Adjustment of the human melatonin and cortisol rhythms to shortening of the natural summer photoperiod

被引：38

作者：

Vondrasová-Jelínková, D ^{[1
]}

Hájek, I ^{[1
]}

Illnerová, H ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Physiol, CR-14220 Prague 4, Czech Republic

来源：

BRAIN RESEARCH | 1999年 / 816卷 / 01期

关键词：

circadian rhythm; entrainment; photoperiod; melatonin; cortisol; human;

D O I：

10.1016/S0006-8993(98)01189-5

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Fifteen human subjects were exposed to natural outdoor summer light from 0415 h until 2000 h for 4 days and then from 0800 h until 1600 h for another 4 days. Following shortening of the natural summer photoperiod, times of the morning salivary melatonin decline and cortisol rise did not change whereas the time of the evening melatonin rise phase advanced by about 1.5 h within 1 day and further did not change significantly. Consequently, the melatonin signal duration extended markedly within 1 day. The data show that the compressed melatonin rhythm waveform in humans experiencing a long natural summer photoperiod from sunrise until sunset may change rapidly following a shortening of the photoperiod. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：249 / 253

页数：5

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