一种新的小鼠急性胰腺炎动物模型

A new acute pancreatitis mice model

目的 建立一种新的急性胰腺炎小鼠模型。方法 应用显微外科技术 ,对实验组动物行胰管导入及低浓度胆盐低压注射 ;术后 2 4h杀活评估胰腺炎症程度。对照组仅行剖腹术。结果 实验组动物表现为血清淀粉酶增高、胰腺组织髓过氧化物酶 (MPO )活性增高 ,胰腺的病理改变为组织水肿、出血、坏死及炎性细胞浸润。结论 该小鼠模型具有典型的急性胰腺炎病理特征 ,可用于急性胰腺炎实验研究。

Objective To develop a new severe but sublethal acute pancreatitis mice model. Methods The animals were divided into two groups: the bile acid injection group and the control group. In the bile acid injection group, acute necrotizing pancreatitis was induced by intraductal administration of 0.1 ml of 1.0 % bile acid under 30 cm H 2O pressure, while the controls underwent the sham operation. The structural and functional features of the pancreas were examined at 24 hours after surgery. Results Pancreatic edema, bleeding, acinar cell necrosis and inflammation accompanied with increased serum amylase and MPO were found in the bile acid injection animals. Conclusions The sublethal acute pancreatitis mice model is ideal for pathogenetic and therapeutic study of acute necrotizing pancreatitis.