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Journal of Clinical Endocrinology & Metabolism, Vol 47, 566-571, Copyright © 1978 by Endocrine Society

ARTICLES

Overnight plasma profiles of melatonin and certain adenohypophyseal hormones in men

GM Vaughan, JP Allen, W Tullis, TM Siler-Khodr, A de la Pena and JW Sackman

Melatonin levels exhibited a day-night rhythm with highest levels at night. Nocturnal plasma melatonin concentrations were unrelated to sleep stages, whereas secretion of GH was temporally related to slow wave sleep. Levels of corticotropin rose in the later sleep cycles. We found no relationship between endogenous nocturnal melatonin and adenohypophyseal hormone levels. The results indicate that in young men nocturnal levels of melatonin are controlled separately from those of LH, PRL, corticotropin, and GH.




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Copyright © 1978 by The Endocrine Society