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。