高温作训环境对战士外周血IL-17及中性粒细胞和淋巴细胞变化的影响

目的：观测高温环境对执行训练任务战士外周血IL-17浓度及中性粒细胞和淋巴细胞含量的影响。方法选取健康训练战士160名，随机分为两组，每组80人，分别于（32±1）℃（试验组）和（22±1）℃（对照组）环境中连续训练2 h后，抽取静脉血检测IL-17浓度及外周血中性粒细胞和淋巴细胞含量。结果在高温环境训练40、50、60 min战士的体温分别为（38．74±0．26）、（39．23±0．24）、（39．51±0．34）℃，较常温环境训练的战士明显增高，差异有统计学意义（P＜0．05）。在高温环境训练40、50、60 min战士的自感劳累等级评分分别为17．62±0．66、18．03±0．56、18．47±0．84，较常温环境训练的战士明显增高，差异有统计学意义（P＜0．05）。高温训练2 h后战士外周血中IL-17浓度为（7．12±4．03）pg／ml，外周血中性粒细胞为（6．43±1．27）×109／L，淋巴细胞为（9．84±1．36）×109／L，与对照组相比均有明显增高，差异有统计学意义（P＜0．05）。结论高温环境能明显增高训练战士体温、自感劳累等级评分、外周血中IL-17的浓度以及中性粒细胞和淋巴细胞数。

Effect of training under high temperature environment on changes in IL-17, neutro-phils and lymphocytes in peripheral blood of soldiers

Objective To observe the effect of a high temperature environment on IL-17 concentration , neutrophil and lymphocyte in peripheral blood of soldiers on a training task .Methods Totally 160 health training soldiers were randomly and equally divided into two groups .The test group was trained and exposed to an environment of ( 32 ±1 )℃ vs control group at ( 22 ±1 )℃ for 2 hours before the IL-17 levels in venous blood were measured and peripheral neutrophils and lymphocytes were determined.Results The body temperatures were (38.74 ±0.26),(39.23 ±0.24),and (39.51 ± 0.34)℃after training for 40 min,50 min,and 60 min under a high temperature environment , respectively, and there was a significant increase of body temperature compared to the soldiers trained under normal conditions (P <0.05).Their perceived exertion rating was 17.62 ±0.66, 18.03 ±0.56, and 18.47 ±0.84, respectively, much unlike the control group (P<0.05).After 2 hours of training under high temperature , the concentration of IL-17 was (7.12 ±4.03) pg/ml, while the number of neutrophils and lymphocytes was (6.43 ±1.27) ×109/L and (9.84 ±1.36) ×109/L, respectively in peripheral blood, significantly higher than in the control group (P <0.05).Conclusion The body temperature and rating of perceived exertion of the training soldiers are significantly elevated under a high temperature environment, and the concentration of IL-17, and the neutrophils and lymphocytes counts in peripheral blood are increased .