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Apoptosis and mitochondrial membrane potential in circulating neutrophils in children underwent surgery
Author(s): CHEN Feng, WANG Jian, ZHANG Xuelan, WANG Xingdong
Pages: 10-
12
Year: 2007
Issue:
1
Journal: JIANGSU MEDICAL JOURNAL
Keyword: 手术应激; 中性粒细胞; 凋亡; 线粒体膜电位;
Abstract: 目的 探讨手术应激后儿童外周血中性粒细胞凋亡及线粒体膜电位变化.方法 择期手术患儿16例,分别于术前24h,术后24、72h采集外周血3.5~5ml.用梯度离心法分离出中性粒细胞培养15h.加入7-AAD、DioC6(3)染色.通过流式细胞仪检测细胞凋亡和线粒体膜电位.结果 术后24h中性粒细胞凋亡率明显减少[术前(13.27±7.11)%,术后(7.55±4.70)%,P<0.05],术后72h仍处于减少状态[(5.47±2.67)%,P<0.05].同时荧光指数也下降(术前46.08±29.19,术后30.72±15.84,P<0.05).术后72h仍处于减少状态(29.63±22.39,P<0.05).结论 手术创伤使外周血中性粒细胞凋亡减少,同时荧光指数降低,表明有较少的细胞线粒体膜电位降低.中性粒细胞凋亡的延迟是术后炎症反应综合征的原因之一.
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