, Institute of Human Genetics, Erlangen, Germany
| | - Anna C E Hurst
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Staci Kallish
- Division of Translational Medicine and Human Genetics, Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Shefali N Karkare
- Division of Pediatric Neurology, Department of Pediatrics, Cohen Children's Medical Center, New Hyde Park, New York, USA
| | - Amjad Khan
- Department of Zoology, Faculty of Biological Sciences, University of Lakki Marwat, Lakki Marwat, Pakistan
- Institute for Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Lotte Kleinendorst
- Department of Human Genetics, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, the Netherlands
- Emma Center for Personalized Medicine, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, the Netherlands
| | - Johannes Koch
- University Children's Hospital, Paracelsus Medical University, Salzburg, Austria
| | - Sanjeev V Kothare
- Division of Pediatric Neurology, Department of Pediatrics, Cohen Children's Medical Center, New Hyde Park, New York, USA
| | - Suzanna M Koudijs
- Department of Neurology, Erasmus Medical Center (MC) Sophia Children's Hospital, Rotterdam, the Netherlands
- Erfelijke Neuro-Cognitieve Ontwikkelingsstoornissen, Rotterdam, Erasmus Medical Center (ENCORE)-GRIN Expertise Center, Rotterdam, the Netherlands
| | - Lieven Lagae
- Department of Development and Regeneration, Section Paediatric Neurology, member of the European Reference Network EpiCARE, University Hospitals Leuven, Leuven, Belgium
| | - Phillis Lakeman
- Department of Human Genetics, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, the Netherlands
| | - Kathleen A Leppig
- Genetic Services, Kaiser Permanente of Washington, Seattle, Washington, USA
| | - Gaetan Lesca
- Service de Genetique, Hospices Civils de Lyon, Bron, France
- Institute NeuroMyoGène, Laboratoire Physiopathologie et Génétique du Neurone et du Muscle, Centre National de la recherche scientifique (CNRS) Unité mixte de recherche (UMR) 5261- L'Institut national de la santé et de la recherche médicale (INSERM) U1315, Université de Lyon-Université Claude Bernard Lyon 1, Lyon, France
| | - Diego Lopergolo
- Department of Medicine, Surgery, and Neurosciences, University of Siena, Siena, Italy
- Molecular Medicine for Neurodegenerative and Neuromuscular Diseases Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Stella Maris Foundation, Pisa, Italy
| | - Laina Lusk
- Division of Neurology, Epilepsy Neurogenetics Initiative, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Alex Mackenzie
- Research Institute, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
- Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Davide Mei
- Neuroscience Department, Meyer Children's Hospital IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico), member of the European Reference Network EpiCARE, Florence, Italy
| | - Rikke S Møller
- Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Center Filadelfia, member of the European Reference Network EpiCARE, Dianalund, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Elaine M Pereira
- Division of Clinical Genetics, Department of Pediatrics, Columbia University Vagelos College of Physicians and Surgeons and New York-Presbyterian Morgan Stanley Children's Hospital, New York, New York, USA
| | - Konrad Platzer
- Institute of Human Genetics, University of Leipzig Medical Center, Leipzig, Germany
| | - Chloe Quelin
- Department of Medical Genetics, CHU de Rennes, Rennes, France
| | - Anya Revah-Politi
- Institute for Genomic Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Sylvain Rheims
- Department of Functional Neurology and Epileptology, member of the European Reference Network EpiCARE, Hospices Civils de Lyon and Lyon 1 University, Lyon, France
| | - Agustí Rodríguez-Palmero
- Paediatric Neurology Unit, Department of Pediatrics, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Barcelona, Spain
- Grupo de Investigación Biomédica en Red de Enfermedades Raras, Instituto de Salud Carlos III, Madrid, Spain
| | - Andrea Rossi
- Unit of Child Neurology and Psychiatry, Azienda Socio Sanitaria Territoriale (ASST) Spedali Civili of Brescia, Brescia, Italy
| | - Filippo Santorelli
- Molecular Medicine for Neurodegenerative and Neuromuscular Diseases Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Stella Maris Foundation, Pisa, Italy
| | - Syndi Seinfeld
- Department of Pediatric Neurology, Neuroscience Center, Joe DiMaggio Children's Hospital, Hollywood, Florida, USA
| | - Erick Sell
- Division of Neurology, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Donna Stephenson
- Division of Neurology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Krzysztof Szczaluba
- Department of Medical Genetics, Medical University of Warsaw, Warsaw, Poland
- Center of Excellence for Rare and Undiagnosed Diseases, Medical University of Warsaw, Warsaw, Poland
| | - Eugen Trinka
- Department of Neurology, Neurointensive Care and Neurorehabilitation, Christian Doppler University Hospital, member of the European Reference Network EpiCARE, Paracelsus Medical University, Center for Cognitive Neuroscience, Salzburg, Austria
- Neuroscience Institute, Christian Doppler University Hospital, member of the European Reference Network EpiCARE, Paracelsus Medical University, Center for Cognitive Neuroscience, Salzburg, Austria
| | - Muhammad Umair
- Medical Genomics Research Department, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
- Department of Life Sciences, School of Science, University of Management and Technology, Lahore, Pakistan
| | - Hilde Van Esch
- Center for Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - Mieke M van Haelst
- Department of Human Genetics, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, the Netherlands
- Emma Center for Personalized Medicine, Amsterdam University Medical Center (UMC), University of Amsterdam, Amsterdam, the Netherlands
| | - Danielle C M Veenma
- Erfelijke Neuro-Cognitieve Ontwikkelingsstoornissen, Rotterdam, Erasmus Medical Center (ENCORE)-GRIN Expertise Center, Rotterdam, the Netherlands
- Department of Pediatrics, Erasmus Medical Center (MC)-Sophia Hospital, Rotterdam, the Netherlands
| | - Sacha Weber
- Service de Génétique, Centre Hospitalier Universitaire (CHU) de Caen-Normandie, Caen, France
- Service de Neurologie, Centre Hospitalier Universitaire (CHU) de Caen-Normandie, Caen, France
| | - Sarah Weckhuysen
- Applied and Translational Neurogenomics Group, Vlaams Instituut voor Biotechnologie (VIB) Center for Molecular Neurology, Antwerp, Belgium
- Department of Neurology, Antwerp University Hospital, Antwerp, Belgium
| | - Pia Zacher
- Center for Adults with Disability (MZEB), Epilepsy Center Kleinwachau, Radeberg, Germany
| | - Zeynep Tümer
- Department of Clinical Genetics, Kennedy Center, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Guido Rubboli
- Department of Epilepsy Genetics and Precision Medicine, Danish Epilepsy Center Filadelfia, member of the European Reference Network EpiCARE, Dianalund, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
2
|
Fusto A, Cassandrini D, Fiorillo C, Codemo V, Astrea G, D’Amico A, Maggi L, Magri F, Pane M, Tasca G, Sabbatini D, Bello L, Battini R, Bernasconi P, Fattori F, Bertini ES, Comi G, Messina S, Mongini T, Moroni I, Panicucci C, Berardinelli A, Donati A, Nigro V, Pini A, Giannotta M, Dosi C, Ricci E, Mercuri E, Minervini G, Tosatto S, Santorelli F, Bruno C, Pegoraro E. Expanding the clinical-pathological and genetic spectrum of RYR1-related congenital myopathies with cores and minicores: an Italian population study. Acta Neuropathol Commun 2022; 10:54. [PMID: 35428369 PMCID: PMC9013059 DOI: 10.1186/s40478-022-01357-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/25/2022] [Indexed: 11/10/2022] Open
Abstract
Mutations in the RYR1 gene, encoding ryanodine receptor 1 (RyR1), are a well-known cause of Central Core Disease (CCD) and Multi-minicore Disease (MmD). We screened a cohort of 153 patients carrying an histopathological diagnosis of core myopathy (cores and minicores) for RYR1 mutation. At least one RYR1 mutation was identified in 69 of them and these patients were further studied. Clinical and histopathological features were collected. Clinical phenotype was highly heterogeneous ranging from asymptomatic or paucisymptomatic hyperCKemia to severe muscle weakness and skeletal deformity with loss of ambulation. Sixty-eight RYR1 mutations, generally missense, were identified, of which 16 were novel. The combined analysis of the clinical presentation, disease progression and the structural bioinformatic analyses of RYR1 allowed to associate some phenotypes to mutations in specific domains. In addition, this study highlighted the structural bioinformatics potential in the prediction of the pathogenicity of RYR1 mutations. Further improvement in the comprehension of genotype-phenotype relationship of core myopathies can be expected in the next future: the actual lack of the human RyR1 crystal structure paired with the presence of large intrinsically disordered regions in RyR1, and the frequent presence of more than one RYR1 mutation in core myopathy patients, require designing novel investigation strategies to completely address RyR1 mutation effect.
