Put rats to death after operation and treatment at 6h, 12h, 24h, 48h, 72h, 96h. The severity of pancreatitis was evaluated by quantitating serum amylase and observing pancreatic acinar cell necrosis.

• 术后分别给予胰炎合剂、乌司他丁、生理盐水进行治疗，造模后6h、12h、24h、48h、72h、96h处死大鼠，取血、胰腺及肺组织进行相关检测。