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| Content Provider | Springer Nature Link |
|---|---|
| Author | Sokoloff, Pierre Foll, Bernard Le Perachon, Sylvie Bordet, Regis Ridray, Sophie Schwartz, Jean Charles |
| Copyright Year | 2001 |
| Abstract | Hedonic and reinforcing properties of drugs of abuse are closely related to brain dopamine neuron activity. All these drugs increase dopamine release in the shell of nucleus accumbens, a brain region in which neurons co-express the D$_{1}$ (D$_{1}$R) and D$_{3}$ (D$_{3}$R) dopamine receptor subtypes, that converging pharmacological, human post-mortem and genetic studies suggest to be implicated in drug addiction. The D$_{3}$R, through a cross-talk with the D$_{1}$R, is involved in induction and expression of behavioral sensitization to levodopa in rats bearing unilateral lesions of dopamine neurons. Behavioral sensitization, a cardinal feature of addiction arises from repeated administration of drugs of abuse is thought to play a role in intensification of reinforcing efficacy of these drugs observed under certain conditions. Stimulation of the D$_{3}$R also appears to enhance the reinforcing effect of cocaine in rats. By interacting with these processes, D$_{3}$R agents have potential therapeutic applications for treating drug addiction. BP 897 (N-[4-(4-(2-methoxyphenyl) piperazin-1-yl) butyl] naphtalen 2-carboxamide dichlorhydrate), a partial and highly selective D$_{3}$R agonistin vitro, behaves as an agonist or an antagonistin vivo depending on the response considered. BP 897 has the unprecedented property to reduce cocaine-seeking behavior induced by presentation of a cocaine-associated cue, without having any intrinsic reinforcing effect. As drug-associated cues maintain drug-seeking in animals and elicit craving and relapse in humans, D$_{3}$R agents like BP 897 may represent new medications for drug addiction, with minimal liability to maintaining dependence. |
| Starting Page | 433 |
| Ending Page | 441 |
| Page Count | 9 |
| File Format | |
| ISSN | 10298428 |
| Journal | Neurotoxicity Research |
| Volume Number | 3 |
| Issue Number | 5 |
| e-ISSN | 14763524 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2001-01-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | nucleus accumbens shell behavioral sensitization cocaine drug-associated cues D$_{3}$ receptor Neurosciences Pharmaceutical Sciences/Technology Neurology Neurochemistry Pharmacology/Toxicology Neurobiology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Neuroscience Toxicology |
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