| Abstract: | Objective: To investigate the effect of Fufei Gushen Decoction on airway inflammation and glucocorticoid receptor in rats with chronic obstructive pulmonary disease. Methods: Fifty Wistar male rats were randomly divided into 5 groups: blank control group, COPD model group, Fufei Gushen Yin high, medium and low dose groups, 10 rats in each group, except the blank control group, the remaining 4 groups were Smoked combined with lipopolysaccharide (LPS), cold air stimulation to create CODP rat model. After successful modeling, the blank control group and COPD model group were fed with distilled water 3ml/only, Fufei Gushen Yin high, medium and low dose groups were given 1.02, 0.51, 0.26g Chinese medicine granules/100g/day, respectively. 2 times a day for 28 consecutive days. Samples were collected, hematoxylin-eosin (HE) staining was used to observe the pathological changes of lung tissue, and enzyme-linked immunosorbent assay (ELISA) was used to detect the tumor necrosis factor alpha (TNF-α) in the serum and right alveolar lavage fluid (BALF) of rats in each group. ), the content of transforming growth factor β1 (TGF-β1), interleukin-17 (IL-17A) and matrix metalloproteinase (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1) in the left lung tissue The expression level of real-time fluorescence quantitative polymerase chain reaction (Real-time PCR) rat left lung tissue GRmRNA, immunohistochemistry (IHC) to determine the expression level of left lung tissue glucocorticoid receptor (GR). Results: The content of TNF-α, TGF-β1 and IL-17A in the serum of COPD rats in Fufei Gushen Yin high, medium and low dose groups and BALF were significantly reduced compared with the COPD model group (P<0.05); The expressions of TIMP-1 and MMP-9 in tissues were lower than those in COPD model group (P<0.05); the expressions of GRmRNA and GR in lung tissues were higher than those in COPD model group (P<0.05), and were higher in Fufei Gushen Yin Among the middle- and low-dose groups, the middle-dose group has the most significant effect. Conclusion: Fufei Gushen Decoction can inhibit the release of inflammatory factors in lung tissue of COPD rats, improve airway inflammation and remodeling, and increase hormone sensitivity. |
