新疆哈萨克族RGS2基因1891-1892del TC多态性与原发性高血压关系的研究

目的 研究在新疆哈萨克族人群中G蛋白信号转导调节蛋白-2基因(regulator of G-protein signaling 2,RGS2)1891-1892del TC位点多态性与原发性高血压遗传易感性的关系.方法 采用病例(444例)-对照(489例)方法 进行关联分析,用TaqMan荧光实时定量PCR检测1891-1892del TC位点的基因型.结果 1891-1892del TC在该人群男性中(OR=1.698,P=0.03)以及总体人群中(OR=1.32,P=0.044)与高血压病显著相关;ID+DD基因型组的平均收缩压水平明显高于Ⅱ基因型组(P=0.04);DD和ID基因型组的血清尿酸水平均高于Ⅱ基因型组(P<0.01).结论 研究结果表明RGS2基因的D等位基因与新疆哈萨克族原发性高血压的遗传易感性相关,同时与血清尿酸水平升高相关.

Association between the regulator of G-protein signaling 2 gene 1891-1892del TC polymorphism with hypertension in Xinjiang Kazakh population

Objective To investigate the association of the 1891-1892del TC polymorphism of regulator of G-protein signalling 2 (RGS2) gene with hypertension in Xinjiang Kazakh population. Methods The case-control study was performed in 444 cases and 489 controls. The genotypes of the individuals in the 1891-1892del TC locus were identified by TaqMan method. Results A significant association was observed between the1891-1892TC insertion/deletion polymorphism with hypertension in men (OR = 1.698, P=0.03) and in the total population (OR= 1.32, P=0. 044). The mean systolic blood pressure and serum uric acid levels of the ID+DD carriers were significantly higher than that of the Ⅱ carriers (adjusted, P = 0.04and P<0.01). Conclusion The results suggest that the D allele of the 1891-1892TC insertion/deletion locus of the RGS2 gene might be an independent risk factor for hypertension in Xinjiang Kazakhs; and the polymorphism may have some influence on serum uric acid level in this population.