采用聚合酶链反应检测各198例北方汉族和鄂温克族中血管紧张素转换酶基因插入/缺失多态性分布,结果北方汉族ID、DD、Ⅱ基因频率是27.8%、17.8%、54.4%,D及Ⅰ等位基因频率为32.2%、67.8%;鄂温克族人群ID、DD、Ⅱ基因频率是70.3%、21.9%、7.8%,D及Ⅰ等位基因频率为57.8%、42.2%。表明北方汉族与鄂温克族人群ACE基因多态性和等位基因频率均存在明显差异(P<0.05)。 The genotypes of ACE gene insertions / deletions in 198 Han and Ewenki ethnic groups in northern China were detected by polymerase chain reaction. The frequencies of ID, DD, and Ⅱ genes were 27.8%, 17.8% and 54.4% The frequencies of ID, DD, and Ⅱ genes were 70.3%, 21.9% and 7.8%, respectively. The frequency of D and I alleles was 57.8% and 42.2% respectively. The results showed that ACE gene polymorphisms and allele frequencies were significantly different among North Han and Ewenki populations (P <0.05).