Htra2基因内含子5-59A/G位点多态性与帕金森病的相关性研究

目的探讨粤西地区汉族人群中Htra2（又被称作Omi）基因内含子5-59A/G位点(rs2241027)的单核苷酸多态性（SNP）与帕金森病（PD）的相关性。方法采用聚合酶链反应-限制性片段长度多态性（PCR-RFLP）技术，检测56例PD患者和109例健康人的Htra2基因内含子5-59A/G位点多态性的基因型。结果病例组A等位基因频率(46.4%)倾向高于对照组（36.7%）（P=0.073）；AA基因型频率（21.4%）亦倾向高于对照组（11.0%）（P=0.072）。经性别分层分析发现，男性AA基因型频率（25.7%）高于对照组（10.3%）(P=0.041)；病例组A等位基因频率（48.6%）倾向高于对照组（34.6%）(P=0.051)。结论5-59A/G位点等位基因A和AA基因型均可能增加PD的发病风险，特别是男性。

Association of 5-59A/G Polymorphism in Intron Region of Htra2 Gene with Parkinson's Disease

ObjectiveTo evaluate the association between the single-nucleotide polymorphism (SNP) of the 5-59A/G (rs2241027) of Htra2 gene and Parkinson's disease in Han population of the western GuangDong province. MethodsThe restriction fragment length polymorphism (PCR-RFLP) was used to determine the 5-59A/G polymorphism in the intron region of Htra2 gene in the case group (n=56) and healthy control group (n=109). ResultsA allele frequency of 5-59 A/G in cases (46.4%) was trended to more than that in controls (36.7%) (P=0.073), as well as the AA genotyping frequency (21.4% vs 11.0%, P=0.072). For the male, the frequency of AA genotype was significantly more in cases (25.7%) than that in controls (10.3%） (P=0.041), and the frequency of A allele was trended to more in cases (48.6%) than in controls (34.6%) (P=0.051). ConclusionA allele and AA genotype of the 5-59A/G (rs2241027) of Htra2 gene may increase the risk of suffering from Parkinson's disease, especially for males.