血管紧张素转换酶基因多态性与儿童原发性高血压的关系

目的：探讨血管紧张素转换酶(ACE)基因第16内含子中287 bp的插入/缺失（I/D）多态性与儿童原发性高血压的关系。方法：应用聚合酶链式反应（PCR）技术检测105例原发性高血压儿童（高血压组）及105例正常健康儿童（对照组）的ACE基因第16内含子中287 bp的I/D多态性。结果：高血压组及对照组儿童的ACE基因第16内含子均有I/D多态性,分为II、ID、DD 3种形态。高血压组DD型、ID型、II型基因型频率分别为30.5%、47.6%、21.9%,对照组DD型、ID型、II型基因型频率分别为14.3%、46.7%、39.1%,两组比较,DD型、II型基因型频率差异有统计学意义（P＜0.01）。高血压组D等位基因的基因频率明显高于对照组（54.3% vs 37.6%,P<0.01）;而I等位基因的基因频率明显低于对照组（45.7% vs 62.4%,P<0.01）。结论：ACE基因存在II型、ID型、DD型多态性。儿童原发性高血压的发生可能与ACE基因中第16内含子287 bp的缺失相关。

Relationship between angiotensin converting enzyme gene polymorphism and essential hypertension in children

Objective To study the relationship between insertion/deletion(I/D) polymorphism of 287 bp in the 16th intron of angiotensin converting enzyme(ACE) and essential hypertension in children.Methods I/D polymorphism of 287 bp in the 16th intron of ACE was detected using PCR in 105 children with essential hypertension and 105 normal children as control group.Results There was an I/D polymorphism in the 16th intron of ACE in the hypertension and the control groups: type II,type ID and type DD.The genotype freque...