胆维丁乳对酵母多糖致多器官功能衰竭小鼠肝脏的作用

摘要

目的 研究胆维丁乳对酵母多糖致多器官功能衰竭小鼠肝脏损伤的作用.方法 C57 BL/6源性野生小鼠36只,随机分为阴性对照(CON)组、胆维丁乳(CCE)组、酵母多糖(Z)组、CCE+Z组,每组各9只.CON组及Z组纯水喂养,CCE组及CCE+Z组应用胆维丁乳(20μL溶于200 mL纯水)避光喂养.14 d后Z组及CCE+Z组酵母多糖(500 mg/kg)腹腔注射.18 h后处死各组小鼠,留肝脏标本行病理组织学检查;检测各组小鼠血清中谷丙转氨酶(ALT)含量;应用Western blotting、实时PCR方法测定各组小鼠肝脏组织白细胞介素6(IL-6)、白细胞介素18(IL-18)表达.结果 病理组织学显示,CCE+Z组组织损伤较Z组轻,较对照组重.与CON组比较,血清ALT水平Z组、CCE+Z组升高;而CCE组降低,差异均具有统计学意义(均P<0.05).IL-6、IL-18蛋白与mRNA表达结果显示,与CON组及CCE+Z组比较Z组明显升高,差异具有统计学意义(均P<0.05).结论 胆维丁乳对酵母多糖致肝脏损伤能够起到一定的保护作用.%Objective To study the effect of cholecalciterol cholesterol emulsion(CCE)in the zymosan(Z)-induced acute hepatic injury. Meth-ods A total of 36 C57 BL/6 mice were randomly divided into 4 groups,namely negative control(CON)group,CCE group,Z group and CCE+Z group,respectively. There were 9 mice in each group. Mice from CON group and Z group were fed with pure water. Mice from CCE group and CCE+Z group were fed with cholecalciterol cholesterol emulsion 20μL dissolved in 200 mL pure water which was kept in darkness. After 14 days, Z group and CCE+Z group were injected with zymosan at a dose of 500 mg/kg. After 18 hours,all the mice in each group were sacrificed. The liver tissues were harvested for histopathological examination. The serum ALT levels were determined. The molecular expression of IL-6 and IL-18 in liv-er tissue of mice were evaluated by Western blotting and real-time quantitative PCR method. Results The results of histopathological examination showed that liver tissue damage in CCE+Z group was lighter than that of Z group ,and heavier than that of the CON group. Compared to the CON group,Z group had the highest serum ALT level,followed by CCE+Z group,while in Z group was significantly lower than that in CON group(all P<0.05). The expression of IL-6 and IL-18 protein and mRNA showed level of Z group was apparently higher than those of CON group and CCE+Z group(all P<0.05). Conclusion Cholecalciterol cholesterol emulsion can play certain protective effect on zymosan-induced liver injury in mice.