人参皂苷Rh1对哮喘模型小鼠炎症因子表达的抑制作用

被引:40
作者
张春晶 [1 ]
李淑艳 [1 ]
赵容杰 [2 ]
赵正林 [1 ]
机构
[1] 齐齐哈尔医学院生物化学教研室
[2] 齐齐哈尔医学院精神卫生学院
关键词
支气管哮喘; 人参皂苷Rh1; 炎症因子; 肺组织;
D O I
暂无
中图分类号
R285.5 [中药实验药理]; R-332 [医用实验动物学];
学科分类号
100402 [劳动卫生与环境卫生学]; 100806 [中药药理学];
摘要
目的:观察和探讨人参皂苷Rh1对哮喘模型小鼠的血清和支气管肺泡冲洗液(bronchoalveolar lavage fluid,BALF)中炎症因子的表达和肺组织形态学变化的影响。方法:雄性BALB/c小鼠40只,分为正常对照组、哮喘模型组、人参皂苷Rh1小剂量(40 mg·kg-1·d-1)治疗组和人参皂苷Rh1大剂量(80 mg·kg-1·d-1)治疗组,并利用卵清蛋白致敏和雾化吸入激发方法制作哮喘模型;人参皂苷Rh1小剂量治疗组和大剂量治疗组分别在每次激发攻击前30 min灌胃,每天一次,共2周。在末次激发24 h后收集BALF,计数嗜酸性粒细胞(eosinophil,EOS)数目;利用ELISA测定BALF中白细胞介素(IL)-4、IL-5和干扰素γ(IFN-γ)的水平;收集血液并测定血清中Ig G和Ig E的水平;用Western blot检测肺组织中转化生长因子(TGF)-β1蛋白表达的变化;用HE染色观察肺组织的病理学变化。结果:人参皂苷Rh1可抑制小鼠哮喘模型BLAF中EOS数目(P<0.01);降低BLAF中IL-4、IL-5和IFN-γ的表达(P<0.01);减少血清中Ig E的含量(P<0.01);减少肺组织中TGF-β1蛋白表达(P<0.01),并改善哮喘小鼠肺组织病理学变化。结论:人参皂苷Rh1对哮喘小鼠具有抑制炎症因子表达、调节免疫反应和改善肺组织病理变化的作用。
引用
收藏
页码:163 / 167
页数:5
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