Do CTG expansions at the SCA8 locus cause ataxia?

被引:33
作者
Schöls, L
Bauer, I
Zühlke, C
Schulte, T
Kölmel, C
Bürk, K
Topka, H
Bauer, P
Przuntek, H
Riess, O
机构
[1] Ruhr Univ Bochum, St Josef Hosp, Neurol Klin, D-44791 Bochum, Germany
[2] Univ Rostock, Dept Med Genet, Rostock, Germany
[3] Med Univ Lubeck, Inst Human Genet, D-23538 Lubeck, Germany
[4] Schlosspk Klin, Dept Psychiat, Berlin, Germany
[5] Univ Tubingen, Dept Neurol, D-7400 Tubingen, Germany
[6] Stadt Krankenhaus Munchen Bogenhausen, Dept Neurol, Munich, Germany
[7] Univ Tubingen, Dept Med Genet, Tubingen, Germany
关键词
D O I
10.1002/ana.10608
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
To evaluate the significance of expanded CTG repeats at the SCA8 locus, we analyzed the allele distribution in 1,262 German ataxia patients. We found intermediate and expanded CTG repeats with similar frequencies in ataxia patients with and without established genetic diseases. One family linked to the SCA8 locus showed incomplete penetrance and an association of smaller CTG repeats with more severe disease. Our data question the disease-causing character of CTG expansions for SCA8 and advise great caution in genetic testing.
引用
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页码:110 / 115
页数:6
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