Collapse
|
3
|
Ardissone A, Bruno C, Diodato D, Donati A, Ghezzi D, Lamantea E, Lamperti C, Mancuso M, Martinelli D, Primiano G, Procopio E, Rubegni A, Santorelli F, Schiaffino MC, Servidei S, Tubili F, Bertini E, Moroni I. Clinical, imaging, biochemical and molecular features in Leigh syndrome: a study from the Italian network of mitochondrial diseases. Orphanet J Rare Dis 2021; 16:413. [PMID: 34627336 PMCID: PMC8501644 DOI: 10.1186/s13023-021-02029-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/18/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Leigh syndrome (LS) is a progressive neurodegenerative disorder associated with primary or secondary dysfunction of mitochondrial oxidative phosphorylation and is the most common mitochondrial disease in childhood. Numerous reports on the biochemical and molecular profiles of LS have been published, but there are limited studies on genetically confirmed large series. We reviewed the clinical, imaging, biochemical and molecular data of 122 patients with a diagnosis of LS collected in the Italian Collaborative Network of Mitochondrial Diseases database. RESULTS Clinical picture was characterized by early onset of several neurological signs dominated by central nervous system involvement associated with both supra- and sub-tentorial grey matter at MRI in the majority of cases. Extraneurological organ involvement is less frequent in LS than expected for a mitochondrial disorder. Complex I and IV deficiencies were the most common biochemical diagnoses, mostly associated with mutations in SURF1 or mitochondrial-DNA genes encoding complex I subunits. Our data showed SURF1 as the genotype with the most unfavorable prognosis, differently from other cohorts reported to date. CONCLUSION We report on a large genetically defined LS cohort, adding new data on phenotype-genotype correlation, prognostic factors and possible suggestions to diagnostic workup.
Collapse
Affiliation(s)
- Anna Ardissone
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico "Carlo Besta", Milan, Italy.
| | - Claudio Bruno
- Center of Translational and Experimental Myology, IRCCS Istituto Giannina Gaslini, Genova, Italy
| | - Daria Diodato
- Muscular and Neurodegenerative Disease Unit, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Alice Donati
- Metabolic and Neuromuscular Unit, Meyer Children Hospital-University of Florence, Florence, Italy
| | - Daniele Ghezzi
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, 20122, Milan, Italy
| | - Eleonora Lamantea
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Costanza Lamperti
- Unit of Medical Genetics and Neurogenetics, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Michelangelo Mancuso
- Department of Clinical and Experimental Medicine, Neurological Institute, University of Pisa, Pisa, Italy
| | | | - Guido Primiano
- UOC Neurofisiopatologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italia
| | - Elena Procopio
- Metabolic and Neuromuscular Unit, Meyer Children Hospital-University of Florence, Florence, Italy
| | - Anna Rubegni
- Molecular Medicine, IRCCS Fondazione Stella Maris, Pisa, Italy
| | | | | | - Serenella Servidei
- UOC Neurofisiopatologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.,Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, Rome, Italia
| | - Flavia Tubili
- Metabolic and Neuromuscular Unit, Meyer Children Hospital-University of Florence, Florence, Italy
| | - Enrico Bertini
- Muscular and Neurodegenerative Disease Unit, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Isabella Moroni
- Department of Pediatric Neuroscience, Fondazione IRCCS Istituto Neurologico "Carlo Besta", Milan, Italy
| |
Collapse
|
4
|
Vaisfeld A, Bruno G, Petracca M, Bentivoglio AR, Servidei S, Vita MG, Bove F, Straccia G, Dato C, Di Iorio G, Sampaolo S, Peluso S, De Rosa A, De Michele G, Barghigiani M, Galatolo D, Tessa A, Santorelli F, Chiurazzi P, Melone MAB. Neuroacanthocytosis Syndromes in an Italian Cohort: Clinical Spectrum, High Genetic Variability and Muscle Involvement. Genes (Basel) 2021; 12:genes12030344. [PMID: 33652783 PMCID: PMC7996727 DOI: 10.3390/genes12030344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/17/2021] [Accepted: 02/22/2021] [Indexed: 01/12/2023] Open
Abstract
Neuroacanthocytosis (NA) syndromes are a group of genetically defined diseases characterized by the association of red blood cell acanthocytosis, progressive degeneration of the basal ganglia and neuromuscular features with characteristic persistent hyperCKemia. The main NA syndromes include autosomal recessive chorea-acanthocytosis (ChAc) and X-linked McLeod syndrome (MLS). A series of Italian patients selected through a multicenter study for these specific neurological phenotypes underwent DNA sequencing of the VPS13A and XK genes to search for causative mutations. Where it has been possible, muscle biopsies were obtained and thoroughly investigated with histochemical assays. A total of nine patients from five different families were diagnosed with ChAC and had mostly biallelic changes in the VPS13A gene (three nonsense, two frameshift, three splicing), while three patients from a single X-linked family were diagnosed with McLeod syndrome and had a deletion in the XK gene. Despite a very low incidence (only one thousand cases of ChAc and a few hundred MLS cases reported worldwide), none of the 8 VPS13A variants identified in our patients is shared by two families, suggesting the high genetic variability of ChAc in the Italian population. In our series, in line with epidemiological data, McLeod syndrome occurs less frequently than ChAc, although it can be easily suspected because of its X-linked mode of inheritance. Finally, histochemical studies strongly suggest that muscle pathology is not simply secondary to the axonal neuropathy, frequently seen in these patients, but primary myopathic alterations can be detected in both NA syndromes.
