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Titolo:
Effects of repeated cocaine treatment on striatal dopamine release in alcohol-preferring AA and alcohol-avoiding ANA rats
Autore:
Mikkola, JAV; Honkanen, A; Piepponen, TP; Kiianmaa, K; Ahtee, L;
Indirizzi:
Univ Helsinki, Dept Pharm, Div Pharmacol & Toxicol, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ol, FIN-00014 Helsinki, Finland Natl Publ Hlth Inst, Dept Mental Hlth & Alcohol Res, SF-00300 Helsinki, Finland Natl Publ Hlth Inst Helsinki Finland SF-00300 SF-00300 Helsinki, Finland
Titolo Testata:
NAUNYN-SCHMIEDEBERGS ARCHIVES OF PHARMACOLOGY
fascicolo: 2, volume: 363, anno: 2001,
pagine: 209 - 214
SICI:
0028-1298(200102)363:2<209:EORCTO>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
FREELY MOVING RATS; EXTRACELLULAR DOPAMINE; BEHAVIORAL SENSITIZATION; NUCLEUS-ACCUMBENS; TIME COURSE; EXPRESSION; MICRODIALYSIS; ADDICTION; INITIATION; MORPHINE;
Keywords:
alcohol preference; cocaine; microdialysis; dopamine; selected rat lines; sensitization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Ahtee, L Univ Helsinki, Dept Pharm, Div Pharmacol & Toxicol, POB 56, FIN-00014 Helsinki, Finland Univ Helsinki POB 56 Helsinki Finland FIN-00014 elsinki, Finland
Citazione:
J.A.V. Mikkola et al., "Effects of repeated cocaine treatment on striatal dopamine release in alcohol-preferring AA and alcohol-avoiding ANA rats", N-S ARCH PH, 363(2), 2001, pp. 209-214

Abstract

Modulation of striatal dopamine (DA) release by acute or repeated cocaine treatment was studied in the nucleus accumbens and caudate-putamen of alcohol-preferring (AA, Alko Alcohol) and alcohol-avoiding (ANA, Alko Non-Alcohol) rats. Cocaine (5-10 mg/kg i.p.) was administered daily for 4 days and the concentrations of extracellular DA measured by in vivo microdialysis on days 1 and 4 in the freely moving rats. The first administration of cocaine increased DA concentration similarly in rats of both lines in both the nucleus accumbens and caudate-putamen. On the 4th day, the effect of cocaine was significantly larger in the nucleus accumbens of AA than in that of ANA rats, whereas no such enhanced effect of cocaine was found in the caudate-putamen of either line. The results suggest that mesolimbic DA release in response to cocaine is sensitized more readily in AA than in ANA rats, which would not only render the former more susceptible to alcohol, but to other drugs of abuse, and might explain our previous findings that AA rats are more susceptible to psychomotor sensitization than ANA rats.

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Documento generato il 05/04/20 alle ore 08:30:41