Objective To investigate expression of endothelin?1 (ET?1) and nitric oxide synthase(NOS) gene in gastric mucosa in the rats with cirrhosis and portal hypertensive gastropathy (PHG) after disconnective operation.

• 目的研究肝硬化门静脉高压性胃病（PHG）大鼠断流术后胃粘膜内皮素?1（ET?1）、一氧化氮合酶（NOS）的基因表达，探讨ET?1、NO是否参与断流术后PHG局部微循环改变。