Collapse
Affiliation(s)
- Alessandro Vaisfeld
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
| | - Giorgia Bruno
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Martina Petracca
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
| | - Anna Rita Bentivoglio
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
- Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Serenella Servidei
- Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurofisiopatologia, 00168 Rome, Italy
| | - Maria Gabriella Vita
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
| | - Francesco Bove
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC di Neurologia, 00168 Roma, Italy; (M.P.); (A.R.B.); (M.G.V.); (F.B.)
- Dipartimento Universitario di Neuroscienze, Università Cattolica del Sacro Cuore, 00168 Rome, Italy;
| | - Giulia Straccia
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Clemente Dato
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Giuseppe Di Iorio
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Simone Sampaolo
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
| | - Silvio Peluso
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (S.P.); (A.D.R.); (G.D.M.)
| | - Anna De Rosa
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (S.P.); (A.D.R.); (G.D.M.)
| | - Giuseppe De Michele
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Federico II University, 80138 Naples, Italy; (S.P.); (A.D.R.); (G.D.M.)
| | - Melissa Barghigiani
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Daniele Galatolo
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Alessandra Tessa
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Filippo Santorelli
- Molecular Medicine, IRCCS Fondazione Stella Maris, 56128 Pisa, Italy; (M.B.); (D.G.); (A.T.); (F.S.)
| | - Pietro Chiurazzi
- Istituto di Medicina Genomica, Università Cattolica del Sacro Cuore, 00168 Roma, Italy;
- Fondazione Policlinico Universitario “A. Gemelli” IRCCS, UOC Genetica Medica, 00168 Roma, Italy
- Correspondence: ; Tel.: +39-338-8361006
| | - Mariarosa Anna Beatrice Melone
- Department of Advanced Medical and Surgical Sciences, 2nd Division of Neurology, Center for Rare Diseases and Interuniversity Center for Research in Neurosciences, University of Campania “Luigi Vanvitelli”, 80131 Naples, Italy; (G.B.); (G.S.); (C.D.); (G.D.I.); (S.S.); (M.A.B.M.)
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, Temple University, Philadelphia, PA 19122-6078, USA
| |
Collapse
|
5
|
Peluso F, Palazzo V, Indolfi G, Mari F, Pasqualetti R, Procopio E, Nesti C, Guerrini R, Santorelli F, Giglio S. Leopard-like retinopathy and severe early-onset portal hypertension expand the phenotype of KARS1-related syndrome: a case report. BMC Med Genomics 2021; 14:25. [PMID: 33478492 PMCID: PMC7818779 DOI: 10.1186/s12920-020-00863-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 12/25/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mutations in lysyl-tRNA synthetase (KARS1), an enzyme that charges tRNA with the amino acid lysine in both the cytoplasm and mitochondria, have been associated thus far with autosomal recessive Charcot-Marie-Tooth type CMTRIB, hearing loss type DFNB89, and mitochondrial encephalohepatopathy (MEH) featuring neurodevelopmental disorders with microcephaly, white matter changes, and cardiac and hepatic failure in less than 30 patients. CASE PRESENTATION We report the clinical, biochemical and molecular findings of a 14-month-old girl with severe MEH compatible clinical features, profound sensorineural hearing loss, leopard spot retinopathy, pancytopenia, and advanced liver disease with portal hypertension leading to death at the age of 30 months. CONCLUSIONS Whole exome sequencing identified two rare variants in KARS1 gene. Our report expands the allelic and clinical features of tRNA synthase disorders. Moreover, with our report we confirm the usefulness of WES as first tier diagnostic method in infants with complex multisystem phenotypes.
Collapse
Affiliation(s)
| | - Viviana Palazzo
- Medical Genetics Unit, Meyer Children's University Hospital, Florence, Italy
| | - Giuseppe Indolfi
- Paediatric and Liver Unit, Meyer Children's University Hospital, Florence, Italy
| | - Francesco Mari
- Paediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Meyer Children's University Hospital, Florence, Italy
| | - Roberta Pasqualetti
- Paediatric Ophthalmology Unit, Meyer Children's University Hospital, Florence, Italy
| | - Elena Procopio
- Metabolic and Muscular Unit, Meyer Children's University Hospital of Florence, Florence, Italy
| | - Claudia Nesti
- Molecular Medicine, IRCCS Fondazione Stella Maris, Pisa, Italy
| | - Renzo Guerrini
- Paediatric Neurology, Neurogenetics and Neurobiology Unit and Laboratories, Meyer Children's University Hospital, Florence, Italy
| | | | - Sabrina Giglio
- Medical Genetics Unit, Meyer Children's University Hospital, Florence, Italy. .,Sabrina Giglio MD, PhD Unit of Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy.
| |
Collapse
|
6
|
Sambri I, Massa F, Gullo F, Meneghini S, Cassina L, Carraro M, Dina G, Quattrini A, Patanella L, Carissimo A, Iuliano A, Santorelli F, Codazzi F, Grohovaz F, Bernardi P, Becchetti A, Casari G. Impaired flickering of the permeability transition pore causes SPG7 spastic paraplegia. EBioMedicine 2020; 61:103050. [PMID: 33045469 PMCID: PMC7553352 DOI: 10.1016/j.ebiom.2020.103050] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/14/2020] [Accepted: 09/22/2020] [Indexed: 02/07/2023] Open
Abstract
Background Mutations of the mitochondrial protein paraplegin cause hereditary spastic paraplegia type 7 (SPG7), a so-far untreatable degenerative disease of the upper motoneuron with still undefined pathomechanism. The intermittent mitochondrial permeability transition pore (mPTP) opening, called flickering, is an essential process that operates to maintain mitochondrial homeostasis by reducing intra-matrix Ca2+ and reactive oxygen species (ROS) concentration, and is critical for efficient synaptic function. Methods We use a fluorescence-based approach to measure mPTP flickering in living cells and biochemical and molecular biology techniques to dissect the pathogenic mechanism of SPG7. In the SPG7 animal model we evaluate the potential improvement of the motor defect, neuroinflammation and neurodegeneration by means of an mPTP inducer, the benzodiazepine Bz-423. Findings We demonstrate that paraplegin is required for efficient transient opening of the mPTP, that is impaired in both SPG7 patients-derived fibroblasts and primary neurons from Spg7−/− mice. We show that dysregulation of mPTP opening at the pre-synaptic terminal impairs neurotransmitter release leading to ineffective synaptic transmission. Lack of paraplegin impairs mPTP flickering by a mechanism involving increased expression and activity of sirtuin3, which promotes deacetylation of cyclophilin D, thus hampering mPTP opening. Pharmacological treatment with Bz-423, which bypasses the activity of CypD, normalizes synaptic transmission and rescues the motor impairment of the SPG7 mouse model. Interpretation mPTP targeting opens a new avenue for the potential therapy of this form of spastic paraplegia. Funding Telethon Foundation grant (TGMGCSBX16TT); Dept. of Defense, US Army, grant W81XWH-18–1–0001
Collapse
Affiliation(s)
- Irene Sambri
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli-Naples, Italy
| | - Filomena Massa
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli-Naples, Italy
| | | | | | | | | | | | | | - Lorenzo Patanella
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli-Naples, Italy
| | - Annamaria Carissimo
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli-Naples, Italy; Institute for Applied Mathematics 'Mauro Picone', National Research Council, Naples, Italy
| | - Antonella Iuliano
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli-Naples, Italy
| | | | | | | | | | | | - Giorgio Casari
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli-Naples, Italy; Vita-Salute San Raffaele University, Milan, Italy.
