Article
Delineating the pathogenic threshold and phenotypic spectrum of SCA27B: findings from a large French-Canadian cohort.
Journal of neurology - 20 Sept 2025
Iruzubieta Pablo, Pellerin David, Ashton Catherine, Villa Felipe, Renaud Mathilde, Dicaire Marie-Josée, Danzi Matt C, Aldecoa Mayra, Mathieu Jean, Massie Rami, Chalk Colin H, Lafontaine Anne-Louise, Evoy François, Rioux Marie-France, Brisson Jean-Denis, Boycott Kym M, Houlden Henry, Synofzik Matthis, La Piana Roberta, Zuchner Stephan, Duquette Antoine, Brais Bernard
Abstract excerpt
BACKGROUND: Autosomal dominant spinocerebellar ataxia 27B (SCA27B), caused by an intronic (GAA•TTC) repeat expansion in FGF14, is a common cause of late-onset cerebellar ataxia, but its genotypic and phenotypic spectrum remains to be fully established. METHODS: We analysed the FGF14 (GAA•TTC) repeat expansion in a cohort of 134 patients with ataxia and 822 controls from Quebec. We conducted segregation study in...
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- Humans
- Male
- Female
- Middle Aged
