银杏酮酯预处理对心肌缺血再灌注大鼠心肌组织炎症相关细胞因子含量的影响

被引:28
作者
包怡敏 [1 ]
刘爱华 [1 ]
张志雄 [1 ]
李云 [2 ]
王星禹 [2 ]
机构
[1] 上海中医药大学基础医学院生理教研室
[2] 上海中医药大学科技实验中心
基金
国家高技术研究发展计划(863计划);
关键词
心肌缺血再灌注; 银杏酮酯; 白细胞介素6; 白细胞介素4; 肿瘤坏死因子α; 白细胞介素10; 大鼠;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
1008 ;
摘要
目的:探讨银杏酮酯(Ginkgo biloba extract 50,GBE50)预处理对大鼠心肌缺血再灌注损伤的保护作用及对炎症细胞因子和抗炎因子的影响。方法:58只SD大鼠分为假手术组,模型组,丹参组和低、中、高剂量GBE50组(n=8)。灌胃药物1周后,结扎冠状动脉左前降支30 min,再灌60 min建立大鼠心肌缺血再灌注模型。取心肌组织,HE染色观察心肌组织形态学变化,比色法检测心肌组织中髓过氧化物酶(myeloperoxidase,MPO)活性,放射免疫法检测心肌组织中肿瘤坏死因子α(tumor necrosis factor-α,TNF-α)、白细胞介素6(interleukin-6,IL-6)和IL-8含量,酶联免疫吸附测定法检测心肌组织中IL-4和IL-10含量。结果:与模型组相比,中剂量GBE50组心肌炎症反应减轻,心肌组织MPO活性明显降低(P<0.01);GBE50可明显减少心肌IL-6含量(P<0.05,P<0.01),升高IL-4含量(P<0.05,P<0.01)。与模型组比较,GBE50组心肌组织中TNF-α含量降低,IL-10含量升高,但差异无统计学意义。结论:GBE50可降低缺血再灌注后心肌IL-6含量,升高IL-4含量,提示其可能通过抑制炎性细胞因子、促进抗炎因子的表达,对心肌缺血再灌注后的炎症反应发挥调控作用。
引用
收藏
页码:373 / 378
页数:6
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