摘要目的 探讨血管紧张素Ⅱ-1型受体(AT1R)基因A1166-C、血管紧张素转换酶(ACE)基因插入/缺失(I/D)和醛固酮合成酶(CYP11B2)基因-344T/C位点多态性与妊娠期高血压疾病(HDCP)的相关关系.方法 采用聚合酶链反应-限制性内切酶片段长度多态性技术(PCR-RFLP),分别检测HDCP组86例和正常对照组175例AT1R基因A1166-C、ACE基因I/D和CYP11B2基因-344T/C突变位点的基因型.结果 HDCP组和正常对照组AT1R基因A1166-C、ACE基因I/D和CYPllB2基因-344T/C多态性18种组合的分布不同,构成比不同;这18种组合中,相对于AT1R-AA+ACE-Ⅱ+CYP 1182-TT基因型,携带AT1R-AA+ACE-DD+CYP11B2-TC基因型人群的OR值为7.289;携带AT1R-AC+ACE-ID+CYP11B2-TC基因型人群的OR值为5.315;携带AT1R.AC+ACE-DD+CYP11B2-TC基因型人群的OR值为5.694.其余联合基因型,差异均无统计学意义(P均0.05);或者由于样本量小,不具有代表性.结论 HDCP组和正常对照组AT1R基因A1166-C、ACE基因I/D和CYPllB2基因-344T/C多态性18种组合中,AT1R-AA+ACE-DD+CYP11B2-TC联合基因型、AT1R-AC+ACE-ID+CYP11B2-TC联合基因型、AT1R-AC+ACE-DD+CYP11B2-TC联合基因型可能增加HDCP的遗传易感性;HDCP的发生,可能是多个基因共同作用的结果 .

abstractsObjective To explore the relationship among genetic polymorphism of angiotension Ⅱ type 1 re-ceptor(AT1 R) A1166-C, angiotensin converting enzyme (ACE) insertion/deletion (I/D), aldosterone synthase (CYP11B2)-344T/C and hypertensive disorder complicating pregnancy.Methods Polymerase chain reaction-re-striction fragment length polymorphism (PCR-RFLP) assay was used to detect the genotypes of AT1 R A1166-C ,ACE (I/O) ,CYP11B2 -344T/C in 86 cases of hypertensive disorder complicating pregnancy and 175 cases of normal control.Results There was 18 combined types in hypertensive disorder complicating pregnancy cases and normal control cases.Compared to AT1R-AA + ACE-Ⅱ + CYP11B2-TT, Odds ratios (OR) of AT1R-AA + ACE-DO +CYP11B2-TC,AT1 R-AC + ACE-ID+CYP11B2-TC and AT1R-AC+ACE-DD+CYP11B2-TC are 7.289,5.315 and 5.694 respectively.There was no statistical significance among the others.Conclusion In all 18 kinds of combined types, AT1 R-AA + ACE-DO + CYP11B2-TC,AT1R-AC+ACE-ID+CYP11B2-TC and AT1 R-AC + ACE-DD +CYP11B2-TC might increase the susceptibility of hypertensive disorder complicating pregnancy.It is possible that multigenes are interacted in the etiology of hypertensive disorder complicating pregnancy.