[Relationship between changes of endogenous nitric oxide synthase inhibitor and hydrolase and initiation of pre-eclampsia].

Objective: To investigate the role of dimethylarginine dimethylaminohydrolase-2 (DDAH-2)/asymmetric dimethylarginine (ADMA) in pathophiology of preeclampsia by detecting expression of DDAH-2 in placenta and serum plasma ADMA.

Methods: From Jan. 2004 to Jan.