血管紧张素转换酶基因多态性在北方汉族、达斡尔族、鄂温克族中的分布

目的：观察血管紧张素转换酶（ACE）基因多态性在北方汉族、达斡尔族和鄂温克族中的分布。方法：采用聚合酶链反应（PCR）检测90例北方汉族，84例达斡尔族和64例鄂温克族ACE基因内含子16的插入/缺失多态标记，得到三种基因型：插入/缺失杂合子（ID）、缺失纯合子（DD）、插入纯合子（Ⅱ）。结果：北方汉族ACE基因频率ID27.8%、DD17.8、Ⅱ54.4%，达斡尔族ID60.7%、DD26.2%、Ⅱ13.1%；鄂温克族ID70.3%、DD21.9%、Ⅱ7.8%。结论：中国北方汉族与达斡尔族和鄂温克族间ACE基因多态性存在差异。

Distribution of angiotensin converting enzyme gene polymorphism among Northern Hans, Daurs, and Ewenkis

AIM: To observe the polymorphism of angiotensin-converting enzyme (ACE) gene in Northern Hans, Dahurs, and Ewenkis of China. METHODS: The polymerase chain reaction was used to type the insertion/ deletion polymorphism at intron 16 of ACE gene among 90 Northern Hans, 84 Dahurs, and 64 Ewenkis individuals. The experiment displayed the distribution in three kinds of ACE genotype: ID (heterozygotes of insertion and deletion), DD (homozygotes of deletion), and n (homozytes of insertion). RESULTS: In Northern Hans the percentages of the distributing ACE I/D genotype were ID 27.8 %, DD 17.8 %, and II 54.4 % . The I/D genotype frequency of Dahurs individuals were ID 60.7 %, DD 26.2 %, and II 13.1 %. The Ewenkis genotype frequency were ID 70.3 %, DD 21.9 % , and II 7.8 % . CONCLUSION: The polymorphism of ACE gene of Northern Hans is different from that of Dahurs and Ewenkis in China.