Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1989-2-21
pubmed:abstractText
Using a recently developed model for investigating the neuroendocrine role of melatonin in man, we studied melatonin's effect on the nocturnal secretion of thyrotropin and cortisol in 17 normal male volunteers. The model consists of sleep in the dark and all-night sleep deprivation in conditions of: bright light with and without a melatonin infusion, and dim light. We have improved our infusion paradigm so that levels of melatonin during infusion are now indistinguishable from those occurring during sleep in the dark or dim light sleep deprivation. Sleep deprivation per se raised TSH levels compared to normal sleep. However, the three conditions of sleep deprivation could not be distinguished from each other, which suggests that the suppression of TSH by sleep (or the stimulation of TSH by sleep deprivation) is not mediated by melatonin. Cortisol secretion was unaffected by sleep deprivation regardless of melatonin's presence or absence. However, a difference in the pattern of secretion of cortisol in the sleep condition in the early morning (compared to the sleep deprivation conditions) was noted. These data do not implicate melatonin in the acute regulation of TSH or cortisol in normal man. These data also provide a method of melatonin infusion that replicates the pattern and levels seen in sleep.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0028-3835
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
387-93
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Lack of an acute modulatory effect of melatonin on human nocturnal thyrotropin and cortisol secretion.
pubmed:affiliation
Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.