PMID: 30014641Jul 18, 2018Paper

The Study of Protective Effect of Paeoniflorin on Lung Injury in MRL/lpr Mice

Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition
Changhao XieYuanyuan Wang

Abstract

To investigate the protective effects of paeoniflorin on the lung injury in systemic lupus erythematosus with mouse model. Ten wild type mice and 40 MRL/lpr mice were used in this study. MRL/lpr mice were randomly assigned to MRL/lpr group,MRL/lpr + dexamethasone (1.5 mg/kg) group,MRL/lpr + paeoniflorin (20 mg/kg) group,and MRL/lpr + paeoniflorin (40 mg/kg). The levels of malondialdehyde (MDA) , superoxide dismutase (SOD) ,catalase (CAT) ,glutathione peroxidase (GSH-Px) in serum were detected. The serum levesl of inflammatory cytokines were measured. Lung pathological changes were determined by HE staining. The protein level of phospho-phosphatidylinositol-3 kinase (P-PI3K),phospho-serine-threonine kinase B(P-Akt) ,phospho-nuclear factor kappa B (P-NF-κB),phospho-inhibitor of nuclear factor kappa Bα (P-IκBα) were detected by Western blot. Paeoniflorin decreased serum level of MDA and increased the levels of SOD,CAT,GSH-PX,and decreased the levels of inflammatory cytokines. Paeoniflorin improved lung pathological changes and inhibited the protein levels of P-PI3K,P-Akt,P-NF-κBp65,and P-IκBα in the lung tissue of MRL/lpr mice. Paeoniflorin may be beneficial for the prevention of lung injury in systemic lupus erythematosus.

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