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Genetic determinants of warfarin dosing in the Han-Chinese population

机译:汉族人群华法林剂量的遗传决定因素

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摘要

Warfarin, a widely prescribed oral anticoagulant, is used for the prevention of thromboembolism. Polymorphisms in CYP2C9 and VKORC1 have been shown to be associated with warfarin dose requirements. However, it is likely that other genes could also affect warfarin dose. Aims: In this study, we aimed to identify additional genes influencing warfarin dosing in the Han-Chinese population. Materials & methods: In this study, we screened for SNPs in 13 genes (VKORC1, CYP2C9, CYP2C18, PROC, APOE, EPHX1, CALU, GGCX, ORM1, ORM2, factor II, factor VII and CYP4F2) and tested their associations with warfarin dosing with univariate and multiple regression analysis. Results: Polymorphisms in the VKORC1 gene have the strongest effects on warfarin dose, followed by CYP2C9*3. In addition, our results showed that CYP2C18, PROC and EPHX1 have small but significant associations with warfarin dose. In multiple regression analysis, PROC and EPHX1 explained 3% of the dose variation. The incorporation of these two genes into warfarin dosing algorithms could improve the accuracy of prediction in the Han-Chinese population.
机译:华法林是一种广泛使用的口服抗凝药,可用于预防血栓栓塞。 CYP2C9和VKORC1的多态性已被证明与华法林的剂量需求有关。但是,其他基因也可能会影响华法林剂量。目的:在这项研究中,我们旨在鉴定影响汉族人群华法林剂量的其他基因。材料与方法:在这项研究中,我们筛选了13个基因(VKORC1,CYP2C9,CYP2C18,PROC,APOE,EPHX1,CALU,GGCX,ORM1,ORM2,因子II,因子VII和CYP4F2)中的SNP,并测试了它们与华法林的关联用单变量和多元回归分析进行给药。结果:VKORC1基因多态性对华法林剂量的影响最大,其次是CYP2C9 * 3。此外,我们的结果表明,CYP2C18,PROC和EPHX1与华法林剂量之间存在较小但显着的关联。在多元回归分析中,PROC和EPHX1解释了3%的剂量变化。将这两个基因整合到华法林给药算法中可以提高汉族人群预测的准确性。

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