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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1992-10-13
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pubmed:abstractText |
The ability of three 5-HT1 receptor agonists, 5-HT (5-hydroxytryptamine), 5-CT (5-carboxyamidotryptamine) and sumatriptan to inhibit the binding of [3H]5-HT, in the presence of cyanopindolol and mesulergine, from cerebral cortical and/or caudate membranes in seven species (dog, guinea-pig, rabbit, pig, human, hamster and calf) has been investigated. Under the experimental conditions used, 5-CT and sumatriptan consistently yielded displacement curves best fit to a two-site model whereas 5-HT always gave a monophasic displacement curve. The pIC50 values obtained with 5-HT displacement gave a mean of 8.1 +/- 0.1 (mean +/- S.E.M.). In contrast the biphasic displacement curves for 5-CT and sumatriptan yielded high and low affinity pIC50 values of 8.3 +/- 0.1, 5.5 +/- 0.1 and 7.6 +/- 0.1, 5.0 +/- 0.1, respectively. These data indicate that under these experimental conditions the high affinity component labelled by [3H]5-HT is the same receptor subtype, previously denoted the 5-HT1D receptor, in all seven species.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/5-carboxamidotryptamine,
http://linkedlifedata.com/resource/pubmed/chemical/Indoles,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Serotonin,
http://linkedlifedata.com/resource/pubmed/chemical/Serotonin,
http://linkedlifedata.com/resource/pubmed/chemical/Sulfonamides,
http://linkedlifedata.com/resource/pubmed/chemical/Sumatriptan
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
24
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pubmed:volume |
213
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
193-7
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pubmed:dateRevised |
2005-11-17
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pubmed:meshHeading |
pubmed-meshheading:1325915-Animals,
pubmed-meshheading:1325915-Brain,
pubmed-meshheading:1325915-Cattle,
pubmed-meshheading:1325915-Caudate Nucleus,
pubmed-meshheading:1325915-Cerebral Cortex,
pubmed-meshheading:1325915-Cricetinae,
pubmed-meshheading:1325915-Dogs,
pubmed-meshheading:1325915-Guinea Pigs,
pubmed-meshheading:1325915-Humans,
pubmed-meshheading:1325915-Indoles,
pubmed-meshheading:1325915-Kinetics,
pubmed-meshheading:1325915-Rabbits,
pubmed-meshheading:1325915-Radioligand Assay,
pubmed-meshheading:1325915-Receptors, Serotonin,
pubmed-meshheading:1325915-Serotonin,
pubmed-meshheading:1325915-Species Specificity,
pubmed-meshheading:1325915-Sulfonamides,
pubmed-meshheading:1325915-Sumatriptan,
pubmed-meshheading:1325915-Swine
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pubmed:year |
1992
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pubmed:articleTitle |
An investigation of the 5-HT1D receptor binding affinity of 5-hydroxytryptamine, 5-carboxyamidotryptamine and sumatriptan in the central nervous system of seven species.
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pubmed:affiliation |
Merck Sharp and Dohme Research Laboratories, Neuroscience Research Centre, Harlow, Essex, U.K.
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pubmed:publicationType |
Journal Article
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