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缺血再灌注（I／R）损伤临床上常见，本实验通过观察肝脏I／R前后亚硝酸盐含量及一氧化氮合成酶（NOS）活性的变化，以探讨NO在肝脏I／R损伤中的作用。材料与方法一、动物：雌性SD大鼠27只，体重150～2009，南京军区总医院实验动物中心提供，随机分为（l）假手术组；（2）缺血
Ischemia-reperfusion (I / R) injury is clinically common in this experiment by observing changes in liver nitrite content and nitric oxide synthase (NOS) activity before and after I / R to explore the role of NO in liver I / R injury Role. MATERIALS AND METHODS A. Animals: Twenty-seven female SD rats weighing 150-2009 were provided by Experimental Animal Center of Nanjing Military Region General Hospital and were randomly divided into (1) sham operation group, (2) ischemia