Objective: To investigate the expression of endothelin l(ET 1) mRNA in the villus of pre eclampsia and the relationship between the ET 1 and pre eclampsia.

• 目的：研究重度妊娠高血压综合征（妊高征）患者胎盘绒毛组织中内皮素?1（ET?1）mRNA的表达，探讨ET?1与妊高征的关系。