Document Detail


Influence of exercise on plasma and muscle free amino acids in trained rainbow trout.
MedLine Citation:
PMID:  10731080     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Variations in the concentration of free amino acids in the muscle and plasma of trout submitted to 5 minutes of intense exercise have been studied. The responses of untrained fish and those trained performing the same type of exercise twice daily for 28 days are compared. Total amino acid concentrations in muscle tend to diminish after intense exercise. Significant decreases are observed in muscle content of alanine, beta-alanine, isoleucine and ornithine. Plasma amino acids tend to increase after exercise with significant differences in glutamate, GABA, methionine and NH4+. The small variations due to intense exercise suggest that the amino acids are mobilised. Training led to a decrease in total amino acid concentration in plasma but not in muscle, where levels of aspartate and ornithine increased. This suggests a metabolic adaptation to exercise, with amino acid level retention in the muscle.
Authors:
J F Marín; P Mendiola; M D Hernández; J De Costa; S Zamora
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of physiology and biochemistry     Volume:  55     ISSN:  1138-7548     ISO Abbreviation:  J. Physiol. Biochem.     Publication Date:  1999 Dec 
Date Detail:
Created Date:  2000-05-25     Completed Date:  2000-05-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9812509     Medline TA:  J Physiol Biochem     Country:  SPAIN    
Other Details:
Languages:  eng     Pagination:  293-9     Citation Subset:  IM; S    
Affiliation:
Depto. Fisiología y Farmacología, Fisiología Animal, Facultad de Biología, Universidad de Murcia, Spain. marchi@fcu.um.es
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MeSH Terms
Descriptor/Qualifier:
Amino Acids / blood,  metabolism*
Animals
Anserine / metabolism
Muscles / metabolism
Oncorhynchus mykiss / blood,  metabolism*
Physical Conditioning, Animal / physiology
Chemical
Reg. No./Substance:
0/Amino Acids; 584-85-0/Anserine

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


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