Objective To compare the mRNA expression of endothelin-1(ET-1),ET-1 receptors ETA and ETB in placenta villous from normal pregnancy(NP) and pregnancy induced hypertension(PIH).

• 目的探讨妊娠高血压疾病患者胎盘绒毛组织内皮素-1(ET-1)及其受体(ETA、ETB)的mRNA表达,了解其与妊娠高血压疾病的关系。