| |
Collapse
|
7
|
Maggi L, Verardo M, Rubegni A, Bruno C, Lupica A, Berardinelli A, Ripolone M, Vattemi G, Ruggiero L, D'Amico A, Rodolico C, Sciacco M, Nigro V, Santorelli F, Tonin P, Fiorillo C, Mora M. P.110Clinical, morphological and genetic data in Italian patients with fiber-type-disproportion. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
8
|
Vicario M, Zanni G, Vallese F, Santorelli F, Grinzato A, Cieri D, Berto P, Frizzarin M, Lopreiato R, Zonta F, Ferro S, Sandre M, Marin O, Ruzzene M, Bertini E, Zanotti G, Brini M, Calì T, Carafoli E. A V1143F mutation in the neuronal-enriched isoform 2 of the PMCA pump is linked with ataxia. Neurobiol Dis 2018; 115:157-166. [PMID: 29655659 DOI: 10.1016/j.nbd.2018.04.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/21/2018] [Accepted: 04/09/2018] [Indexed: 12/13/2022] Open
Abstract
The fine regulation of intracellular calcium is fundamental for all eukaryotic cells. In neurons, Ca2+ oscillations govern the synaptic development, the release of neurotransmitters and the expression of several genes. Alterations of Ca2+ homeostasis were found to play a pivotal role in neurodegenerative progression. The maintenance of proper Ca2+ signaling in neurons demands the continuous activity of Ca2+ pumps and exchangers to guarantee physiological cytosolic concentration of the cation. The plasma membrane Ca2+ATPases (PMCA pumps) play a key role in the regulation of Ca2+ handling in selected sub-plasma membrane microdomains. Among the four basic PMCA pump isoforms existing in mammals, isoforms 2 and 3 are particularly enriched in the nervous system. In humans, genetic mutations in the PMCA2 gene in association with cadherin 23 mutations have been linked to hearing loss phenotypes, while those occurring in the PMCA3 gene were associated with X-linked congenital cerebellar ataxias. Here we describe a novel missense mutation (V1143F) in the calmodulin binding domain (CaM-BD) of the PMCA2 protein. The mutant pump was present in a patient showing congenital cerebellar ataxia but no overt signs of deafness, in line with the absence of mutations in the cadherin 23 gene. Biochemical and molecular dynamics studies on the mutated PMCA2 have revealed that the V1143F substitution alters the binding of calmodulin to the CaM-BD leading to impaired Ca2+ ejection.
Collapse
Affiliation(s)
- Mattia Vicario
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Ginevra Zanni
- Department of Neurosciences, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Francesca Vallese
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | | | - Alessandro Grinzato
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Domenico Cieri
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Paola Berto
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Martina Frizzarin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Raffaele Lopreiato
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Francesco Zonta
- Shanghai Institute of Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China; Department of Biomedical Sciences, Institute of Cell Biology and Neurobiology, Italian National Research Council, 00015 Monterotondo, Rome, Italy
| | - Stefania Ferro
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Michele Sandre
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Oriano Marin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Maria Ruzzene
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Enrico Bertini
- Department of Neurosciences, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Giuseppe Zanotti
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Marisa Brini
- Department of Biology, University of Padova, Italy.
| | - Tito Calì
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy; Padua Neuroscience Center (PNC), University of Padua, 35122 Padova, Italy.
| | | |
Collapse
|
9
|
Ricci G, Montano V, Simoncini C, Chico L, Servadio A, Dell'Osso G, Santorelli F, Savarese M, Papa V, Cenacchi G, Siciliano G. Myofibrillar myopathies with autophagic vacuoles: Report of a case series. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
10
|
Fiorillo C, Savarese M, Astrea G, Cassandrini D, Ruggiero L, Fanin M, Vercelli L, D'Amico A, Pane M, Tasca G, Morandi M, Pegoraro E, Santoro L, Mercuri E, Mora M, Bertini E, Minetti C, Santorelli F, Nigro V, Bruno C. MYH7-related myopathies: Clinical, histopathological and imaging findings in a cohort of Italian patients. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
11
|
Cassandrini D, Tonin P, Morandi L, Musumeci O, Filosto M, Siciliano G, Pegoraro E, Santoro L, Massa R, Mongini T, Sacchini M, Bertini E, Marrosu G, Rigoldi M, Burlina A, Pini A, Previtali S, Santorelli F, Toscano A, Bruno C. Clinical and molecular features of a large cohort of Italian McArdle patients. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
12
|
Fiorillo C, Fattori F, Astrea G, Pedemonte M, Rubegni A, Trucco F, Tessa A, Savarese M, Baldacci J, Broda P, Bertini E, Minetti C, Nigro V, Bruno C, Santorelli F. X-linked myotubular myopathy in females. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Savarese M, Di Fruscio G, Bruno C, Torella A, Giugliano T, Mora M, Morandi L, Siciliano G, Toscano A, Garofalo A, Mongini T, Angelini C, Santoro L, Claes K, Bertini E, Santorelli F, Comi G, Sacconi S, Politano L, Nigro V. Large screening of patients diagnosed as limb girdle muscular dystrophy or congenital myopathy using Motorplex. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
14
|
Ruggiero L, Fiorillo C, Tessa A, Manganelli F, Iodice R, Dubbioso R, Vitale F, Storti E, Soscia E, Santorelli F, Santoro L. Muscle fiber type disproportion (FTD) in a family with mutations in the LMNA gene. Muscle Nerve 2015; 51:604-8. [PMID: 25256213 DOI: 10.1002/mus.24467] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2014] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Mutations in the lamin A/C protein cause laminopathies, a heterogeneous group of disorders that include recessive axonal neuropathy (CMT2B1), Emery-Dreifuss muscular dystrophy (EDMD), limb-girdle muscular dystrophy (LGMD), dilated cardiomyopathy with conduction defect, and different forms of lipodystrophy and progeria. METHODS We provide clinical, histopathological, muscle imaging, and cardiac features of a family with heterozygous mutation in the LMNA gene. RESULTS We identified heterozygous mutations (c.80C> T; pT27I) in the LMNA gene in 3 family members who had the LGMD phenotype with onset in their early thirties and cardiac conduction defects or dilated cardiomyopathy. Interestingly, muscle biopsies showed changes consistent with fiber type disproportion (FTD). CONCLUSIONS Fiber type disproportion has been reported only anecdotally in muscle biopsies of patients with LMNA mutations. Our report further supports this association and suggests inclusion of molecular testing for LMNA in the differential diagnosis of myopathies with FTD due to the risk for life threatening events.
