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锌对热应激大鼠β-内啡肽的影响

Effect of zinc on β-endorphin in rats received heat stress
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摘要 目的:探讨锌对热应激大鼠β-内啡肽的影响。方法:分别以高、中、低锌饲料(锌含量分别为92.20、45.61、21.70mg/kg饲料)喂养三组大鼠,并于热暴露5、30和60min时断头处死进行β-内啡肽测定。结果:三组大鼠热暴露后血液中β-内啡肽含量变化的趋势一致:受热5min后即上升,至30min时继续升高,至60min时有所下降,但含量仍然比5min时高。无论哪一个时间点上,高锌、中锌组含量均比低锌组高,统计学上有显著性差异。结论:足够的锌摄入能提高血浆β-内啡肽水平,锌摄入不足导致血浆β-内啡肽含量减少,而在高温反应中,β-内啡肽能减轻热和疼痛刺激所致的生理反应,由此可认为,锌通过提高血浆β-内啡肽水平而发挥体温调节作用,增强机体热耐力。 Objective:To study the effects of Zinc on β-endorphin in rats received heat stress.Methods:Detecting the β-endorphin in rats received heat stress for 5 min,30 min and 60 min.Results:In high and middle zinc groups,the β-endorphin was higher than in low zinc group whenever.Conclusion:Zinc can incerase the serous level of β-endorphin in rats happened heat stress,which can adjust the temperature of rat.So,Zinc can enhance the resistibility to heat stress.
作者 徐荷 郭俊生
出处 《微量元素与健康研究》 CAS 1998年第4期11-12,共2页 Studies of Trace Elements and Health
关键词 Β内啡肽 热应激 大鼠 β-endorphin Heat stress Zinc
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  • 1祝元祥,管小滨,崔瑞耀,朱鹤年,张崇理.β内啡肽的抗血清制备及其放射免疫测定[J]第二军医大学学报,1986(05).

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