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KMID : 0043320170400101176
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Archives of Pharmacal Research
2017 Volume.40 No. 10 p.1176 ~ p.1185
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Astilbin alleviates sepsis-induced acute lung injury by inhibiting the expression of macrophage inhibitory factor in rats
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Zhang Hong Bo
Sun Li Chao
Zhi Li Da
Wen Qian Kuan
Qi Zhi Wei
Yan Sheng Tao
Li Wen
Zhang Guo Qiang
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Abstract
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Sepsis is a systemic inflammatory response syndrome caused by severe infections. Astilbin is a dihydroflavonol derivative found in many medicinal and food plants with multiple pharmacological functions. To investigate the effects of astilbin on sepsis-induced acute lung injury (ALI), cecal ligation and puncture was performed on rats to establish a sepsis-induced ALI model; these rats were then treated with astilbin at different concentrations. Lung injury scores, including lung wet/dry ratio, protein leakage, myeloperoxidase activity, and inflammatory cell infiltration were determined to evaluate the effects of astilbin on sepsis-induced ALI. We found that astilbin treatment significantly attenuates sepsis-induced lung injury and improves survival rate, lung injury scores, lung wet/dry ratio, protein leakage, myeloperoxidase activity, and inflammatory cell infiltration. Astilbin treatment also dramatically decreased the production of inflammatory cytokines and chemokines in bronchoalveolar lavage fluid. Further, astilbin treatment inhibited the expression and production of macrophage inhibitory factor (MIF), which inhibits the inflammatory response. Collectively, these data suggest that astilbin has a protective effect against sepsis-induced ALI by inhibiting MIF-mediated inflammatory responses. This study provides a molecular basis for astilbin as a new medical treatment for sepsis-induced ALI.
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KEYWORD
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Astilbin, CLP-induced sepsis, Macrophage inhibitory factor, Acute lung injury, Inflammatory responses
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