Document Detail


Multiple circadian oscillators regulate the timing of behavioral and endocrine rhythms in female golden hamsters.
MedLine Citation:
PMID:  4001926     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A single daily "surge" in pituitary luteinizing hormone release was observed in ovariectomized-estrogen-treated hamsters expressing an intact circadian rhythm of locomotor activity. In contrast, two luteinizing hormone surges occurred within a single 24-hour period in hamsters whose activity rhythm had dissociated or "split" into two distinct components. These observations indicate that both behavioral and endocrine circadian rhythms are regulated by the same multioscillator system, which seems to be composed of at least two distinct circadian oscillators.
Authors:
J M Swann; F W Turek
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  228     ISSN:  0036-8075     ISO Abbreviation:  Science     Publication Date:  1985 May 
Date Detail:
Created Date:  1985-06-24     Completed Date:  1985-06-24     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  898-900     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Castration
Circadian Rhythm*
Cricetinae
Estradiol / pharmacology
Female
Luteinizing Hormone / blood,  secretion*
Mesocricetus
Motor Activity / physiology*
Grant Support
ID/Acronym/Agency:
HD-07068/HD/NICHD NIH HHS; HD-09885/HD/NICHD NIH HHS; K04 HD-00249/HD/NICHD NIH HHS
Chemical
Reg. No./Substance:
50-28-2/Estradiol; 9002-67-9/Luteinizing Hormone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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