Синдром CANVAS (мозжечковая атаксия, невропатия и вестибулярная арефлексия) - аутосомно-рецессивная атаксия с поздним дебютом, обусловленная носительством биаллельной экспансии (AAGGG)n во 2-м интроне гена RFC1. До настоящего момента отсутствуют сведения о распространенности данного заболевания в российских семьях. Нами был проведен поиск биаллельной экспансии AAGGG-повторов у 35 российских пациентов с поздней мозжечковой атаксией. Верифицированы 5 пациентов (14,3%) с синдромом CANVAS и характерной клинической картиной. CANVAS (cerebellar ataxia, neuropathy and vestibular areflexia) is a late-onset autosomal recessive ataxia due to biallelic (AAGGG)n repeat expansion in the 2nd intron of the RFC1 gene. There is no information on the CANVAS prevalence in Russian families. We searched for biallelic expansion of AAGGG repeats in 35 Russian patients with late-onset cerebellar ataxia. Five patients (14.3%) with CANVAS syndrome and a characteristic clinical picture were verified.
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