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Pharmacogenetic landscape of clopidogrel in north Indians suggest distinct interpopulation differences in allele frequencies

机译:北印度人氯吡格雷的药理学研究表明等位基因频率存在明显的群体间差异

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Aim: Clopidogrel, a widely used antiplatelet drug, exhibits high interindividual variability; more than 80% of which could be explained by genetic polymorphisms. We built an allele frequency map of variants affecting clopidogrel response in north Indians. Materials & methods: We mined a cross-sectional population-scale genome-wide dataset of 2128 Indo-Europeans residing in north India for presence of variants associated with pharmacogenetics of clopidogrel. Results: Our analysis reveals significant differences in population-scale allele frequencies between Indians and the global population. Indians had a higher allele frequency for variants in the CYP2C9*2, CYP2C9*3 and P2RY1 genes whereas lower frequency for the ABCB1, CYP1A2, CYP2C19*2C, CYP3A5 and PON1 genes compared with the global population. Furthermore, from our study we proposed a model to explain the higher prevalence of clopidogrel metabolizers in north Indians. Conclusion: This is the largest population-scale genetic epidemiology study that provides a high-resolution map of variants associated with clopidogrel response that could be potentially valuable to clinicians to rationally plan appropriate dosage for therapy in resource poor conditions based on population level allele frequencies. Original submitted 29 August 2013; Revision submitted 2 December 2013
机译:目的:氯吡格雷,一种广泛使用的抗血小板药物,具有很高的个体差异性。其中80%以上可以通过遗传多态性解释。我们建立了影响北印度人氯吡格雷反应的变异体的等位基因频率图。材料和方法:我们收集了居住在印度北部的2128个印度裔欧洲人的横断面人口规模的全基因组数据集,其中存在与氯吡格雷药物遗传学相关的变异体。结果:我们的分析显示,印度人与全球人口之间的人口规模等位基因频率存在显着差异。与全球人群相比,印度人在CYP2C9 * 2,CYP2C9 * 3和P2RY1基因中具有较高的等位基因频率,而在ABCB1,CYP1A2,CYP2C19 * 2C,CYP3A5和PON1基因中具有较低的等位基因频率。此外,根据我们的研究,我们提出了一个模型来解释北印度人中氯吡格雷代谢物的较高患病率。结论:这是最大的人群规模的遗传流行病学研究,提供了与氯吡格雷反应相关的变异体的高分辨率图,这对于临床医生根据人群水平的等位基因频率合理规划资源贫乏情况下的合理剂量可能具有潜在的价值。原件于2013年8月29日提交;修订于2013年12月2日提交

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