Center for Neurologic Diseases, Harvard Medical School and Brigham & Women's Hospital, Cambridge, Massachusetts, USA.
Mov Disord. 2011 Oct;26(12):2283-6. doi: 10.1002/mds.23934. Epub 2011 Sep 23.
Mutations in the α-synuclein gene (SNCA) cause autosomal dominant forms of Parkinson's disease, but the substantial risk conferred by this locus to the common sporadic disease has only recently emerged from genome-wide association studies.
We genotyped a prioritized noncoding variant in SNCA intron 4 in 344 patients with Parkinson's disease and 275 controls from the longitudinal Harvard NeuroDiscovery Center Biomarker Study.
The common minor allele of rs2736990 was associated with elevated disease susceptibility (odds ratio, 1.40; P = .0032).
This result increases confidence in the notion that in many clinically well-characterized patients, genetic variation in SNCA contributes to "sporadic" disease.
α-突触核蛋白基因 (SNCA) 的突变导致常染色体显性形式的帕金森病,但该基因座对常见散发性疾病的巨大风险仅最近才从全基因组关联研究中显现出来。
我们对来自纵向哈佛神经发现中心生物标志物研究的 344 名帕金森病患者和 275 名对照者的 SNCA 内含子 4 中的优先非编码变异进行了基因分型。
常见的 rs2736990 次要等位基因与疾病易感性升高相关(比值比,1.40;P =.0032)。
这一结果增加了这样一种观念的可信度,即在许多临床特征良好的患者中,SNCA 的遗传变异导致了“散发性”疾病。