全身炎性反应综合征时中性粒细胞凋亡的异常

Journal of Dalian Medical University(2006)

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Abstract
[目的]研究中性粒细胞即多形核白细胞(polymorphonuclear neutrophil,PMN)凋亡的异常在全身炎性反应综合征(systemic inflammatory response syndrome,SIRS)中的意义。[方法]SIRS患者8例(均为急性胰腺炎患者)为SIRS组,正常人6例为对照组。采用流式细胞仪和TUNEL方法定量检测外周血PMN的凋亡情况,采用ELISA法检测血清IL-6、IL-8的水平。[结果]流式细胞仪检测:SIRS组外周血PMN的细胞凋亡率为(42±8)%,低于对照组的(63±9)%,P<0.05;TUNEL法检测:SIRS组外周血PMN的凋亡指数(apoptosis index,AI)为25±7,低于对照组的37±10,P<0.005。SIRS组外周血血清IL-6水平为(8.2±2.2)pg/mL,高于对照组的(2.1±1.3)pg/mL,P<0.001;SIRS组外周血血清IL-8的水平为(38±12)pg/mL,高于对照组的(12±4)pg/mL,P<0.001。[结论]SIRS患者存在PMN的凋亡延迟,其在SIRS的发生、发展中有着重要的意义。
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Key words
polymorphonuclear neutrophil,apoptosis,systemic inflammatory response syndrome
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