rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
1-2
|
pubmed:dateCreated |
1997-7-30
|
pubmed:abstractText |
The present experiments examined the ability of the novel 5-HT1A receptor antagonist to block responses mediated by postsynaptic and presynaptic 5-HT1A receptors in vivo. Pretreatment with p-MPPI reduced or blocked the effect of the 5-HT1A receptor agonist 8-OH-DPAT on two responses mediated by postsynaptic 5-HT1A receptors, reduction of body temperature and the 5-HT behavioral syndrome. Administration of p-MPPI alone did not alter body temperature or produce symptoms of the 5-HT syndrome. Pretreatment with p-MPPI also blocked the ability of 8-OH-DPAT to reduce extracellular 5-HT in the striatum, a response mediated by presynaptic 5-HT1A receptors in the dorsal raphe nucleus, but did not alter striatal 5-HT when administered alone. These results indicate that p-MPPI is an effective 5-HT1A receptor antagonist in vivo with no intrinsic activity. p-MPPI may prove to be a useful pharmacological tool for studying 5-HT1A receptors and their involvement in anxiety and affective disorders.
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pubmed:grant |
|
pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:issn |
0091-3057
|
pubmed:author |
|
pubmed:issnType |
Print
|
pubmed:volume |
57
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
301-7
|
pubmed:dateRevised |
2010-11-18
|
pubmed:meshHeading |
pubmed-meshheading:9164586-8-Hydroxy-2-(di-n-propylamino)tetralin,
pubmed-meshheading:9164586-Aminopyridines,
pubmed-meshheading:9164586-Animals,
pubmed-meshheading:9164586-Behavior, Animal,
pubmed-meshheading:9164586-Body Temperature Regulation,
pubmed-meshheading:9164586-Corpus Striatum,
pubmed-meshheading:9164586-Male,
pubmed-meshheading:9164586-Microdialysis,
pubmed-meshheading:9164586-Piperazines,
pubmed-meshheading:9164586-Presynaptic Terminals,
pubmed-meshheading:9164586-Rats,
pubmed-meshheading:9164586-Rats, Sprague-Dawley,
pubmed-meshheading:9164586-Serotonin,
pubmed-meshheading:9164586-Serotonin Antagonists,
pubmed-meshheading:9164586-Serotonin Receptor Agonists
|
pubmed:articleTitle |
The 5-HT1A receptor antagonist p-MPPI blocks responses mediated by postsynaptic and presynaptic 5-HT1A receptors.
|
pubmed:affiliation |
Department of Psychiatry, University of Pennsylvania, Philadelphia 19104-2649, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|