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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Fang, Qin Li, Fang-Qiong Li, Yan-Qin Xue, Yan-Xue He, Ying-Ying Liu, Jian-Feng Lu, Lin Wang, Ji-Shi |
| Description | Country affiliation: China Author Affiliation: Fang Q ( School of Pharmacy and Affiliated Hospital of Guiyang Medical University, Guiyang 550004, China.) |
| Abstract | Exposure to cues previously associated with drug intake leads to relapse by activating previously acquired memories. Based on previous findings, in which cannabinoid CB(1) receptors were found to be critically involved in specific aspects of learning and memory, we investigated the role of CB(1) receptors in nicotine reward memory using a rat conditioned place preference (CPP) model. In Experiment 1, rats were trained for CPP with alternating injections of nicotine (0.5mg/kg, s.c.) and saline to acquire the nicotine-conditioned memory. To examine the effects of rimonabant on the reconsolidation of nicotine reward memory, rats were administered rimonabant (0, 0.3, and 3.0mg/kg, i.p.) immediately after reexposure to the drug-paired context. In Experiment 2, rats were trained for CPP similarly to Experiment 1. To examine the effects of rimonabant on the reinstatement of nicotine reward memory, rimonabant (0, 0.3, and 3.0mg/kg, i.p.) was administered before the test of nicotine-induced CPP reinstatement. In Experiment 3, to evaluate whether rimonabant itself produces a reward memory, rats were trained for CPP with alternating injections of different doses of rimonabant (0, 0.3, and 3.0mg/kg) and saline. Rimonabant at a dose of 3.0mg/kg significantly disrupted the reconsolidation of nicotine memory and significantly blocked the reinstatement of nicotine-induced CPP. However, rimonabant itself did not produce CPP. These findings provide clear evidence that CB(1) receptors play a role in nicotine reward memory, suggesting that CB(1) receptor antagonists may be a potential target for managing nicotine addiction. |
| File Format | HTM / HTML |
| ISSN | 00913057 |
| Issue Number | 4 |
| Volume Number | 99 |
| e-ISSN | 18735177 |
| Journal | Pharmacology Biochemistry and Behavior |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2011-10-01 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Behavioral Sciences Discipline Biochemistry Discipline Pharmacology Memory Drug Effects Nicotine Pharmacology Nicotinic Agonists Piperidines Pyrazoles Receptor, Cannabinoid, Cb1 Antagonists & Inhibitors Reward Animals Avoidance Learning Conditioning, Operant Male Rats Rats, Sprague-dawley 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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