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Spinocerebellar ataxia associated with a mutation in the fibroblast growth factor 14 gene (SCA27): A new phenotype
Author(s) -
Brusse Esther,
de Koning Inge,
MaatKievit Anneke,
Oostra Ben A.,
Heutink Peter,
van Swieten John C.
Publication year - 2006
Publication title -
movement disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.352
H-Index - 198
eISSN - 1531-8257
pISSN - 0885-3185
DOI - 10.1002/mds.20708
Subject(s) - spinocerebellar ataxia , neuroscience , ataxia , paroxysmal dyskinesia , cerebellum , dyskinesia , psychology , movement disorders , mutation , atrophy , medicine , genetics , pathology , biology , parkinson's disease , gene , disease
Autosomal dominant cerebellar ataxias (ADCAs) are genetically classified into spinocerebellar ataxias (SCAs). We describe 14 patients of a Dutch pedigree displaying a distinct SCA‐phenotype (SCA27) associated with a F145S mutation in the fibroblast growth factor 14 (FGF14) gene on chromosome 13q34. The patients showed a childhood‐onset postural tremor and a slowly progressive ataxia evolving from young adulthood. Dyskinesia was often present, suggesting basal ganglia involvement, which was supported by functional imaging in 1 patient. Magnetic resonance imaging (MRI) of the brain showed only moderate cerebellar atrophy in the 2 eldest patients. Neuropsychological testing indicated low IQ and deficits in memory and executive functioning. Behavioral problems were also observed. Further investigations will have to determine the role of FGF14 in the pathogenesis of neurodegeneration and the frequency of this FGF14 mutation in SCA. © 2005 Movement Disorder Society