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目的:探讨秋水仙碱(Col)于在体条件下对重组人肿瘤坏死因子α(TNF-α)所致动物肝毒性的影响。方法:将18只雄性BALB/c小鼠随机分为A~C3组,腹腔注射D-氨基半乳糖(GalN)700mg/kg致敏,1h后再次腹腔注射TNF-α50μg/kg诱发急性肝坏死。A组小鼠于TNF-α给药前19和4h分别腹腔注射生理盐水作为对照,B和C组则按相同时间分别灌服或腹腔注射Col0.5mg/kg。给药8h后测定小鼠血清丙氨酸转氨酶(ALT)和甘氨酸结合胆汁酸(GCA),并观察小鼠肝脏的病理改变。结果:TNF-α注射8h后C组ALT及GCA水平明显低于A组(P<0.05),而B组与A组无明显差别;C组小鼠肝脏病理损害程度亦较A组和B组明显减轻(P<0.01)。结论:Col对TNFα所致的动物肝毒性具有预防作用。
Objective: To investigate the effects of colchicine (Col) on hepatotoxicity induced by recombinant human tumor necrosis factor-α (TNF-α) in vivo. METHODS: Eighteen male BALB/c mice were randomly divided into groups A to C3 and sensitized with intraperitoneal injection of D-galactosamine (GalN) at 700 mg/kg. After 1 h, acute hepatic necrosis was induced by intraperitoneal injection of TNF-α at 50 μg/kg. In group A mice, normal saline was injected intraperitoneally at 19 and 4 hours before TNF-α administration, while group B and C were fed or intraperitoneally injected with Col 0.5 mg/kg at the same time. After 8 hours of administration, serum alanine aminotransferase (ALT) and glycine-conjugated bile acid (GCA) were measured, and the pathological changes of the mouse liver were observed. Results: The levels of ALT and GCA in group C were significantly lower than those in group A (P<0.05) after 8 h injection of TNF-α. There was no significant difference between group B and group A. The degree of liver pathological damage in group C was also higher than that of group A. B group was significantly reduced (P <0.01). Conclusion: Col has a preventive effect on liver toxicity induced by TNFα in animals.