高血压合并左心室肥厚患者血管紧张素转化酶基因多态性研究

目的探讨血管紧张素转换酶(ACE)基因多态性与高血压合并左心室肥厚(LVH)的关系。方法应用聚合酶链反应(PCR)技术对150名健康人(normotensivecontrols,NT)与152例原发性高血压病无合并症患者及80例高血压合并左心室肥厚患者ACEI/D基因多态性进行检测;利用超声心动图检测左心室质量(LVM)并计算左心室质量指数(LVMI)。结果原发性高血压非肥厚组及左心室肥厚组的ACE基因的D等位基因的频率为0.493及0.514,显著高于对照组的0.333(P<0.05)。结论ACE基因缺失多态性可能是高血压合并LVH易患性的危险因子。

A Study on Angiotensin Converting Enzyme Gene Polymorphisms in Essential Hypertension Patients with Left Ventricular Hypertrophy

Objective To explore the relationship between the polymorphism of angiotensin converting enzyme (ACE) gene and essential hypertension complicated with left ventricular hypertrophy (LVH). Methods ACE gene I/D polymorphism in 150 healthy subjects, 80 essential hypertensive(ET)patients with LVH and 152 ET patients without LVH was detected by PCR. Left ventricular mass (LVM) was measured by echocardiography, and then left ventricular mass index (LVMI) was calculated. Results The frequencies of the ACE D allele in the ET patients with or without LVH were 0.493 and 0.514, respectively, and significantly higher than those in the healthy subjects (P<0.05). Conclusion ACE gene I/D polymorphism may be a risk factor for essential hypertension complicated with left ventricular hypertrophy.