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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1998-9-23
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pubmed:abstractText |
Tramadol is a centrally acting analgesic with several modes of action. Enhancement of 5-hydroxytryptamine release contributes to its actions. We investigated in which way tramadol induces 5-hydroxytryptamine release. Rat brain frontal cortex slices were preincubated with [3H]5-hydroxytryptamine, then superfused using conditions which impaired either carrier mediated release or exocytosis. Tramadol (10 and 100 microM), fenfluramine (1 microM) and reserpine (10 microM) enhanced the basal release of [3H]5-hydroxytryptamine. In the presence of a high concentration of 6-nitroquipazine effects of tramadol were reduced and those of fenfluramine abolished. Effects by reserpine were enhanced, indicating that [3H]5-hydroxytryptamine depletion was counteracted by reuptake. When NaCl was replaced by LiCl, tramadol did not affect [3H]5-hydroxytryptamine release, fenfluramine induced a small and reserpine a marked facilitation. Omission of CaCl2 did not alter fenfluramine and reserpine effects while those by tramadol were reduced. It is concluded that tramadol induces both carrier mediated 5-hydroxytryptamine release as well as exocytosis.
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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/Analgesics, Opioid,
http://linkedlifedata.com/resource/pubmed/chemical/Fenfluramine,
http://linkedlifedata.com/resource/pubmed/chemical/Reserpine,
http://linkedlifedata.com/resource/pubmed/chemical/Serotonin,
http://linkedlifedata.com/resource/pubmed/chemical/Tramadol
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
22
|
pubmed:volume |
349
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
199-203
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9671098-Analgesics, Opioid,
pubmed-meshheading:9671098-Animals,
pubmed-meshheading:9671098-Fenfluramine,
pubmed-meshheading:9671098-Male,
pubmed-meshheading:9671098-Prefrontal Cortex,
pubmed-meshheading:9671098-Rats,
pubmed-meshheading:9671098-Rats, Sprague-Dawley,
pubmed-meshheading:9671098-Reserpine,
pubmed-meshheading:9671098-Serotonin,
pubmed-meshheading:9671098-Tramadol
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pubmed:year |
1998
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pubmed:articleTitle |
Induction of 5-hydroxytryptamine release by tramadol, fenfluramine and reserpine.
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pubmed:affiliation |
Grünenthal, Abteilung Pharmakologie, Aachen, Germany.
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pubmed:publicationType |
Journal Article,
Comparative Study
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