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姜黄素对肠缺血再灌注损伤大鼠肿瘤坏死因子-α表达的影响 被引量:2

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摘要 目的评价姜黄素预处理对肠缺血再灌注模型大鼠肠组织肿瘤坏死因子-α(TNF-α)表达的影响。方法 24只SD雌性大鼠随机分为3组(n=8):假手术组(S组)、缺血再灌注组(I/R组)、姜黄素预处理组(Cur组)。I/R组和Cur组采用夹闭肠系膜上动脉(SMA)75 min后开放SMA恢复血流灌注4 h建立大鼠肠缺血再灌注损伤模型,S组大鼠只分离但不夹闭SMA,Cur组大鼠于造模前连续5 d胃饲姜黄素200 mg/kg,S组和I/R组大鼠于造模前连续5 d胃饲等容量生理盐水。各组大鼠于再灌注后4 h取肠组织标本,进行肠组织病理学检查以及肠组织TNF-α表达水平的检测。结果与S组比较,I/R组和Cur组大鼠肠组织病理损伤加重,chiu评分和肠组织TNF-α表达水平升高(P<0.05);与I/R组比较,Cur组大鼠肠组织病理损伤减轻,chiu评分和肠组织TNF-α表达水平下降(P<0.05)。结论姜黄素预处理可减轻大鼠小肠缺血再灌注损伤,其机制可能与抑制肠组织TNF-α表达有关。
出处 《广东医学》 CAS CSCD 北大核心 2014年第14期2157-2158,共2页 Guangdong Medical Journal
基金 广东省医学科研基金资助项目(编号:A2013673)
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