Document Detail


Dietary glutamine suppresses endogenous glutamine turnover in the rat.
MedLine Citation:
PMID:  10647078     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Plasma glutamine turnover was determined using 1-14C-labeled glutamine in rats that consumed crystalline amino acid diets containing the equivalent of 16% protein with 25% of the amino acids as glutamine or a control diet containing no glutamine (or glutamate) for 10 days. Glutamine turnover in glutamine-fed animals was 66% of the rate in the control group. Glutamine feeding caused 20% higher levels of arterial plasma glutamine. Arterial-portal differences across the portal-drained viscera showed net glutamine uptake in control animals but no net uptake or release in the glutamine-fed group. Skeletal muscle glutamine synthetase activity was similar in both groups. The results indicate that long-term consumption of relatively large amounts of dietary glutamine decreases the turnover of plasma glutamine and thus reduces the need for endogenous glutamine synthesis.
Authors:
M Watford; B Darcy-Vrillon; P H Duée
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Metabolism: clinical and experimental     Volume:  49     ISSN:  0026-0495     ISO Abbreviation:  Metab. Clin. Exp.     Publication Date:  2000 Jan 
Date Detail:
Created Date:  2000-02-02     Completed Date:  2000-02-02     Revised Date:  2010-01-29    
Medline Journal Info:
Nlm Unique ID:  0375267     Medline TA:  Metabolism     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  141-5     Citation Subset:  IM    
Affiliation:
Department of Nutritional Sciences, Cook College, Rutgers University, New Brunswick, NJ 08901-8525, USA.
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / blood
Animals
Diet
Down-Regulation
Glutamine / administration & dosage,  metabolism,  pharmacology*
Male
Muscle, Skeletal / metabolism
Proteins / metabolism
Rats
Rats, Sprague-Dawley
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Proteins; 56-85-9/Glutamine

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


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