白头翁汤对放射性肠炎小鼠的抗炎和抗凋亡作用的实验研究

被引:15
作者
高颖 [1 ]
王遥 [1 ]
安佰平 [1 ]
井海亮 [1 ]
陈海若 [1 ]
黄文博 [1 ]
李卓虹 [1 ,2 ]
机构
[1] 成都中医药大学附属医院
[2] 成都中医药大学
关键词
白头翁汤; 放射性肠炎; 炎症因子; 细胞凋亡;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的 探讨白头翁汤对C57BL/6小鼠放射性肠炎的保护作用及其相关机制。方法 采用X射线照射建立放射性肠炎模型。将32只雄性C57BL/6小鼠(20±2)g随机分为4组:对照组(Control)、模型组(Model)、地塞米松组(DEX,0.12mg/kg)和白头翁汤组(BTWD,7.5g/kg)。除对照组外,所有小鼠建模并均灌胃给药,连续7d。HE染色和Masson染色用于评价结肠形态学和胶原纤维的变化。ELISA法检测血清IL-1β、IL-6、TNF-α、LPS、COX水平。此外,Western blot和qRT-PCR检测细胞凋亡相关蛋白和基因Bax、Bcl-2、Caspase-3、Cyto-c水平。结果 白头翁汤治疗可减少坏死脱落的上皮细胞,减轻黏膜隐窝层受损组织纤维化程度;白头翁汤干预后抑制了血清促炎因子(IL-6、TNF-α、COX)的水平;白头翁汤能显著改善结肠细胞凋亡,提高抗凋亡蛋白和基因Bcl-2的表达以及下调促凋亡蛋白和基因Bax、Caspase-3和Cyto-c的表达。结论 白头翁汤可通过减轻炎症和减少结肠细胞凋亡来改善结肠组织纤维化,从而改善小鼠放射性肠炎。
引用
收藏
页码:827 / 830
页数:4
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