Collapse
Affiliation(s)
- Lucia Ruggiero
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, University Federico II of Naples, Via Sergio Pansini 5, 80131, Naples, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Barone R, Aiello C, Race V, Morava E, Foulquier F, Riemersma M, Passarelli C, Concolino D, Carella M, Santorelli F, Vleugels W, Mercuri E, Garozzo D, Sturiale L, Messina S, Jaeken J, Fiumara A, Wevers RA, Bertini E, Matthijs G, Lefeber DJ. DPM2-CDG: a muscular dystrophy-dystroglycanopathy syndrome with severe epilepsy. Ann Neurol 2013; 72:550-8. [PMID: 23109149 DOI: 10.1002/ana.23632] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
OBJECTIVE Congenital disorders of glycosylation (CDG) are a group of metabolic diseases due to defects in protein and lipid glycosylation. We searched for the primary defect in 3 children from 2 families with a severe neurological phenotype, including profound developmental delay, intractable epilepsy, progressive microcephaly, severe hypotonia with elevated blood creatine kinase levels, and early fatal outcome. There was clinical evidence of a muscular dystrophy-dystroglycanopathy syndrome, supported by deficient O-mannosylation by muscle immunohistochemistry. METHODS Biochemical and molecular methods were combined to pinpoint the defect in the glycosylation pathway in the endoplasmic reticulum. RESULTS Metabolic investigations revealed CDG-I, pointing to a defect in protein N-glycosylation in the endoplasmic reticulum. Analysis of lipid-linked oligosaccharides in fibroblasts showed accumulation of Dol-PP-GlcNAc(2) -Man(5) . DNA analysis revealed mutations in DPM2, 1 of the subunits of the dolichol-phosphate-mannose (DPM) synthase; the patient in the first family is compound heterozygous for 2 mutations (c.68A>G, predicting a missense mutation p.Y23C and c.4-1G>C, a splice mutation), whereas the patients in the second family are homozygous for the same missense mutation (c.68A>G, p.Y23C). INTERPRETATION We describe a new CDG, due to a deficiency of DPM2. Hence, mutations have now been described in the genes for the 3 subunits of DPM: DPM1, DPM2, and DPM3, whereby DPM2-CDG links the congenital disorders of glycosylation to the congenital muscular dystrophies.
Collapse
Affiliation(s)
- Rita Barone
- Pediatric Neurology, Department of Pediatrics, University of Catania, Catania, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Di Fabio R, Santorelli F, Bertini E, Balestri M, Cursi L, Tessa A, Pierelli F, Casali C. Infantile childhood onset of spinocerebellar ataxia type 2. Cerebellum 2012; 11:526-30. [PMID: 21975856 DOI: 10.1007/s12311-011-0315-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Spinocerebellar ataxia type 2 (SCA2) is a late-onset autosomal dominant cerebellar ataxia caused by triplet CAG/CTG expansion in the ATX2 gene. The initial symptoms usually appear when subjects are in their 30s.Pediatric onset is less common and usually associated with larger triplet expansions. We here report the case of a 1-year-old girl who presented with facial dysmorphism,dystonic features, developmental delay, and retinitis pigmentosa.She was diagnosed as carrying an expanded CAG/CTG tract (92 repeats) before a molecular diagnosis of SCA2 was made in her father. Facial dysmorphism associated with developmental delay and retinitis pigmentosa in early childhood should prompt a careful family investigation for ataxia and study of ATX2.
Collapse
Affiliation(s)
- Roberto Di Fabio
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Via Francesco Faggiana 34, Latina, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Stevanin G, Tesson C, Nawara M, Salih M, Zaki M, Mundwiller E, Al Balwi M, Boukhris A, Bouhouche A, Martin E, Elmalik S, Alswaid A, Mochel F, Santorelli F, Benomar A, Al Rasheed S, Mhiri C, Gleeson J, Darios F, Durr A, Brice A. Combination of Positional Cloning and New Generation Sequencing Identifies 3 Novel Genes in Spastic Paraplegia Involved in Common Metabolic Pathways (P01.205). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p01.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
18
|
Santoro L, Manganelli F, Fortunato MR, Soldovieri MV, Ambrosino P, Iodice R, Pisciotta C, Tessa A, Santorelli F, Taglialatela M. A new Italian FHM2 family: clinical aspects and functional analysis of the disease-associated mutation. Cephalalgia 2011; 31:808-19. [PMID: 21398422 DOI: 10.1177/0333102411399351] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To describe a new FHM kindred, and to analyse the functional consequences of the disease-associated ATP1A2 p.G301R mutation in human cellular models grown at 37°C. PATIENTS AND METHODS Seven patients were clinically evaluated and gave informed consent for molecular analysis. Extra-pyramidal rigidity of the limbs was present in four subjects and in three of them tongue apraxia was also observed. ATP1A2 and CACNA1A were analysed by direct sequencing. Functional consequences of the mutation were investigated by cell viability assays, Western blots, and immunocytochemistry. Three-dimensional models of the human Na(+)/K(+)-ATPase α2 subunit were generated by homology modelling using SWISS-MODEL. FINDINGS Analysis of ATP1A2 showed a heterozygous mutation, c.901G>A predicting the replacement of arginine for glycine at residue 301 (p.G301R). Functional analysis suggested that the mutation completely abolished Na(+)/K(+)-ATPase function. CONCLUSIONS The phenotypic spectrum of our FHM2 family includes some peculiar features. Functional data confirm that Na(+)/K(+)-ATPase haploinsufficiency caused by the ATP1A2 p.G301R mutation is responsible for FHM in the described family.
