脑梗死患者凝血因子ⅫExon1-46C/T基因多态性

Journal of Wenzhou Medical University(2017)

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Abstract
目的:探讨凝血因子Ⅻ(FⅫ)基因Exon1-46C/T多态性与脑梗死的相关性及对机体纤溶功能的影响.方法:采用直接测序法测定脑梗死组(60例)与正常对照组(60例)的FXII基因46C/T多态性,同时采用自动血凝仪测定FXII活性(FⅫ:C)、纤溶酶原活性(PLG:A)、纤维蛋白原(FIB)及D-二聚体(D-D)含量等指标.结果:脑梗死组比正常对照组中46TT明显升高,且2组间多态性分布比较差异有统计学意义(P<0.05).通过基因型单因素分析,脑梗死患者中T等位基因危险性是C等位基因的1.865倍,TT基因型危险性为结合(CC+CT)基因型的3.021倍.与正常对照组比较,脑梗死组46TT基因型FXII:C明显下降,D-D含量升高,PLG:A下降(P<0.05),但脑梗死患者FXII多态性各型之间的D-D指标差异无统计学意义(P>0.05).结论:FXII基因46TT多态性与脑梗死的发生有关联,其可导致FXII活性明显下降,致使机体的纤溶功能受影响.
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