Late-onset SCA2: 33 CAG repeats are sufficient to cause disease

Citation
M. Fernandez et al., Late-onset SCA2: 33 CAG repeats are sufficient to cause disease, NEUROLOGY, 55(4), 2000, pp. 569-572
Citations number
10
Categorie Soggetti
Neurology,"Neurosciences & Behavoir
Journal title
NEUROLOGY
ISSN journal
00283878 → ACNP
Volume
55
Issue
4
Year of publication
2000
Pages
569 - 572
Database
ISI
SICI code
0028-3878(20000822)55:4<569:LS3CRA>2.0.ZU;2-Z
Abstract
SCA-2 is an autosomal dominant inherited disorder characterized by ataxia, slow saccades, and hyporeflexia. The authors evaluated a patient with a mil d balance problem with a SCA-2 allele sized at 33 CAG repeats. The authors then ascertained her 91 year-old mother, who showed disease onset at age 86 with an SCA-2 allele of identical size. Their study indicates that 33 CAG repeats can be pathogenic at the SCA-2 locus, though such an allele may pro duce an extremely late onset and gradual rate of disease progression.