Effects of Sanshiliudang Kange Powder on airway inflammation in bronchial asthma remission of mice
AIM To investigate the effects of Sanshiliudang Kange Powder on airway inflammation in bronchial asthma remission of mice.METHODS Seventy-eight BALB/c mice were randomly divided into the blank group,the model group,the dexamethasone group(0.5 mg/kg)and the low-dose,medium-dose and high-dose Sanshiliudang Kange Powder groups(9.3,18.6 and 37.2 g/kg).Except for those of the blank group,the mice of the other groups were sensitized by intraperitoneal injection of ovalbumin(OVA)and aluminum hydroxide mixture,and induced into models of asthma remission followed by 28 days consecutive corresponding drug administration which was initiated on the 77th day of modeling.The mice had their pulmonary pathological changes observed by HE staining;their levels of IL-1β,IL-6,TNF-α,HMGB1 and NF-κB in serum and alveolar fluid determined by ELISA;and their pulmonary protein expressions of TLR4,MyD88,NF-κB p65 and p-NF-κB p65 determined by Western blot.RESULTS Compared with the model group,each group intervened with a drug displayed significantly reduced pulmonary pathological injury and inflammation;decreased levels of IL-1β,IL-6,TNF-α,HMGB1,NF-κB in serum and BALF(P＜0.01);and decreased pulmonary protein expressions of TLR4,MyD88,p-NF-κB p65/NF-κB p65(P＜0.01).Generally,the medium-dose Sanshiliudang Kange Powder group demonstrated a very good efficacy,which was only inferior to that of the dexamethasone group.CONCLUSION Sanshiliudang Kange Powder has a good inhibitory effect on airway inflammation in bronchial asthma remission of mice,and its mechanism may be related to the inhibited activation of HMGB1/TLR4/MyD88 signal pathway.
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