期刊
JOURNAL OF MOVEMENT DISORDERS
卷 9, 期 3, 页码 129-135出版社
KOREAN MOVEMENT DISORDERS SOC
DOI: 10.14802/jmd.16028
关键词
Episodic ataxia; KCNA1; CACNA1A
资金
- Basic Science Research Program through the National Research Foundation of Korea - Ministry of Education [NRF-2015R1D1A1A01060559]
Episodic ataxia (EA) is a clinically heterogeneous group of disorders that are characterized by recurrent spells of truncal ataxia and incoordination lasting minutes to hours. Most have an autosomal dominant inheritance pattern. To date, 8 subtypes have been defined according to clinical and genetic characteristics, and five genes are known to be linked to EAs. Both EA1 and EA2, which are caused by mutations in KCNA1 and CACNA1A, account for the majority of EA, but many patients with no identified mutations still exhibit EA-like clinical features. Furthermore, genetically confirmed EAs have mostly been identified in Caucasian families. In this article, we review the current knowledge on the clinical and genetic characteristics of EAs. Additionally, we summarize the phenotypic features of the genetically confirmed EA2 families in Korea.
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