Collapse
Affiliation(s)
- Lucio Santoro
- Department of Neurological Sciences, University Federico II of Naples, Via Sergio Pansini 5, Naples, Italy.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Quinzii CM, López LC, Gilkerson RW, Dorado B, Coku J, Naini AB, Lagier-Tourenne C, Schuelke M, Salviati L, Carrozzo R, Santorelli F, Rahman S, Tazir M, Koenig M, DiMauro S, Hirano M. Reactive oxygen species, oxidative stress, and cell death correlate with level of CoQ10 deficiency. FASEB J 2010; 24:3733-43. [PMID: 20495179 DOI: 10.1096/fj.09-152728] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Coenzyme Q(10) (CoQ(10)) is essential for electron transport in the mitochondrial respiratory chain and antioxidant defense. The relative importance of respiratory chain defects, ROS production, and apoptosis in the pathogenesis of CoQ(10) deficiency is unknown. We determined previously that severe CoQ(10) deficiency in cultured skin fibroblasts harboring COQ2 and PDSS2 mutations produces divergent alterations of bioenergetics and oxidative stress. Here, to better understand the pathogenesis of CoQ(10) deficiency, we have characterized the effects of varying severities of CoQ(10) deficiency on ROS production and mitochondrial bioenergetics in cells harboring genetic defects of CoQ(10) biosynthesis. Levels of CoQ(10) seem to correlate with ROS production; 10-15% and >60% residual CoQ(10) are not associated with significant ROS production, whereas 30-50% residual CoQ(10) is accompanied by increased ROS production and cell death. Our results confirm that varying degrees of CoQ(10) deficiency cause variable defects of ATP synthesis and oxidative stress. These findings may lead to more rational therapeutic strategies for CoQ(10) deficiency.
Collapse
Affiliation(s)
- Catarina M Quinzii
- Department of Neurology, Columbia University Medical Center, 630 W. 168th St., P&S 4-423, New York, NY 10032, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Tessa A, Pennisi E, Cassandrini D, Rizza T, Wittig I, Fattori F, Meschini M, Bertini E, Santarelli L, Bruno C, Carrozzo R, Schägger H, Santorelli F. M.P.1.04 A novel mtDNA mutation in COIII impairs assembly of cytochrome c oxidase in a MELAS patient. Neuromuscul Disord 2007. [DOI: 10.1016/j.nmd.2007.06.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
21
|
Curbo S, Lagier-Tourenne C, Carrozzo R, Palenzuela L, Lucioli S, Hirano M, Santorelli F, Arenas J, Karlsson A, Johansson M. Human mitochondrial pyrophosphatase: cDNA cloning and analysis of the gene in patients with mtDNA depletion syndromes. Genomics 2006; 87:410-6. [PMID: 16300924 DOI: 10.1016/j.ygeno.2005.09.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2005] [Revised: 08/29/2005] [Accepted: 09/27/2005] [Indexed: 11/20/2022]
Abstract
Pyrophosphatases (PPases) catalyze the hydrolysis of inorganic pyrophosphate generated in several cellular enzymatic reactions. A novel human pyrophosphatase cDNA encoding a 334-amino-acid protein approximately 60% identical to the previously identified human cytosolic PPase was cloned and characterized. The novel enzyme, named PPase-2, was enzymatically active and catalyzed hydrolysis of pyrophosphate at a rate similar to that of the previously identified PPase-1. A functional mitochondrial import signal sequence was identified in the N-terminus of PPase-2, which targeted the enzyme to the mitochondrial matrix. The human pyrophosphatase 2 gene (PPase-2) was mapped to chromosome 4q25 and the 1.4-kb mRNA was ubiquitously expressed in human tissues, with highest levels in muscle, liver, and kidney. The yeast homologue of the mitochondrial PPase-2 is required for mitochondrial DNA maintenance and yeast cells lacking the enzyme exhibit mitochondrial DNA depletion. We sequenced the PPA2 gene in 13 patients with mitochondrial DNA depletion syndromes (MDS) of unknown cause to determine if mutations in the PPA2 gene of these patients were associated with this disease. No pathogenic mutations were identified in the PPA2 gene of these patients and we found no evidence that PPA2 gene mutations are a common cause of MDS in humans.
Collapse
MESH Headings
- Amino Acid Sequence
- Blotting, Northern
- Calcium Chloride/pharmacology
- Cell Line, Tumor
- Chromosome Mapping
- Chromosomes, Human, Pair 4/genetics
- Cloning, Molecular
- DNA, Complementary/chemistry
- DNA, Complementary/genetics
- Diphosphates/metabolism
- Female
- Gene Expression Regulation, Enzymologic
- Green Fluorescent Proteins/genetics
- Green Fluorescent Proteins/metabolism
- HeLa Cells
- Humans
- Hydrolysis/drug effects
- Inorganic Pyrophosphatase/genetics
- Inorganic Pyrophosphatase/metabolism
- Isoenzymes/genetics
- Isoenzymes/metabolism
- Mitochondrial Myopathies/enzymology
- Mitochondrial Myopathies/genetics
- Mitochondrial Myopathies/pathology
- Mitochondrial Proteins/genetics
- Mitochondrial Proteins/metabolism
- Molecular Sequence Data
- Protein Sorting Signals/genetics
- Pyrophosphatases/antagonists & inhibitors
- Pyrophosphatases/genetics
- Pyrophosphatases/metabolism
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- RNA, Small Interfering/genetics
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Syndrome
- Transfection
Collapse
Affiliation(s)
- Sophie Curbo
- Division of Metabolic Disorders, Karolinska Institute, Stockholm, Sweden
| | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Mercuri E, Topaloglu H, Brockington M, Berardinelli A, Pichiecchio A, Santorelli F, Rutherford M, Talim B, Ricci E, Voit T, Muntoni F. Spectrum of Brain Changes in Patients With Congenital Muscular Dystrophy and FKRP Gene Mutations. ACTA ACUST UNITED AC 2006; 63:251-7. [PMID: 16476814 DOI: 10.1001/archneur.63.2.251] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVES To report the spectrum of brain magnetic resonance imaging findings in 13 patients with congenital muscular dystrophy and FKRP gene mutations and to explore possible genotype-phenotype correlations. DESIGN We retrospectively reviewed brain magnetic resonance imaging in patients with congenital muscular dystrophy and FKRP gene mutations. PATIENTS Thirteen patients with congenital muscular dystrophy and mutations in the FKRP gene. RESULTS Five of the 13 patients had the typical phenotype originally described for congenital muscular dystrophy (MDC1C) with normal intelligence and normal brain magnetic resonance imaging while 3 other patients had isolated cerebellar cysts and mental retardation without any other sign of posterior fossa of supratentorial abnormalities. In the remaining 5 patients cerebellar cysts were associated with structural brain changes involving the posterior fossa and the cortex, ranging from focal unilateral periventricular nodular heterotopia to marked cerebellar dysplasia and pontine hypoplasia. In 2 of these 5 patients the severity and distribution of changes resembled muscle-eye-brain disease in 1 patient who had mild Walker-Warburg syndrome. The distribution of FKRP gene mutations identified in this group of patients did not reveal any obvious association with the severity of central nervous system involvement. CONCLUSIONS The severity of central nervous system involvement observed in our patients in contrast broadly reflected the severity of the disruption of alpha-dystroglycan glycosylation. In particular, dystroglycan expression was almost absent in the patients with muscle-eye-brain diseaselike phenotype and less severely reduced in the patients with congenital muscular dystrophy (MDC1C) with or without cerebellar cysts. This study further highlights the central role that dystroglycan has in neuronal migration.
