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补体-中性粒细胞反馈的炎症应答调控在过敏性紫癜中的作用 被引量:4

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摘要 目的探讨补体-中性粒细胞反馈的炎症应答调控在过敏性紫癜(HSP)中的作用机制。方法选取24只清洁级日本大耳白兔为受试对象,分为正常组和模型组,每组12只。以干姜、荜茇、胡椒水煎剂混合液的药物灌胃,腹腔注射卵白蛋白-弗氏佐剂、耳缘静脉和背部皮内注射卵白蛋白生理盐水的方式构建过HSP模型。比较两组兔的饮食、饮水量、体温、血液常规和尿液常规变化及活性氧自由基(ROS)、炎性因子和补体成分的改变,同时以N-乙酰半胱氨酸(NAC)和过氧化氢(H2O2)干预ROS水平,并观察上述指标的变化。结果模型组兔在激发过敏后,体温明显升高,精神状态萎靡、运动量减少,饮水量和饮食量均较致敏前显著降低(P<0.05);而且,血液常规指标WBC、MCHC、NEU、NEU%水平明显升高,RBC、HGB、EOS和EOS%含量显著降低(P<0.05),而MCH和PLT则无明显变化(P>0.05);尿液出现拉丝、气味大的情况,其中66.67%出现尿蛋白阳性、58.33%出现尿红细胞、25%尿白细胞阳性;另外,模型组兔的ROS、炎性因子、TGF-β、补体水平也均明显升高;在ROS抑制剂NAC处理之后,上述指标水平明显降低(P<0.05),而在应用ROS激动剂H2O2处理之后,这些指标却明显升高(P<0.05)。结论补体-中性粒细胞反馈的炎症应答调控在HSP的形成中具有重要作用,抑制ROS水平能抑制HSP的发生和进展。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2015年第5期1361-1364,共4页 Chinese Journal of Gerontology
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