异丙酚对大鼠肺缺血／再灌注损伤的保护作用

目的研究异丙酚对肺缺血／再灌注损伤的保护作用。方法复制肺缺血再灌注损伤大鼠模型。将成年Wistar大鼠随机分为3组，A组为假手术组；B组为肺缺血一再灌注组，C组为畀丙酚组，每组15只。用酶联免疫吸附（ELISA）法检测支气管肺泡灌洗液（BALF）中TNF-α、IL-6的含量。同时对各纽动物血气和肺湿／干重比（W／D）进行检测。结果异丙酚能明显改善缺血再灌注动物的血氧分压，减少肺W／D值，降低BALF中TNF-α、IL-6含量。结论异丙酚抑制肺缺血再灌注时炎性细胞因子的表达，从而减轻细胞因子介导的炎性损伤，具有肺保护作用。

The protective effect of propofol on pulmonary ischemia/reperfusion injury

Objective To study the protective effects of propofol against ischemia/reperfusion injury in rat lung. Methods Rat model of pulmonary ischemia/reperfusion injury was used in this study. Rats were randomly divided into three groups, including sham opera-tion group (group A), iachemia/reperfusion group (group B) and propofol group (group C), 15 rats in each group. The concentration of tumor necrosis factor -α and interleukin-6 in bronchoalveolar lavage fluid (BALF) were measured by enzyme linked immunosorbent assay (ELISA). Then blood gas analysis, lung wet/dry (W/D) weight ratio were detected in each group. Results Propofol could significantly improve PaO2, reduce the W/D value and the contents of TNF-α and IL-6 in BALF. Conclusion Propofol effectively suppressed the pro-duction and release of inflammatory cytokine, therefore it can protect the lung from isehemia/reperfusion injury.