Collapse
Affiliation(s)
- Eugenio Mercuri
- Dubowitz Neuromuscular Centre, Department of Paediatrics, Imperial College, Hammersmith Hospital Campus, London, United Kingdom
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Yamauchi T, Santorelli F. Recovery of methicillin-resistant Staphylococcus aureus (MRSA) from dogs and cats. Am J Infect Control 2005. [DOI: 10.1016/j.ajic.2005.04.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
24
|
Serretti A, Cusin C, Cristina S, Lorenzi C, Lilli R, Lattuada E, Grieco G, Costa A, Santorelli F, Barale F, Smeraldi E, Nappi G. Multicentre Italian family-based association study on tyrosine hydroxylase, catechol-O-methyl transferase and Wolfram syndrome 1 polymorphisms in mood disorders. Psychiatr Genet 2003; 13:121-6. [PMID: 12782971 DOI: 10.1097/01.ypg.0000056172.32550.f9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of the present study was to investigate tyrosine hydroxylase, catechol-O-methyl transferase and Wolfram syndrome 1 genes in mood disorders using a family-based association approach. METHODS The sample included 134 nuclear mood disorder families, with subjects affected by bipolar disorder (n=103) or major depressive disorder (n=58). All subjects were genotyped using polymerase chain reaction techniques. RESULTS No significant transmission disequilibrium was found in the overall sample for any polymorphism. Analysis considering bipolar subjects only, or psychopathology traits as affection status did not influence the observed results. CONCLUSIONS The study could not support the involvement of tyrosine hydroxylase, catechol-O-methyl transferase and Wolfram syndrome 1 polymorphisms in mood disorders.
Collapse
Affiliation(s)
- Alessandro Serretti
- Department of Psychiatry, Vita-Salute University, San Raffaele Institute, Milan, Italy
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Santoro L, Manganelli F, Lanzillo R, Pierelli F, Barbieri F, Santorelli F. Abstracts of the 8th Meeting of the Italian Peripheral Nerve Study Group: 48. J Peripher Nerv Syst 2003. [DOI: 10.1046/j.1529-8027.2003.00048.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
26
|
Fortini D, Cricchi F, Di Fabio R, Damiano M, Comanducci G, Benedetti L, Valoppi M, Grieco GS, D'Eugenio O, Celato A, Santorelli F, Casali C, Amabile GA, Pierelli F. Current insights into familial spastic paraparesis: new advances in an old disease. Funct Neurol 2003; 18:43-9. [PMID: 12760414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Hereditary spastic paraparesis (HSP) comprises a clinically and genetically heterogeneous group of disorders characterized by progressive spasticity and hyperreflexia of the lower limbs. The past few years have witnessed an exponential increase in knowledge of this disease and we can now list 19 loci mapped on the human genome and eight genes cloned. However, this wider knowledge of the molecular basis of HSP has had limited impact on clinical practice: the use of antispastic drugs and regular physiotherapy still remain crucial in the therapeutic management of patients. Nonetheless, the identification of new genes mutated in HSP furthers comprehension of the pathomechanisms involved and helps in genetic counseling, especially of asymptomatic individuals who request molecular analyses.
Collapse
Affiliation(s)
- Daniela Fortini
- Department of Neurology and Otolaryngology, University "La Sapienza", Rome, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Serretti A, Cristina S, Lilli R, Cusin C, Lattuada E, Lorenzi C, Corradi B, Grieco G, Costa A, Santorelli F, Barale F, Nappi G, Smeraldi E. Family-based association study of 5-HTTLPR, TPH, MAO-A, and DRD4 polymorphisms in mood disorders. Am J Med Genet 2002; 114:361-9. [PMID: 11992558 DOI: 10.1002/ajmg.10356] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Variants of the functional polymorphism in the serotonin transporter (upstream regulatory region: 5-HTTLPR), the tryptophan hydroxylase (TPH), the monoamine oxidase A (MAO-A), and the dopamine receptor D4 (DRD4) genes have all been associated with mood disorders. The aim of this study was to test those hypotheses by using a family-based association approach. Both diagnoses and psychopathology were used for phenotype definitions. A total of 134 nuclear families with mood disorders, with probands affected by bipolar (n = 103) or major depressive (n = 58) disorders, were included in the study. All subjects were typed for the above-mentioned gene variants using polymerase chain reaction (PCR) technique. No significant transmission disequilibrium was found in the overall sample for any polymorphism. A separate analysis of bipolar subjects only, or the use of continuous psychopathologic traits as affectation status did not influence the observed results. Our study did not support the involvement of 5-HTTLPR, TPH, MAO-A, or DRD4 polymorphisms in mood disorders.
Collapse
Affiliation(s)
- Alessandro Serretti
- Department of Psychiatry, Vita-Salute University, San Raffaele Institute, Milan, Italy.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Giordano C, Pallotti F, Walker WF, Checcarelli N, Musumeci O, Santorelli F, d'Amati G, Schon EA, DiMauro S, Hirano M, Davidson MM. Pathogenesis of the deafness-associated A1555G mitochondrial DNA mutation. Biochem Biophys Res Commun 2002; 293:521-9. [PMID: 12054632 DOI: 10.1016/s0006-291x(02)00256-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The pathogenic mechanisms of the A1555G mitochondrial DNA mutation in the 12S rRNA gene, associated with maternally inherited sensorineural deafness, are largely unknown. Previous studies have suggested an involvement of nuclear factor(s). To address this issue cybrids were generated by fusing osteosarcoma cells devoid of mtDNA with enucleated fibroblasts from two genetically unrelated patients. Furthermore, to determine the contribution, if any, of the mitochondrial and nuclear genomes, separately or in combination, in the expression of the disease phenotype, transmitochondrial fibroblasts were constructed using control and patient's fibroblasts as nuclear donors and homoplasmic mutant or wild-type cybrids as mitochondrial donors. Detailed analysis of mutant and wild-type cybrids from both patients and transmitochondrial fibroblast clones did not reveal any respiratory chain dysfunction suggesting that, if nuclear factors do indeed act as modifier agents, they may be tissue-specific. However, in the presence of high concentrations of neomycin or paromomycin, but not of streptomycin, mutant cells exhibit a decrease in the growth rate, when compared to wild-type cells. The decrease did not correlate with the rate of synthesis or stability of mitochondrial DNA-encoded subunits or respiratory chain activity. Further studies are required to determine the underlying biochemical defect.
