Linked Life Data

10867975

Source:http://linkedlifedata.com/resource/pubmed/id/10867975

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2000-10-11
pubmed:abstractText
Previous studies of conventional tricyclic and non-tricyclic antidepressants have suggested that a number of these drugs display considerable pharmacological activity at 5-HT2C receptors in the brain. There is evidence that 5-HT2C receptors are involved in the control of the activity of the central dopaminergic system. Therefore, the effects of amitriptyline (5 mg/kg and 10 mg/kg i.p.) and of the atypical antidepressant mianserin (2.5 mg/kg and 5 mg/kg i.p.) were studied on the extracellular concentration of dopamine (DA) in the nucleus accumbens of chloral hydrate-anesthetized rats, using intracerebral microdialysis. Amitriptyline and mianserin significantly increased DA release (+31.1 +/- 7.9% and +33.6 +/- 4.3%, respectively) at the higher doses. In addition, lower doses of mianserin (2.5 mg/kg i.p.) and amitriptyline (5 mg/kg i.p.) blocked the inhibitory action of RO 60-0175 (1 mg/kg i.p.), a selective 5-HT2C receptor agonist, on DA release. The effect of RO 60-0175 (1 mg/kg i.p.) was completely blocked by SB 242084 (2.5 mg/kg i.p.), a selective and powerful 5-HT2C receptor antagonist. Taken together, these data indicate that amitriptyline and mianserin increase DA release in the nucleus accumbens by blocking 5-HT2C receptors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0033-3158
pubmed:author
pubmed:issnType
Print
pubmed:volume
150
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
45-51
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Acute administration of amitriptyline and mianserin increases dopamine release in the rat nucleus accumbens: possible involvement of serotonin2C receptors.
pubmed:affiliation
Istituto di Ricerche Farmacologiche Mario Negri, Consorzio Mario Negri Sud, Chieti, Italy.
pubmed:publicationType
Journal Article