Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1997-1-14
pubmed:abstractText
Rats rapidly become anorectic when eating an amino acid-imbalanced diet that induces a deficiency of an indispensable amino acid. Recognition of amino acid deficiency is thought to be a function of the anterior piriform cortex. However, the neuronal circuitry underlying the secondary learned aversion to such diets may involve the amygdala. In this study, Fos immunohistochemistry was employed to identify regions of the brain activated during the learned aversion phase of the response to an amino acid-imbalanced diet. c-Fos expression was examined in the brains of rats at intervals from 1 to 6 h after introduction of a diet imbalanced in threonine, a corrected (amino acid-balanced) diet or a basal (low protein) diet. The study has revealed that, within the time frame associated with the learned aversive response, Fos-immunoreactive (Fos-IR) neurons increased selectively in the central nucleus of the amygdala in animals fed a threonine-imbalanced diet. These results suggest a temporal relationship between changes in neuronal activity in the central nucleus of the amygdala and the learned aversion associated with acute amino acid deficiency.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0169-328X
pubmed:author
pubmed:issnType
Print
pubmed:volume
40
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
35-41
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Temporal-spatial pattern of c-Fos expression in the rat brain in response to indispensable amino acid deficiency. II. The learned taste aversion.
pubmed:affiliation
Department of Veterinary Anatomy, Physiology and Cell Biology, University of California at Davis 95616, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't