Mutations in rare ataxia genes are uncommon causes of sporadic cerebellar ataxia.

Mutations in rare ataxia genes are uncommon causes of sporadic cerebellar ataxia.
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DOI:
10.1002/mds.24064
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发表时间:
2012-03
期刊:
影响因子:
8.6
通讯作者:
Coppola, Giovanni
Coppola, Giovanni
中科院分区:
医学1区
文献类型:
--
作者:
Fogel, Brent L.;Lee, Ji Yong;Lane, Jessica;Wahnich, Amanda;Chan, Sandy;Huang, Alden;Osborn, Greg E.;Klein, Eric;Mamah, Catherine;Perlman, Susan;Geschwind, Daniel H.;Coppola, Giovanni

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散发性共济失调在三级医疗机构中很常见,尽管进行了广泛的评估,但仍有相当大的比例未确定。罕见的遗传性共济失调,仅在特定人群或家族中报道,可能导致一定比例的散发性共济失调。对常见遗传性共济失调(SCA 1、SCA 2、SCA 3、SCA 6、SCA 7和/或Friedreich共济失调)检测阴性的成人型散发性共济失调患者,使用分层筛选方法评估7种罕见共济失调基因的变异。我们对患者进行了SYNE 1(n=80)和TGM 6(n=118)突变、LMNB 1(n=40)和SETX(n=11)拷贝数变异、SACS(n=39)和PDYN(n=119)序列变异以及脊髓小脑共济失调31型五核苷酸插入(n=101)的筛查。总的来说,我们确定了一名患者与LMNB 1重复,一名患者与PDYN变异,和一个复合SACS杂合子,包括一个新的变种。罕见的遗传性共济失调检查,在我们的三级保健人群中,并没有显着的贡献散发性小脑共济失调。
Sporadic-onset ataxia is common in a tertiary care setting but a significant percentage remains unidentified despite extensive evaluation. Rare genetic ataxias, reported only in specific populations or families, may contribute to a percentage of sporadic ataxia. Patients with adult-onset sporadic ataxia, who tested negative for common genetic ataxias (SCA1, SCA2, SCA3, SCA6, SCA7, and/or Friedreich ataxia), were evaluated using a stratified screening approach for variants in seven rare ataxia genes. We screened patients for published mutations in SYNE1 (n=80) and TGM6 (n=118), copy number variations in LMNB1 (n=40) and SETX (n=11), sequence variants in SACS (n=39) and PDYN (n=119), and the pentanucleotide insertion of spinocerebellar ataxia type 31 (n=101). Overall, we identified one patient with a LMNB1 duplication, one patient with a PDYN variant, and one compound SACS heterozygote, including a novel variant. The rare genetic ataxias examined here do not significantly contribute to sporadic cerebellar ataxia in our tertiary care population.
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