High prevalence of spinocerebellar ataxia type 1 (SCA1) in an isolated region of Japan

Y. Onodera, M. Aoki, T. Tsuda, H. Kato, T. Nagata, T. Kameya, Koji Abe, Y. Itoyama

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Autosomal dominant cerebeller ataxias (ADCAs) are a heterogeneous group of neurodegenerative disorders that differ in both the clinical manifestations and modes of inheritance. At present, eight different genes causing ADCAs have been found: spinocerebeller ataxia type 1 (SCA1), SCA2, SCA3/Machado-Joseph disease (MJD), SCA6, SCA7, SCA8, SCA12 and dentatorubropallidoluysian atrophy (DRPLA). The relative prevalence of each mutation varies according to race and native place. We studied 117 unrelated ADCA families that originated from the Tohoku District in the northernmost part of Honshu Island in Japan (mainly Miyagi Prefecture in the central part of Tohoku District). The SCA1 mutation was the most frequent among the known disorders (24.8% of all such families). The relative prevalence of SCA1 in the Tohoku District is very high compared with the values already reported from other regions in the world. Because the population of this area had seldom moved, the alleles with SCA1 mutations (including alleles with an intermediate CAG repeat number) are assumed to have been present in this area for a long time. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)153-158
Number of pages6
JournalJournal of the Neurological Sciences
Volume178
Issue number2
DOIs
Publication statusPublished - Sep 15 2000

Fingerprint

Spinocerebellar Ataxias
Ataxia
Japan
Mutation
Alleles
Machado-Joseph Disease
Islands
Neurodegenerative Diseases
Atrophy
Population
Genes

Keywords

  • Autosomal dominant
  • Japan
  • SCA1
  • Spinocerebeller ataxia

ASJC Scopus subject areas

  • Ageing
  • Clinical Neurology
  • Surgery
  • Neuroscience(all)
  • Developmental Neuroscience
  • Neurology

Cite this

Onodera, Y., Aoki, M., Tsuda, T., Kato, H., Nagata, T., Kameya, T., ... Itoyama, Y. (2000). High prevalence of spinocerebellar ataxia type 1 (SCA1) in an isolated region of Japan. Journal of the Neurological Sciences, 178(2), 153-158. https://doi.org/10.1016/S0022-510X(00)00390-7

High prevalence of spinocerebellar ataxia type 1 (SCA1) in an isolated region of Japan. / Onodera, Y.; Aoki, M.; Tsuda, T.; Kato, H.; Nagata, T.; Kameya, T.; Abe, Koji; Itoyama, Y.

In: Journal of the Neurological Sciences, Vol. 178, No. 2, 15.09.2000, p. 153-158.

Research output: Contribution to journalArticle

Onodera, Y. ; Aoki, M. ; Tsuda, T. ; Kato, H. ; Nagata, T. ; Kameya, T. ; Abe, Koji ; Itoyama, Y. / High prevalence of spinocerebellar ataxia type 1 (SCA1) in an isolated region of Japan. In: Journal of the Neurological Sciences. 2000 ; Vol. 178, No. 2. pp. 153-158.
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