Document Detail

Intake and hedonics of calcium and sodium during pregnancy and lactation in the rat.
MedLine Citation:
PMID:  11897257     Owner:  NLM     Status:  MEDLINE    
These experiments sought to distinguish whether increased calcium intake during pregnancy and lactation in the rat is due to arousal of a specific calcium appetite, with altered taste hedonics, as occurs with sodium depletion, to reduced taste sensitivity, or to the hyperdipsia of reproduction. We find that, during pregnancy and lactation, CaCl(2) intake is not increased more (in fact less) than intakes of control tastants, MgCl(2) and quinine HCl, and multiparous dams do not have a greater calcium intake than primaparous dams. Changes in taste reactivity to CaCl(2) and to NaCl do not correlate with changes in intake of these minerals during pregnancy or lactation, suggesting that alterations in hedonics or sensitivity do not explain the increased intake of these minerals. Taken together with the increased intake of all the tastants, it may be that the increased intakes of calcium and sodium during reproduction are not due to respective specific appetites or to a general mineral appetite but rather to the reproduction-increased ingestion that may meet all the dam's increased mineral and nutrient requirements. Differences in the degree of increased intakes of tastes may be due to specific alterations in their transduction during reproduction.
M Leshem; T Levin; J Schulkin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Physiology & behavior     Volume:  75     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  2002 Mar 
Date Detail:
Created Date:  2002-03-18     Completed Date:  2002-04-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  313-22     Citation Subset:  IM    
Department of Psychology, University of Haifa, Haifa, 31905, Israel.
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MeSH Terms
Behavior, Animal / drug effects
Calcium, Dietary / pharmacology*
Drinking / physiology
Eating / drug effects
Feeding Behavior / drug effects
Lactation / psychology*
Magnesium Chloride / pharmacology
Parity / physiology
Pregnancy, Animal / psychology*
Quinine / diagnostic use
Rats, Sprague-Dawley
Sodium, Dietary / pharmacology*
Sucrose / diagnostic use
Taste / drug effects
Reg. No./Substance:
0/Calcium, Dietary; 0/Sodium, Dietary; 130-95-0/Quinine; 57-50-1/Sucrose; 7786-30-3/Magnesium Chloride

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