维吾尔族、哈萨克族、汉族人群 CYP2C19基因多态性分析

目的：确定 CYP2C19在维吾尔族、哈萨克族、汉族人群中的基因型及等位基因分布特征。方法选取该院干部内二科住院体检患者750例，采用聚合酶链‐限制性片段长度多态性方法分析 CYP2C19基因多态性，了解基因型和代谢型分布在3个民族间的差异性。结果检测到 CYP2C19的不同代谢型在维吾尔族、哈萨克族、汉族间分布差异有统计学意义（P ＜0．05）。哈萨克族快代谢型基因频率为93．8％，高于汉族（89．0％）；慢代谢型基因频率为6．2％，低于汉族（11．0％），差异有统计学意义（P＝0．006）。结论在维吾尔族、哈萨克族、汉族人群中，CYP2C19的代谢型和基因型分布有显著差异，可指导临床个体化用药。

Analysis of genetic polymorphism of cytochrome CYP2C19 in Chinese Uighur,Kazak and Han populations

Objective To identify the genotype and allele distribution feature of cytochrome CYP2C19 in Chinese Uighur , Kazak and Han populations ,and by detecting the CYP2C19 genotype .Methods Finding out the differences of genotype distribution among the three Chinese nationalities .The 750 inpatients were selected from Second Department of Internal Medicine ,Cadres Ward of First Affiliated Hospital of Xinjiang Medical University .The CYP2C19 genotypes of the unrelated patients were assessed by pol‐ymerase chain reaction and restriction fragment length polymorphism .Results Six different CYP2C19 genotypes were determined in this study .There was a significant difference among the three Chinese nationalities (P< 0 .05) .The rate of fast metabolism type in Kazak is 93 .8% more than the rate of Han populations .The rate of slow metabolism type in Kazak is 6 .2% less than the rate of Han populations .The difference was statistically significant (P= 0 .006) .Conclusion Nationality has significant effect on genetic polymorphism of CYP2C19 in Chinese Uighur ,Kazakand and Han populations .