Document Detail

Daily rhythmicity of glycemia in four species of domestic animals under various feeding regimes.
MedLine Citation:
PMID:  18627639     Owner:  NLM     Status:  MEDLINE    
Daily rhythmicity of physiological processes has been described for numerous variables in numerous species. A major source of this rhythmicity is a circadian pacemaker located in the mammalian hypothalamus, but very little is known about how the pacemaker generates the multiplicity of bodily rhythms. Research on rats has shown that the rhythm of blood glucose concentration is not a mere consequence of the rhythm of food ingestion, but is rather generated directly by the pacemaker. In this study, we investigated the rhythm of blood glucose concentration in four different species of domestic animals under four different feeding regimes. Our results suggest that, as in rats, the rhythm of blood glucose concentration is not a mere consequence of the rhythm of food ingestion in sheep and cattle. In dogs and horses, however, the rhythmicity of blood glucose concentration seems to be contingent on the presence of a feeding regime.
Giuseppe Piccione; Francesco Fazio; Giovanni Caola; Roberto Refinetti
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2008-07-17
Journal Detail:
Title:  The journal of physiological sciences : JPS     Volume:  58     ISSN:  1880-6546     ISO Abbreviation:  J Physiol Sci     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-09-17     Completed Date:  2009-01-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101262417     Medline TA:  J Physiol Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  271-5     Citation Subset:  IM    
Laboratorio di Cronofisiologia Veterinaria, Dipartimento di Scienze Sperimentali e Biotecnologie Applicate, Facoltà di Medicina Veterinaria, Università degli Studi di Messina, 98168 Messina, Italy.
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MeSH Terms
Biological Clocks / physiology
Blood Glucose / metabolism*
Circadian Rhythm*
Feeding Behavior*
Food Deprivation
Hypothalamus / physiology
Sheep, Domestic
Reg. No./Substance:
0/Blood Glucose

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