1. Expanding the phenotype of SCA19/22: Parkinsonism, cognitive impairment and epilepsy
- Author
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Jean-Christophe Cuvellier, Marie Delliaux, Kathy Dujardin, Delphine Dellacherie, Bernard Sablonnière, Isabelle Strubi-Vuillaume, David Devos, Luc Defebvre, Vincent Huin, Audrey Riquet, Marine Brion, Caroline Moreau, Jean-Marie Cuisset, HUIN, Vincent, Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer - U837 (JPArc), Université Lille Nord de France (COMUE)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille, Pôle de Biologie Pathologie Génétique [CHU Lille], Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Troubles cognitifs dégénératifs et vasculaires - U 1171 (TCDV), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Service de Neurologie et Pathologies du Mouvement [CHU Lille], Service de neuropédiatrie [CHU Lille], Troubles cognitifs dégénératifs et vasculaires - U 1171 - EA 1046 (TCDV), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Centre de Recherche Jean-Pierre AUBERT Neurosciences et Cancer - U1172 Inserm - U837 (JPArc), Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Université Lille Nord de France (COMUE)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Biologie Pathologie et Génétique, Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Institut d'Immunologie [CHRU Lille], Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Pôle de Biologie Pathologie Génétique [CHU Lille], and Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Lille Nord de France (COMUE)-Université de Lille
- Subjects
Male ,0301 basic medicine ,Pediatrics ,Parkinson's disease ,[SDV]Life Sciences [q-bio] ,[SDV.GEN] Life Sciences [q-bio]/Genetics ,Mesh:Adult ,[SDV.BBM.BM] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology ,[SCCO]Cognitive science ,Epilepsy ,Mesh:Adolescent ,0302 clinical medicine ,Medicine ,Child ,Neurogenetics ,Mesh:Epilepsy/genetics ,Mesh:Aged ,Spinocerebellar Degenerations ,Aged, 80 and over ,[SDV.MHEP] Life Sciences [q-bio]/Human health and pathology ,medicine.diagnostic_test ,Parkinsonism ,Mesh:Spinocerebellar Degenerations/complications ,Cognition ,Middle Aged ,Mesh:Cognitive Dysfunction/genetics ,Pedigree ,3. Good health ,Phenotype ,Neurology ,Spinocerebellar ataxia ,[SDV.BBM.GTP] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,Female ,[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,medicine.symptom ,Adult ,Mesh:Female ,medicine.medical_specialty ,Adolescent ,Cognitive disorders ,Mesh:Child ,Mesh:Male ,[SDV.GEN.GH] Life Sciences [q-bio]/Genetics/Human genetics ,03 medical and health sciences ,Parkinsonian Disorders ,Mesh:Middle Aged ,[SDV.BBM.GTP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Genomics [q-bio.GN] ,Mesh:80 and over ,Humans ,Cognitive Dysfunction ,Quantitative Biology - Genomics ,[SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC] ,Aged ,Genetic testing ,Genomics (q-bio.GN) ,[SDV.GEN]Life Sciences [q-bio]/Genetics ,Cerebellar ataxia ,business.industry ,Mesh:Pedigree ,Mesh:Phenotype ,[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology ,[SCCO] Cognitive science ,medicine.disease ,Neuropsychiatric disorder ,Mesh:Humans ,030104 developmental biology ,KCND3 mutation ,[SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics ,Mesh:Parkinsonian Disorders/genetics ,Parkinson''s disease ,FOS: Biological sciences ,Neurology (clinical) ,Geriatrics and Gerontology ,business ,Neuroscience ,[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology ,030217 neurology & neurosurgery - Abstract
International audience; BACKGROUND: Spinocerebellar ataxia types 19 and 22 (SCA19/22) are rare conditions in which relatively isolated cerebellar involvement is frequently associated with cognitive impairment. Here, we report on new clinical features and provide details of the cognitive profile in two SCA19/22 families.METHODS: Two families displaying an autosomal-dominant form of cerebellar ataxia underwent clinical examinations and genetic testing.RESULTS: In addition to the classical clinical features of SCA, a wide spectrum of cognitive disorders (including visuospatial impairments) was observed. Eight patients had mild Parkinsonism, and five had epilepsy. Genetic testing showed that the KCND3 mutation (c.679_681delTTC, p.F227del) was present in both families.CONCLUSIONS: Our findings broaden the phenotypic spectrum of SCA19/22, and suggest that KCND3 should be included in the list of candidate genes for epilepsy, Parkinsonism and cognitive impairment.
- Published
- 2017
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