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摘要
Objective: Published data on the association between vitamin K epoxide reductase complex 1 (VKORC1)-1639G>A polymorphism and warfarin dose requirement are inconclusive. To derive a more precise estimation of the relationship, a meta-analysis was performed. Methods and results: Studies were identified in English-language articles by search of PubMed and Embase database (inception to July 2013). A total of 32 prospective clinical trials involving 5005 patients were identified and included for analysis. Overall, the weighted mean maintenance dosage of warfarin in patients with the -1639AA genotype decreased 2.62 mg/d compared with that in the -1639GG genotype patients (95% Cl -3.10 to -2.14; P< 0.00001) when 24 eligible studies were pooled into the meta-analysis. Furthermore, significantly lower warfarin dose requirement was found in patients with GA genotype versus GG genotype (WMD, -1.32; 95% Cl -1.67 to 0.96; P< 0.00001). In the subgroup analysis by ethnicity, statistically significant lower maintenance dosage of warfarin in patients with the M genotype versus GG genotype were found in both Caucasians (WMD, -2.47; 95% Cl -2.92 to -2.03; P< 0.00001) and Asians (VVMD, -2.84; 95% Cl -4.57 to -1.11; P= 0.001). Conclusions: This meta-analysis indicated that the VKORC1-1639G>A genetic polymorphism is associated with the variation of interindividual warfarin dose requirement in different ethnic populations.
- 出版日期2014-8
- 单位复旦大学
