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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Carati, Caleb Schenk, Susan |
| Description | Country affiliation: New Zealand Author Affiliation: Carati C ( School of Psychology, Victoria University of Wellington, Wellington 6140, New Zealand.) |
| Abstract | It has been suggested that dopaminergic mechanisms mediate relapse to drug-seeking behavior and both D1- and D2-like receptor mechanisms have been implicated. In contrast to self-administration of other drugs, there is a relative paucity of studies that has examined the pharmacological basis of methamphetamine (MA) seeking. Accordingly, the present study used an animal model of drug-seeking to determine the role of D1- and D2-like receptor mechanisms in relapse to MA abuse. Rats were trained to self-administer MA, and then responding was extinguished by replacing the MA solution with vehicle. Experimenter-administered injections of MA or the dopamine uptake inhibitor, GBR 12909, reinstated extinguished responding in a dose-dependent manner. The D1-like antagonist, SCH 23390 attenuated drug-seeking but the D2-like antagonist, eticlopride, was ineffective. The results suggest that MA-seeking is predominantly mediated by DA D1-like receptor mechanisms. These findings are in contrast to the literature on drug-seeking following self-administration of other drugs, and suggest that relapse to different drugs of abuse may rely upon different DA receptor mechanisms. |
| File Format | HTM / HTML |
| ISSN | 00913057 |
| Issue Number | 3 |
| Volume Number | 98 |
| e-ISSN | 18735177 |
| Journal | Pharmacology Biochemistry and Behavior |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-05-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Behavioral Sciences Discipline Biochemistry Discipline Pharmacology Methamphetamine Administration & Dosage Receptors, Dopamine D1 Physiology Receptors, Dopamine D2 Animals Male Piperazines Pharmacology Rats Rats, Sprague-dawley Self Administration Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biological Psychiatry Behavioral Neuroscience Biochemistry Clinical Biochemistry Toxicology Pharmacology |
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