严重创伤后氧对T细胞功能的影响

被引:5
作者
周峰
汪明星
霍维皊
机构
[1] 徐州医学院第二附属医院骨科
关键词
氧; 创伤; 细胞免疫; CTLA-4;
D O I
10.19460/j.cnki.0253-3685.2007.07.016
中图分类号
R641 [创伤];
学科分类号
1002 ; 100210 ;
摘要
目的探讨严重创伤后病人T淋巴细胞转化活性及CD4+T、CD8+T细胞活性变化,CTLA-4分子水平在严重创伤转归、干预治疗等方面的意义。方法将133例病人分为创伤对照组46例、高流量吸氧组44例、高压氧组43例,创伤对照组患者入院后给予常规治疗;高流量吸氧组患者辅以5L/min,120min/d吸氧治疗;高压氧组患者辅以高压氧治疗(压力2ATA,60min/d)。于3、7d时间点,对各组分别进行T淋巴细胞转化活性、T淋巴细胞亚群及CTLA-4分子水平的测定。结果与创伤对照组比较,高流量吸氧组和高压氧组患者的T淋巴细胞转化活性增高,CD4+T细胞数明显增多(P<0.01),CD4+/CD8+细胞比值明显增加(P<0.01),T细胞表面和总CTLA-4分子表达明显降低(P<0.01);与高流量吸氧组相比,高压氧组患者的T淋巴细胞转化活性增高,CD4+T细胞数明显增多(P<0.05),CD4+/CD8+细胞比值明显增加(P<0.01),T细胞表面和总CTLA-4分子表达降低(P<0.05)。结论氧能够明显提高T淋巴细胞转化活性,使CD4+T细胞增多,CD4+/CD8+细胞比值明显增加,并且明显降低T细胞表面和总CTLA-4分子的表达。
引用
收藏
页码:688 / 690
页数:3
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