[Clinical feature and molecular genetics of hereditary spinocerebellar ataxia].

Abstract excerpt

Hereditary spinocerebellar ataxia (SCA) is a cluster of heterogeneous disorders. At now, 29 dominant loci have been assigned. Responsible genes and mutations are determined in at least 14 of them. In recessive and X-linked SCAs, 15 loci have been mapped, and mutation in each gene is determined by 6 disorders. Molecular mechanism of those SCAs are variable. Generally, deletion, insertion, or substitution in a gene...

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