槲皮素对刀豆蛋白A诱导小鼠急性肝损伤的保护作用

被引:8
作者
翁书强
姚群燕
李希
涂传涛
沈锡中
机构
[1] 复旦大学附属中山医院消化科
关键词
槲皮素; 刀豆蛋白A; 急性肝损伤; NADPH氧化酶4; 环氧合酶-2; 可诱导型一氧化氮合酶;
D O I
暂无
中图分类号
R96 [药理学];
学科分类号
100706 [药理学];
摘要
目的探讨槲皮素对刀豆蛋白A(Concanavalin A,Con A)诱导小鼠急性肝损伤的保护作用及其可能的分子机制。方法通过检测Con A注射后8 h血清转氨酶水平及肝组织病理学评估肝损伤;应用酶联免疫法(ELISA)检测TNF-α、IFN-γ、IL-4水平;定量PCR和Western blotting或免疫组织化学检测肝组织mRNA与蛋白的表达。结果与模型组相比,槲皮素预防组显著降低了血清转氨酶水平(P<0.05),且组织病理学分析表明肝脏炎症坏死程度明显减轻;与模型组相比,槲皮素预防组显著降低了血清促炎症细胞因子TNF-α、IFN-γ和IL-4的水平(P<0.01);槲皮素预防组肝组织NOX4、COX-2和i NOS基因与蛋白的表达均明显低于模型组(P<0.05)。结论槲皮素对Con A诱导小鼠急性肝损伤具有保护作用,其发挥有益作用的机制可能与抑制肝脏的炎症反应有关。
引用
收藏
页码:40 / 44
页数:5
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