Collapse
Affiliation(s)
- Carla Giordano
- Department of Neurology, College of Physicians and Surgeons, Columbia University, Room 5-431, 630 West 168th Street, Columbia, NY 10032, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Barbieri F, Pellecchia MT, Esposito E, Di Stasio E, Castaldo I, Santorelli F, Perretti A, Santoro L, De Michele G. Adult-onset familial laryngeal abductor paralysis, cerebellar ataxia, and pure motor neuropathy. Neurology 2001; 56:1412-4. [PMID: 11376202 DOI: 10.1212/wnl.56.10.1412] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Two brothers presented with late-onset cerebellar ataxia and severe dysphonia. Brain MRI showed vermian and hemispheric cerebellar atrophy. Laringofiberscopy revealed laryngeal abductor paralysis in both patients. Neurophysiologic studies showed a pure motor neuropathy. The combined findings and the molecular analysis suggest a new familial disorder. Inheritance is most likely autosomal recessive, but X-linked transmission is also possible.
Collapse
Affiliation(s)
- F Barbieri
- Department of Neurological Sciences, Federico II University, Naples, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
30
|
|
31
|
Bertini E, des Portes V, Zanni G, Santorelli F, Dionisi-Vici C, Vicari S, Fariello G, Chelly J. X-linked congenital ataxia: a clinical and genetic study. Am J Med Genet 2000; 92:53-6. [PMID: 10797423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
We report on a family in which two males are affected with X-linked congenital ataxia (XCA). Clinical manifestations include severe hypotonia at birth, delay of early motor development, slow eye movements, and nonprogressive cerebellar ataxia. The neurological examination excluded a neuromuscular disease, mental retardation, and pyramidal tract involvement. Neuroimaging showed global cerebellar atrophy in both patients that was not evident in the first years of life. The clinical findings in this family are very similar to those in a Russian pedigree [Illarioskin et al., 1996: Ann Neurol 40:75-83] and outline a recognizable phenotype. Linkage studies in our family, using 28 highly polymorphic Généthon microsatellite markers evenly distributed along the X chromosome, excluded a 24 cM interval between DXS990 and DXS424 located within the previous candidate region of 54 cM, reducing the critical interval.
Collapse
Affiliation(s)
- E Bertini
- Department of Neurosciences, Unit of Molecular Medicine, Bambino Gesu' Children's Hospital, Rome, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
32
|
Filla A, De Michele G, Orefice G, Santorelli F, Trombetta L, Banfi S, Squitieri F, Napolitano G, Puma D, Campanella G. A double-blind cross-over trial of amantadine hydrochloride in Friedreich's ataxia. Neurol Sci 1993; 20:52-5. [PMID: 8467430 DOI: 10.1017/s0317167100047417] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We performed a double-blind cross-over study with amantadine hydrochloride in 12 patients with Friedreich's disease and 2 with autosomal dominant cerebellar ataxia. Patients were randomly assigned to a placebo-amantadine or amantadine-placebo sequence. The interval between the treatments was two weeks. Patients were graded according to a functional ataxia scoring scale and videotaped in basal conditions and 90 min after a single oral dose of 100 mg amantadine or placebo. Three evaluators independently scored the videotapes. Statistical analysis showed no significant effect of amantadine in Friedreich's disease.
Collapse
Affiliation(s)
- A Filla
- Department of Neurology, Second School of Medicine, Federico II University, Naples, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
De Michele G, Filla A, Coppola N, Bisogno A, Trombetta L, Santorelli F, Campanella G. Influence of age, gender, height and education on vibration sense. A study by tuning fork in 192 normal subjects. J Neurol Sci 1991; 105:155-8. [PMID: 1757791 DOI: 10.1016/0022-510x(91)90139-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We measured perception time of the vibratory stimulus from a 128 cps tuning fork in 96 male and 96 female normal subjects equally subdivided into 8 age decades. The following sites were examined: clavicula, olecranon, styloid apophysis of ulna and radius, anterosuperior spina of ilium, rotula (patella), internal and external malleolus. Reproducibility between different examiners and between tests by the same examiner on different days was good. There was a marked regional variation with longer perception times at the distal regions of upper limbs. A non linear age-related decrease in vibration sense was found in all regions. Males had longer perception times at clavicula, females at distal limbs; the latter finding might be explained by shorter stature in females. Perception times at distal limbs were longer in subjects with higher education levels. The study provides normative data for vibration sense in different regions and defines the effects on it of age, gender, height and education.
Collapse
Affiliation(s)
- G De Michele
- Department of Neurology, Second School of Medicine, University of Naples, Italy
| | | | | | | | | | | | | |
Collapse
|
34
|
Filla A, De Michele G, Cavalcanti F, Santorelli F, Santoro L, Campanella G. Intrafamilial phenotype variation in Friedreich's disease: possible exceptions to diagnostic criteria. J Neurol 1991; 238:147-50. [PMID: 1869890 DOI: 10.1007/bf00319681] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Three families are described which include members with "typical" Friedreich's disease (FD) and others who are ataxic but do not satisfy all the diagnostic criteria for that disease. In family A two patients have an early-onset, rapidly progressive FD, while two others have a late-onset, more benign form. In families B and C one member has "typical" FD, and another has a similar ataxic syndrome, except for preservation of knee jerks. Laboratory evaluation is consistent with the diagnosis of FD in all cases. FD diagnosis appears justified in secondary cases with late onset or preserved tendon reflexes, provided that the index case fulfils all diagnostic criteria. Whether the diagnosis of FD is tenable in sporadic "atypical" cases remains to be seen. Echocardiographic and neurophysiological examination may be valuable in classifying such cases.
Collapse
Affiliation(s)
- A Filla
- Department of Neurology, Second School of Medicine, University of Naples, Italy
| | | | | | | | | | | |
Collapse
|
35
|
De Michele G, Filla A, Barbieri F, Perretti A, Santoro L, Trombetta L, Santorelli F, Campanella G. Late onset recessive ataxia with Friedreich's disease phenotype. J Neurol Neurosurg Psychiatry 1989; 52:1398-401. [PMID: 2614435 PMCID: PMC1031598 DOI: 10.1136/jnnp.52.12.1398] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The Quebec Cooperative Study on Friedreich's ataxia required an onset before age 20 as an obligatory criterion of Friedreich's disease (FD). Harding included patients with onset before 25 years. We studied nine patients with FD phenotype but with onset ranging from 21 to 29 years (mean 24.4). Statistical analysis of the distribution and intrafamilial variation of onset age suggests that late onset Friedreich's disease (LOFD) is a distinct genetic entity or results from modifying genes in some families. Scoliosis was less common in LOFD than FD patients but otherwise the clinical picture was similar.
Collapse
Affiliation(s)
- G De Michele
- Department of Neurology, Second School of Medicine, Naples, Italy
| | | | | | | | | | | | | | | |
Collapse
|