Methods:Polymerase chain reaction(PCR) for detection of ACE gene polymorphism was performed to show the deletion/insertion between 52 cases with PIH and 100 normal subjects.

• 方法:对52例妊高征患者(观察组)及100例正常产妇,应用聚合酶链反应技术检测ACE基因的缺失/插入多态性。