Protective effects of Rabdosia japonica var. glaucocalyx extract on lipopolysaccharide-induced acute lung injury in mice

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摘要 ThepresentstudywasdesignedtoevaluatetheprotectiveeffectsofethanolextractsofRabdosiajaponicavar.glaucocalyx(Maxim.)Hara(RJ)onlipopolysaccharide(LPS)-inducedacutelunginjury(ALI)inmiceandthepossibleunderlyingmechanismsofaction.ThemicewereorallyadministratedwithRJextract(16,32or64mg?kg–1)dailyforconsecutive7daysbeforeLPSchallenge.Theungspecimensandthebronchoalveolarlavagefluid(BALF)werecollectedforhistopathologicalexaminationsandbiochemicalanalyses.PretreatmentwithRJsignificantlyenhancedsuperoxidedismutase(SOD)activityandreducedthewet-to-dryweight(W/D)ratio,thelevelsofnitricoxide(NO)andproteinleakage,andmyeloperoxidase(MPO)activityinmicewithALI,inadose-dependentmanner.RJreducedcomplementdepositionandsignificantlyattenuatedLPS-inducedALIbyreducingproductionsofinflammatorymediators,suchastumornecrosisfactor-α(TNF-α),interleukin-6(IL-6),andinterleukin-1β(IL-1β).TheresultsdemonstratedthatRJmayattenuateLPS-inducedALIviareducingtheproductionofpro-inflammatorymediators,andreducingcomplementdepositionandradicals.
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出版日期 2015年10月20日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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