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1978•The Journal of Clinical Endocrinology & MetabolismRequires access

Overnight Plasma Profiles of Melatonin and Certain Adenohypophyseal Hormones in Men*

George M. Vaughan, John P. Allen, William Tullis, Theresa M. Siler-Khodr, Augustin de la Peña, JEFFEREY W. SACKMAN

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Abstract

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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What this paper is about

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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OpenAlex reports 76 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

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.

Key concepts: Melatonin, Nocturnal, Internal medicine, Endocrinology, Hormone, Circadian rhythm, Sleep (system call), Endogeny

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