Objective to study the effect of portal vein occlusion on intestinal mucosa barrier in rats and the protection of ulinastatin to the injury, to present the experimental data for the clinical surgery.

目的探讨阻断大鼠门静脉对肠屏障功能的影响以及乌斯它丁对其损害的保护作用，为临床门静脉阻断后肠屏障功能的保护提供实验依据。

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Conclusion no may be not the major reason to modulate small intestinal microcirculation after hepatic inflow occlusion.

结论NO可能不是肝门阻断后肠微循环调节的主要因素。

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