Minimum prevalence of spinocerebellar ataxia 17 in the north east of England

被引：21

作者：

Craig, K

Keers, SM

Walls, TJ

Curtis, A

Chinnery, PF

机构：

[1] Univ Newcastle Upon Tyne, Inst Human Genet, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[2] Newcastle Gen Hosp, Dept Neurol, Reg Nanosci Ctr, Newcastle Upon Tyne NE4 6BE, Tyne & Wear, England

来源：

JOURNAL OF THE NEUROLOGICAL SCIENCES | 2005年 / 239卷 / 01期

关键词：

spinocerebellar ataxia; ADCA; SCA; 17; TBP; TATA-binding box;

D O I：

10.1016/j.jns.2005.08.009

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Objective: To determine the minimum prevalence of spinocerebellar ataxia type 17 (SCA 17) in the north east of England. Patients and methods: A defined region containing 2,516,500 individuals with 192 families with undiagnosed ataxia, 90 patients with a Huntington's disease-like phenotype and 292 controls. The number of (CAG/CAA)(n) repeats in the SCA17/TBP gene was determined by fluorescent PCR and sequenced in affected individuals. Results: The mean repeat size for 584 control alleles was 34 (S.D.= 3.58), ranging from 25 to 40. Two index cases had larger alleles with repeat lengths greater than the control range. Affected family members presented in adult life with ataxia followed by extrapyramidal features and cognitive impairment. In one family 44 repeats were associated with a younger age of onset than has been previously described. Conclusions: The minimum prevalence of SCA17 in the north east of England was 0.16/100,000 (upper 95% confidence interval 0.31/ 100,000). (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：105 / 109

页数：5

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