四氯化碳皮下注射诱导兔肝硬化模型的建立

Development of Rabbit Liver Cirrhosis by Carbon Tetrachloride Subcutaneous Injection

目的应用四氯化碳(CCl4)皮下注射方法,建立兔肝硬化动物模型。方法 50只雄性新西兰大白兔随机分为实验组(n=35)和对照组(n=15)。实验组臀部皮下注射50%CCl4橄榄油0.23 mL/kg,每周2次,对照组注射等量橄榄油。分别于4 w、8 w和12 w末检测各组兔肝脏功能及组织病理学变化。结果随时间延长,实验组兔肝脏纤维化程度逐渐加重,血清谷丙转氨酶(ALT)、谷草转氨酶(AST)和γ-谷氨酰转肽酶(GGT)明显升高,12 w末出现白蛋白/球蛋白比例倒置,可观察到典型肝硬化病理表现,兔肝组织出现典型的假小叶结构,动物死亡率20%,造模成功率83%。对照组肝脏功能正常,肝脏组织学结构正常。结论此方法可成功地建立兔肝硬化动物模型,该方法成功率高,可用于相关实验研究。

Objective To establish a liver cirrhosis animal model in rabbit through carbon tetrachloride subcutaneous injections. Methods Total 50 male rabbits were divided into 2 groups randomly. The experimental group （n = 35） were injected 50% CC14-olive oil subcutaneously with the dosage 0.23ml/kg in the gluteal region, twice a week. The same dosage of olive oil was injected in the control group by a same way. The liver function test and the histopathology were investigated at the end of 4,8,12weeks. Results The hepatic fibrosis progressed gradually as continuous injection of the toxin. The ALT,AST, GGT increased obviously. At the end of 12 weeks,the albumin/globulin ratio was reversed. A typical pathology of liver cirrhosis was detected. In the control group the liver function and histology were normal. The mortality is 20% at the end of experiment and the aehievement ratio of animal model is 83%. Conclusion The rabbit liver cirrhosis model can be established by subcutaneous injection of carbon tetrachloride. This animal model can be used in liver cirrhosis experiment.