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Effects of ethyl pyruvate on cell-mediated immune function in rats with delayed resuscitation after burn injury
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- Author:
- No author available
- Journal Title:
- CHINESE CRITICAL CARE MEDICINE
- Issue:
- 1
- DOI:
- 10.3760/j.issn:1003-0603.2005.01.006
- Key Word:
- 烧伤;白细胞介素-2;白细胞介素-2受体;T淋巴细胞;丙酮酸乙酯
Abstract： 目的观察丙酮酸乙酯(EP)对烫伤延迟复苏大鼠细胞免疫功能的影响,并探讨其作用机制.方法采用大鼠30%总体表面积Ⅲ度烫伤模型,103只大鼠随机分为正常对照组(n=7)、假烫伤组(n=32)、烫伤组(n=32,伤后6 h腹腔内注入40 ml/kg生理盐水)和EP(3.23 mg/ml)干预组(n=32,伤后6 h腹腔内注入40 ml/kg EP液),分别于伤后1、3、5和7 d活杀,检测脾淋巴细胞增殖能力、白细胞介素-2(IL-2)生成及白细胞介素-2受体(IL-2R)表达.结果烫伤延迟复苏后1～7 d,脾淋巴细胞丝裂原刺激的增殖反应明显受抑制(P均<0.05).烫伤后1～5 d IL-2生成明显减少(P均<0.05),且烫伤后1和3 d IL-2R的表达显著降低(P均<0.05).EP干预能够明显恢复烫伤后1～7 d脾淋巴细胞的增殖能力(P均<0.05),伤后1、3和5 d,IL-2的生成显著增加,但对IL-2R的表达无影响(P均>0.05).结论 EP能显著增加脾淋巴细胞的增殖能力和IL-2的产生,从而有效改善烫伤延迟复苏后细胞免疫功能障碍.
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