CHCH10 mutations in an Italian cohort of familial and sporadic ALS patients
Neurobiology of Aging(2015)
Abstract
Mutations in CHCHD10 have recently been described as a cause of frontotemporal dementia (FTD) co-morbid with amyotrophic lateral sclerosis (ALS). The aim of this study was to assess the frequency and clinical characteristics of CHCHD10 mutations in Italian patients diagnosed with familial (n = 64) and apparently sporadic ALS (n = 224). Three apparently sporadic patients were found to carry c.100C\u003eT (p.Pro34Ser) heterozygous variant in the exon 2 of CHCHD10. This mutation had been previously described in two unrelated French patients with FTD-ALS. However, our patients had a typical ALS, without evidence of FTD, cerebellar or extrapyramidal signs, or sensorineural deficits. We confirm that CHCHD10 mutations account for ∼1% of Italian ALS patients and are a cause of disease in subject without dementia or other atypical clinical signs.
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