Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1998-9-23
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0014-2999
pubmed:author
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
349
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
199-203
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Induction of 5-hydroxytryptamine release by tramadol, fenfluramine and reserpine.
pubmed:affiliation
Grünenthal, Abteilung Pharmakologie, Aachen, Germany.
pubmed:publicationType
Journal Article, Comparative Study