复方甘草酸苷对小鼠暴发性肝功能衰竭的保护作用

Protective effect of SNMC on mice with fulminant liver failure

目的 探讨复方甘草酸苷(SNMC)对小鼠暴发性肝功能衰竭(FLF)的保护作用。 方法 用D-氨基半乳糖和脂多糖腹腔注射构建FLF小鼠模型。观察SNMC对实验性FLF小鼠血清丙氨酸氨基转移酶(ALT)、白蛋白(Alb)、总胆红素(TBil)、肿瘤坏死因子α(TNFα)、一氧化氮(NO)、内皮素-1(ET-1)、白细胞介素-6(IL-6)和肝脏病理情况及存活率的影响。 结果 D-氨基半乳糖和脂多糖可以构建FLF小鼠模型,SNMC大、中、小剂量组及不同给药时间组在降低酶学指标及血清TNF α(F=52.84,P<0.01)、NO(F=15.81,P<0.01)、ET-1(F=15.68,P<0.01)、IL-6(F=15.32,P<0.01)水平,以及改善肝组织的衰竭程度方面(F=4.51,P<0.01)与模型组比较,差异均有统计学意义。SNMC大、中、小剂量以小剂量较好,不同给药时间以同时给药较好,但不同剂量和不同给药时间之间差异无统计学意义。模型组和保护组之间存活率的差异有统计学意义(P<0.01)。 结论 结果表明SNMC对FLF小鼠有明显保护作用,可改善D-氨基半乳糖和脂多糖所致的肝细胞病理性凋亡及坏死程度,并抑制各种因子所介导的炎症反应,从而降低FLF的病死率。

Objective To investigate the protective effect of stronger neo-minophagen C (SNMC) on fulminant liver failure (FLF). Methods D-Gal N and LPS were injected once into the abdominal cavity of rats to establish an experimental model of FLF. The level of plasma ALT, Alb, TBil, TNF α, NO, ET-1, IL-6 and liver histopathology of the rats were examined. Results In the D-Gal N and LPS model of FLF, there was an obvious decline of plasma TNF α (F = 52.84), NO (F = 15.81), ET-1 (F = 15.68), IL-6 (F = 15.32) and there was less hepatic tissue damage in SNMC-treated groups using different doses (high dose, medium dose, low dose) and at different times (pre-protection, simultaneous protection, post-protection) compared with those not treated with SNMC (P < 0.01). These results indicated that SNMC could be used to treat FLF. It was better to use a low dose of SNMC and use it at the same time as inducing the FLF. There were no differences in the results of those treated with SNMC of different dosages and treated at different times (P > 0.05). Conclusion SNMC can decrease the mortality of FLF by preventing hepatocyte apoptosis induced by D-Gal N and LPS and inhibit liver inflammation caused by all kinds of factors.