补锌对新兵血浆ACTH水平及耐寒力的影响

发布时间：2018-08-22 15:57

【摘要】：目的 :研究锌对寒区新兵促肾上腺皮质激素 (ACTH)分泌及耐寒的作用。方法 :选西北某部集训期新兵 5 4人 ,分为普食对照组 (2 5人 )和普食加锌组 (2 9人 ,每人补锌 30mg·d- 1) ,2 5d补锌前后 ,分别测定冷暴露 4h后血浆促上腺皮质激素 (ACTH)水平、血浆锌浓度以及冷暴露4h前后直肠温度、胸部皮温等。结果 :膳食调查结果显示 ,两组战士热能及各种营养素的摄取量基本满足要求 ,锌摄入量为 12 .5mg ,补锌后战士冷暴露后ACTH水平为 (5 36± 5 0 )ng·L- 1低于补锌前的 (710± 33)ng·L- 1和对照组相应时间的 (6 90± 4 5 )ng·L- 1,(P 0 .0 5 )。血清锌水平没有明显差异。补锌后、冷暴露后 ,直肠温度和胸部皮温下降的幅度分别为 (0 .6 2± 0 .0 4 )℃和 (0 .5 4±0 .0 1)℃ ,低于实验前的 (0 .80± 0 .0 8)℃和 (1.0 5± 0 .0 9)℃ ,(P 0 .0 5 )。结论 :适量补锌可提高人体的耐寒能力
[Abstract]:Objective: to study the effect of zinc on the secretion of adrenocorticotropic hormone (ACTH) and cold tolerance in recruits in cold area. Methods: a total of 54 recruits were divided into two groups: the control group (25 cases) and the zinc plus zinc group (29 cases), each of whom was given zinc 30mg d-1 for 25 days before and after zinc supplementation, and the control group was divided into two groups: the control group (n = 25) and the control group (n = 29). The levels of plasma corticotropin (ACTH), plasma zinc concentration, rectal temperature and chest skin temperature were measured 4 hours after cold exposure. Results: the results of dietary survey showed that the intake of heat energy and nutrients in the two groups basically met the requirements, and the intake of zinc was 12.5 mg. The level of ACTH after cold exposure was (536 卤50) ng / L ~ (-1) after zinc supplementation and (710 卤33) ng / L ~ (-1) before zinc supplementation and (6.90 卤4.5) ng / L ~ (-1) in control group (P < 0.05). There was no significant difference in serum zinc levels. After zinc supplementation, the decrease of rectal temperature and chest skin temperature were (0.62 卤0.04) 鈩，

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