Document Detail

Brown and white adipose tissue lipid composition in three successive progenies of rats: effects of ethanol exposure.
MedLine Citation:
PMID:  11901980     Owner:  NLM     Status:  MEDLINE    
The effect of ethanol exposure on the fatty acid composition of brown and white adipose tissue in three successive rat progenies at the end of an experimental period (24 weeks) was studied. Ethanol-treated rats received a standard rat chow diet and 5, 10 and 15% ethanol in the ad libitum drinking fluid over 3 successive weeks. Then a concentration of 20% ethanol was maintained for 5 additional weeks up to the end of the experimental period. The males and females in the ethanol treated group were mated to obtain the 1st generation of offspring. Then female and male rats from the 1st generation were mated to obtain the 2nd generation. Finally, males and females from the 2nd generation were mated to obtain the 3rd generation of ethanol treated rats. Another group served as control and received only water and a standard rat chow diet. The control group was handled in the same way as the other experimental groups. In the 1st and 2nd generations the percentage of stearic acid (18:0) decreased and palmitoleic (16:1n7) and oleic acid (18:1n9) increased in both adipose tissues of ethanol-treated rats with respect to control. Additionally, n-3 and n-6 series were reduced both in brown and white adipose tissues. In the 3rd generation the fatty acid composition of the white adipose tissue was similar to that of control rats. Thus, no significant difference in essential fatty acids and oleic acid (18:1n9) were found. However, the fatty acid composition of the brown adipose tissue, in the 3rd generation, was similar to that observed in the 1st and 2nd generation. Thus, a decrease in essential fatty acids and an increase in oleic acid (18:1n9) was found. This suggests adaptation to ethanol consumption during successive progenies in white adipose tissue. However, in brown adipose tissue the values indicate a triglyceride storing during the thermogenesis, which is more important to newborns.
E Tavares; A Gómez-Tubío; M L Murillo; O Carreras
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archiv für Tierernährung     Volume:  55     ISSN:  0003-942X     ISO Abbreviation:  Arch Tierernahr     Publication Date:  2001  
Date Detail:
Created Date:  2002-03-20     Completed Date:  2002-04-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0217641     Medline TA:  Arch Tierernahr     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  53-67     Citation Subset:  IM    
Department of Physiology and Animal Biology, School of Pharmacy, University of Seville, Tramontana s/n, 41012 Seville, Spain.
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MeSH Terms
Adaptation, Physiological
Adipose Tissue / drug effects*,  metabolism
Adipose Tissue, Brown / drug effects*,  metabolism
Alcohol Drinking
Body Composition / drug effects
Ethanol / metabolism,  pharmacology*
Fatty Acids, Essential / metabolism*
Fatty Acids, Omega-3 / metabolism
Fatty Acids, Omega-6
Fatty Acids, Unsaturated / metabolism
Oleic Acid / metabolism*
Random Allocation
Rats, Wistar
Reg. No./Substance:
0/Fatty Acids, Essential; 0/Fatty Acids, Omega-3; 0/Fatty Acids, Omega-6; 0/Fatty Acids, Unsaturated; 112-80-1/Oleic Acid; 64-17-5/Ethanol

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