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脓毒血症对大鼠外周血树突状细胞免疫功能的影响 被引量:7

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摘要 目的探讨脓毒血症大鼠外周血树突状细胞(DC)数量和免疫功能的变化及意义。方法将SD大鼠随机分为正常对照组和致伤组,正常对照组只麻醉不致伤,并取外周血1次;致伤组以盲肠结扎穿孔制作脓毒症动物模型,分别于伤后4、12、24 h活杀动物取标本。分离两组外周血DC,通过流式细胞仪检测各组的DC数量,DC表面HLA-DR、CD80、CD86表达水平以及DC诱导的T细胞反应性增殖,并检测各组外周血清中白细胞介素(IL)-1β、IL-6水平。结果致伤组DC数量较正常对照组明显下降;DC表面HLA-DR、CD80、CD86表达水平也较正常对照组明显降低。致伤组DC诱导的T细胞增殖能力明显低于正常对照组;伤后血清IL-1β、IL-6显著升高,与正常对照组比较差异有统计学意义。结论脓毒血症早期大鼠外周血DC数量下降,功能降低,与伤后免疫系统功能低下密切相关。
出处 《广东医学》 CAS CSCD 北大核心 2013年第6期848-850,共3页 Guangdong Medical Journal
基金 广州市医药卫生科技一般引导项目(编号:2009-YB-020)
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