依达拉奉对小鼠肺型氧中毒的保护作用及其机制

Zhongguo ying yong sheng li xue za zhi = Zhongguo yingyong shenglixue zazhi = Chinese journal of applied physiology(2020)

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Abstract
目的:探讨依达拉奉(edaravone)对肺型氧中毒的保护作用及其机制.方法:30只C57BL/6雄性小鼠,随机分成3组(n=10):空气对照组、高压氧暴露组及依达拉奉预防组,干预组腹腔注射依达拉5 mg/(kg·d),连续3 d后,暴露于2.3 ATA,≥95%氧气中6 h,出舱后收集肺组织,检测肺湿干比.肺组织经苏木素-伊红染色后行病理分析.ELISA检测肺组织中细胞因子、抗氧化酶表达变化.Western检测凋亡基因.结果:依达拉奉注射后可明显减轻高压氧导致的肺损伤,降低肺湿干比,减少细胞因子IL-1β及凋亡蛋白cleaved-caspase3的表达,但对抗氧化酶无明显影响.结论:依达拉奉预防性应用可通过减轻炎症及凋亡对肺型氧中毒起到保护作用.
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Key words
pulmonary oxygen toxicity,edaravone
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