The effect of endoplasmic reticulum stress and oxidative stress in bleomycin-induced pulmonary fibrosis and protective effect of Danshaohuaxian capsule in this model
XIE Ru-jia, HAN Bing, ZHANG Cheng-jun, et al. The effect of endoplasmic reticulum stress and oxidative stress in bleomycin-induced pulmonary fibrosis and protective effect of Danshaohuaxian capsule in this model[J]. Journal of Chongqing Medical University, 2011,36(7):805-808.
XIE Ru-jia, HAN Bing, ZHANG Cheng-jun, et al. The effect of endoplasmic reticulum stress and oxidative stress in bleomycin-induced pulmonary fibrosis and protective effect of Danshaohuaxian capsule in this model[J]. Journal of Chongqing Medical University, 2011,36(7):805-808. DOI: 10.13406/j.cnki.cyxb.2011.07.007.
Objective:To investigate the effect of endoplasmic reticulum stress and oxidative stress in bleomycin-induced pulmonary fibrosis and protective effect of Danshaohuaxian(DSHX) capsule in this model.Methods:Thirty SD rats were randomly divided into normal control group
pulmonary fibrosis model group and DSHX capsule therapeutic group.Pulmonary fibrosis model was induced by intratracheal instillation of single dose of bleomycin 5 mg/kg.DSHX capsule 0.8 g/kg was administered daily by oral in the therapeutic groups on the second day after bleomycin.All rats were killed on the 28th day.The levels of MDA and SOD
and the expression of GRP78 in pulmonary tissue were detected.Results:Compared with the control group
the levels of MDA and GRP78 in model group were increased
while the activity of SOD was decreased.After the treatment of DSHX capsule
the levels of MDA and GRP78 were decreased
while the activity of SOD was elevated.Conclusion:DSHC capsule can reduce pulmonary alveolus inflammation and pulmonary fibrosis induced by bleomycin
the mechanisms of which may be the elevation of the activity of SOD in lung tissue to alleviate oxidative stress and endoplasmic reticulum stress.