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Review
. 2007 Apr;27(2):133-42.
doi: 10.1055/s-2007-971172.

Dominantly inherited ataxias: lessons learned from Machado-Joseph disease/spinocerebellar ataxia type 3

Henry L Paulson  1
Affiliations
Review

Dominantly inherited ataxias: lessons learned from Machado-Joseph disease/spinocerebellar ataxia type 3

Henry L Paulson. Semin Neurol. 2007 Apr.

Abstract

To date, nearly 30 distinct genetic forms of dominantly inherited ataxia are known to exist. Of these, Machado-Joseph disease (MJD), also known as spinocerebellar ataxia type 3 (SCA3), is perhaps the most common in many regions of the world including the United States. This article discusses MJD/SCA3 as a paradigm example of the dominant ataxias, which are collectively known as the spinocerebellar ataxias. Using MJD/SCA3 as a starting point, the article reviews common clinical and genetic features of the SCAs and highlights new insights into molecular mechanisms, especially of the SCAs caused by polyglutamine expansion. Also discussed are current and future therapeutic opportunities for MJD/SCA3 in particular, many of which have relevance to other SCAs.

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