rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1
|
pubmed:dateCreated |
1983-8-11
|
pubmed:abstractText |
Trifluoperazine and chlorpromazine inhibited in a dose-dependent manner the stimulation of glycogenolysis, gluconeogenesis, and ureogenesis due to alpha 1-adrenergic stimulation in rat hepatocytes. In contrast, the antipsychotic agents were unable to block the inhibition of adenylate cyclase due to alpha 2-adrenergic activation in hamster adipocytes. Binding experiments showed that trifluoperazine and chlorpromazine at low concentrations displaced tritiated dihydroergocryptine binding from rat liver membranes (alpha 1-adrenergic sites), whereas very large concentrations of the phenothiazine derivatives were required to displace dihydroergocryptine from hamster adipocyte membranes (alpha 2-adrenergic sites). It is concluded that chlorpromazine and trifluoperazine are much more potent at alpha 1- than at alpha 2-adrenergic receptors. The use of rat hepatocytes and hamster adipocytes to study the alpha-adrenergic subtype selectivity of drugs is proposed.
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jan
|
pubmed:issn |
0026-895X
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
23
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
67-70
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:6135146-Adipose Tissue,
pubmed-meshheading:6135146-Adrenergic alpha-Antagonists,
pubmed-meshheading:6135146-Animals,
pubmed-meshheading:6135146-Chlorpromazine,
pubmed-meshheading:6135146-Cricetinae,
pubmed-meshheading:6135146-Dihydroergotoxine,
pubmed-meshheading:6135146-Female,
pubmed-meshheading:6135146-Gluconeogenesis,
pubmed-meshheading:6135146-Glycolysis,
pubmed-meshheading:6135146-Liver,
pubmed-meshheading:6135146-Mesocricetus,
pubmed-meshheading:6135146-Rats,
pubmed-meshheading:6135146-Receptors, Adrenergic,
pubmed-meshheading:6135146-Receptors, Adrenergic, alpha,
pubmed-meshheading:6135146-Trifluoperazine,
pubmed-meshheading:6135146-Urea
|
pubmed:year |
1983
|
pubmed:articleTitle |
Trifluoperazine and chlorpromazine antagonize alpha 1- but not alpha2- adrenergic effects.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|