Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2008-5-12
pubmed:abstractText
Clinical and animal studies indicate that selective serotonin-reuptake inhibitors (SSRIs) may help to reduce alcohol intake but investigations led to conflicting results. A few studies indicated that serotonin (5-HT) may modulate the brain beta-endorphin level, which plays an important role in the development of alcohol craving. Our study examined the influence of fluoxetine on the endogenous opioid system. We investigated plasma levels of beta-endorphin in rats with either high alcohol preference (Warsaw High-Preferring; WHP) or low alcohol preference (Warsaw Low-Preferring; WLP) after repeated treatment with fluoxetine (5 mg/kg i.p. for 21 days). We examined the rats 24 hours after fluoxetine treatment in order to determine whether chronic fluoxetine produces a long-term change in the beta-endorphin levels. The animals received either a single dose of ethanol (2 g/kg) or an identical single dose of saline one hour before blood collection. While a few studies observed an increase in the level of beta-endorphin after a single fluoxetine injection, we did not observe any increase in beta-endorphin plasma levels after repeated fluoxetine treatment. We also did not observe any changes in beta-endorphin levels of rats treated with fluoxetine and injected with ethanol. A lack of increase of beta-endorphin levels may explain why fluoxetine has a limited value in the prevention of craving for alcohol.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0031-7144
pubmed:author
pubmed:issnType
Print
pubmed:volume
63
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
308-11
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Lack of changes in beta-endorphin plasma levels after repeated treatment with fluoxetine: possible implications for the treatment of alcoholism--a pilot study.
pubmed:affiliation
Department of Pharmacodynamics, Medical University of Lodz, Poland. jzalewska@pharm.am.lodz.pl
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't