梅花鹿茸水提物对脂多糖诱导的小鼠肠道炎症的保护作用Protective Effect of Pilose Antler Water Extract on LPS-Induced Intestinal Inflammation in Mice
张爱武;陈新源;王光辉;王响;吴旻;徐海录;宋军;鞠贵春;
摘要(Abstract)：
为探讨梅花鹿鲜茸水提物对脂多糖(LPS)诱导的小鼠急性肠道炎症的保护作用，选取60只雄性成年昆明小鼠随机分为6组，即阳性对照组、阴性对照组、空白对照组、鹿茸水提物高、中、低剂量预保护处理组。阳性对照组灌胃10 mg/kg维生素C,阴性对照组与空白对照组均灌胃10 mL/kg生理盐水，鹿茸水提物高、中、低剂量预保护处理组分别灌胃200,100,50 mg/kg鹿茸水提物，连续灌胃14 d。第15天，空白对照组小鼠腹腔注射3.5 mL/kg生理盐水，其他各组小鼠腹腔注射3.5 mL/kg LPS水溶液，3 h后采集血液、解剖。采用ELISA试剂盒和荧光定量PCR法测定小鼠体内免疫因子和炎性因子的分泌量、炎性因子mRNA相对表达量及氧化应激水平。结果表明：鹿茸水提物预保护处理组的小鼠体质量显著高于空白对照组和阴性对照组(P<0.05);阴性对照组IL-1β和IFN-γ分泌量极显著高于空白对照组(P<0.01);与空白对照组相比，阴性对照组小鼠肝脏中NO的含量极显著升高，CAT和SOD活力极显著降低(P<0.01);与阴性对照组相比，鹿茸水提物预保护处理组NO含量极显著降低(P<0.01),SOD活力极显著升高(P<0.01);与空白对照组相比，阴性对照组LPS可引起小鼠空肠组织中IL-1β、NLRP3、NLRP1a的mRNA相对表达量的异常升高，差异极显著(P<0.01);与阴性对照组相比，鹿茸水提物预处理保护组可抑制3种炎性因子的mRNA相对表达量的异常升高，鹿茸水提物预保护处理组mRNA相对表达量与阳性对照组相近。说明鹿茸水提物可通过降低机体内炎性因子mRNA的相对表达量，减轻炎症级联反应，同时提高机体免疫水平，增强抗氧化能力，从而减轻LPS引起的肠道损伤。
关键词(KeyWords)： 鹿茸水提物;脂多糖;肠道炎症;炎症因子;氧化应激
基金项目(Foundation): 吉林省科技发展计划项目(20200404012YY);; 辽源市科技局产业发展项目(202100005)
作者(Authors): 张爱武;陈新源;王光辉;王响;吴旻;徐海录;宋军;鞠贵春;
DOI: 10.13326/j.jea.2022.1710
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