Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2001-4-20
pubmed:abstractText
Food deprivation inhibits estrous behavior in several species of rodents, but little is known about the neurotransmitter systems mediating this phenomenon. We determined whether partial blockade of opioid receptors by continuous infusion of naltrexone and/or acute peripheral injection of cholecystokinin (CCK) administration would overcome the suppressive effects of food deprivation on estrous behavior in Syrian hamsters. Contrary to expectation, naltrexone produced a slight suppression of estrous behavior, and systemic CCK administration had no effect. This dose of naltrexone was sufficient to reduce in vivo binding of [(3)H]naloxone in the brain, and both compounds affected other parameters such as food intake and body weight gain. Thus, the doses of CCK and naltrexone that were used were physiologically effective. These findings suggest that neither peripheral CCK nor opioid systems are likely to play a major role in the suppression of hamster estrous behavior by food deprivation.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0196-9781
pubmed:author
pubmed:issnType
Print
pubmed:volume
22
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
601-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Effects of naltrexone and CCK on estrous behavior and food intake in Syrian hamsters.
pubmed:affiliation
Center for Neuroendocrine Studies, University of Massachusetts, Amherst, MA 01003-7720, USA. jones@cns.umass.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.