Document Detail


Hyperphagia in rats produced by a mixture of fat and sugar.
MedLine Citation:
PMID:  2326345     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The hyperphagic and weight-promoting effects of feeding rats a sugar-fat mixture were compared to those of presenting only one of the two nutrients. Experimental groups were fed sugar (sucrose), fat (corn oil), or a sugar-fat mixture as an option to chow; options were in the form of water solutions or emulsions. The control group was fed only chow. The sugar-fat group displayed a robust hyperphagia (greater than 36%), relative to the control group; the hyperphagic response was greater than that observed in the fat group but not in the sugar group. The sugar-fat group selected more calories from the option than the other two experimental groups. Body weight gains were also greater in the sugar-fat group than in the fat and sugar groups. Addition of saccharin to the fat emulsion increased fat and total intakes to levels close to those of the sugar-fat mixture. In a second experiment, the relative palatability of the plain and sweet fat emulsions was assessed with two-bottle preference tests. The sugar-fat mixture was preferred to the saccharin-fat mixture, which in turn was preferred to the plain-fat emulsion. These results suggest that the sweetness of the sugar-fat mixture contributed to the pronounced hyperphagia and obesity obtained with this diet option.
Authors:
F Lucas; A Sclafani
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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:  Physiology & behavior     Volume:  47     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  1990 Jan 
Date Detail:
Created Date:  1990-05-21     Completed Date:  1990-05-21     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  51-5     Citation Subset:  IM    
Affiliation:
Department of Psychology, Brooklyn College, NY 11210.
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MeSH Terms
Descriptor/Qualifier:
Animals
Corn Oil / pharmacology*
Diet
Emulsions
Energy Intake / drug effects
Female
Food Preferences
Hyperphagia / etiology*
Plant Oils / pharmacology*
Rats
Rats, Inbred Strains
Saccharin / pharmacology*
Sucrose / pharmacology*
Weight Gain / drug effects*
Grant Support
ID/Acronym/Agency:
DK-26687/DK/NIDDK NIH HHS; DK-31135/DK/NIDDK NIH HHS; MH43332/MH/NIMH NIH HHS
Chemical
Reg. No./Substance:
0/Emulsions; 0/Plant Oils; 57-50-1/Sucrose; 8001-30-7/Corn Oil; 81-07-2/Saccharin

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


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