脑梗死急性期患者辅助性T细胞亚群及其细胞因子IFN-γ、IL-4的变化及意义

Beijing Medical Journal(2016)

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Abstract
目的 探讨脑梗死急性期患者辅助性T淋巴细胞亚群Th1、Th2细胞及其主要细胞因子IFN-γ、IL-4的表达情况.方法 对伴有(SIRS组)或不伴有(N-SIRS组)全身炎症反应综合征(SIRS)的脑梗死急性期患者采静脉血行Th1、Th2细胞计数和细胞因子IFN-γ、IL-4测定;在发病后的第7天采血复查.选择同期健康人群30例作为对照组(MC组).结果 连续收集神经内科住院的急性脑梗死患者143例,SIRS组56例,N-SIRS组87例.脑梗死24 h内SIRS组、N-SIRS组与MC组比较,Th1百分比上升、IFN-γ浓度增高,差异均有统计学(P=0.039,0.000),但SIRS组、N-SIRS组间差异无统计学意义.脑梗死7d后,SIRS组(n=39)与N-SIRS组(n=64)比较,Th1细胞百分比、IFN-γ浓度呈现下降趋势,差异有统计学意义(P=0.044,0.017);Th2细胞和IL-4浓度两组间差异无统计学意义.脑梗死7d后,多脏器功能障碍综合征组(MODS组,n=20)与N-MODS组(n=83)Th1百分比和IFN-γ浓度、Th2细胞和IL-4浓度均呈显著下降趋势,差异有统计学意义(P=0.011,0.001,0.025,0.009).结论 Th1细胞分化下降及IFN-γ表达减少是急性脑梗死伴发SIRS患者进展成为MODS的一项预测指标.
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