Document Detail

Extracellular glutamate decrease in accumbens following cued food delivery.
MedLine Citation:
PMID:  12802189     Owner:  NLM     Status:  MEDLINE    
This study examined the effects of cued vs non-cued food delivery/consumption on extracellular glutamate and dopamine in the nucleus accumbens of food-deprived rats. Animals that always received a food pellet following a series of auditory tones showed a significant decrease in extracellular glutamate following food consumption, whereas animals that had not been previously exposed to tone-food pairing did not (p<0.05). In contrast, extracellular dopamine was significantly increased in the nucleus accumbens during the first time period after food consumption (p<0.05) regardless of whether animals had been exposed to prior tone-food pairing. Results suggest that food delivery/consumption is associated with a decrease in accumbal glutamate if food delivery has been previously paired with predictive environmental cues.
Mary Ann Chapman; John M Roll; Samuel Park; Matthew P Galloway
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Neuroreport     Volume:  14     ISSN:  0959-4965     ISO Abbreviation:  Neuroreport     Publication Date:  2003 May 
Date Detail:
Created Date:  2003-06-12     Completed Date:  2003-09-02     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9100935     Medline TA:  Neuroreport     Country:  England    
Other Details:
Languages:  eng     Pagination:  991-4     Citation Subset:  IM    
Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Cellular and Clinical Neurobiology and Substance Abuse Division, USA.
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MeSH Terms
Acoustic Stimulation
Eating / physiology*
Extracellular Space / metabolism*
Food Deprivation / physiology*
Glutamic Acid / metabolism*
Nucleus Accumbens / metabolism*
Rats, Sprague-Dawley
Grant Support
Reg. No./Substance:
56-86-0/Glutamic Acid

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

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