The aim of this paper is to observe the effect of the Feixian Recipe on pulmonary fibrosis in rats.A rat model with pulmonary fibrosis was established by intra-tracheal injection of bleomycin.On days 14,28 and 45,the ...The aim of this paper is to observe the effect of the Feixian Recipe on pulmonary fibrosis in rats.A rat model with pulmonary fibrosis was established by intra-tracheal injection of bleomycin.On days 14,28 and 45,the contents of laminin,collagen Ⅰ and collagen Ⅲ in lung tissue homogenate in the model group,the sham operated group,the Feixian group and the prednisone group were measured.The contents of laminin and collagen Ⅰ and Ⅲ were decreased significantly by the Feixian Recipe.Feixian Recipe has a significant therapeutic effect on bleo-mycin-induced pulmonary fibrosis in rats.展开更多
[目的]明确痰瘀同治方对心肌缺血区和动脉粥样硬化(atherosclerosis,AS)斑块内血管新生的双向调节作用,探讨自噬在其中的调控机制。[方法]选取载脂蛋白E基因敲除(Apolipoprotein E gene knockout,ApoE-/-)小鼠20只,随机分为模型对照组...[目的]明确痰瘀同治方对心肌缺血区和动脉粥样硬化(atherosclerosis,AS)斑块内血管新生的双向调节作用,探讨自噬在其中的调控机制。[方法]选取载脂蛋白E基因敲除(Apolipoprotein E gene knockout,ApoE-/-)小鼠20只,随机分为模型对照组和痰瘀同治(Tanyu Tongzhi,TYTZ)组,每组10只,饲喂高脂饲料;另取C57BL/6J小鼠10只为正常对照组,饲喂基础饲料。饲喂4周后,模型对照组和TYTZ组皮下注射异丙肾上腺素针100mg/kg,连续2d,正常对照组皮下注射等量0.9%氯化钠注射液。造模成功后4周,TYTZ组给予TYTZ方流浸膏2145mg/(kg·d),以蒸馏水稀释成0.4mL灌胃,模型对照组和正常对照组给予等量蒸馏水灌胃。给药6周后,用CD31免疫组化染色观察心肌缺血区和主动脉的新生血管密度。Western blot检测心肌组织和主动脉微管相关蛋白1轻链3(microtubule-associated protein 1 light chain 3,LC3)Ⅱ/Ⅰ蛋白表达。[结果]免疫组化染色结果显示,模型对照组心肌组织和主动脉组织CD31表达均显著高于正常对照组(P<0.05);TYTZ组心肌组织CD31表达明显高于模型对照组(P<0.05),而主动脉组织CD31表达则明显低于模型对照组(P<0.05)。Western blot结果显示,模型对照组心肌组织和主动脉组织LC3Ⅱ/Ⅰ蛋白表达水平均明显高于正常对照组(P<0.05);TYTZ组心肌组织LC3Ⅱ/Ⅰ蛋白表达水平显著高于模型对照组(P<0.05),而主动脉组织LC3Ⅱ/Ⅰ蛋白表达则明显低于模型对照组(P<0.05)。[结论]TYTZ方在抑制AS斑块内血管新生的同时能够促进心肌缺血区的血管新生,该方对自噬水平的双向调节作用可能是其中的调控机制。展开更多
基金supported by Beijing Municipal Science&Technology Commission(No.Y0204003041011).
文摘The aim of this paper is to observe the effect of the Feixian Recipe on pulmonary fibrosis in rats.A rat model with pulmonary fibrosis was established by intra-tracheal injection of bleomycin.On days 14,28 and 45,the contents of laminin,collagen Ⅰ and collagen Ⅲ in lung tissue homogenate in the model group,the sham operated group,the Feixian group and the prednisone group were measured.The contents of laminin and collagen Ⅰ and Ⅲ were decreased significantly by the Feixian Recipe.Feixian Recipe has a significant therapeutic effect on bleo-mycin-induced pulmonary fibrosis in rats.