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| Content Provider | PubMed Central |
|---|---|
| Author | Jutkiewicz, Emily M. Kaminsky, Sarah T. Rice, Kenner C. Traynor, John R. Woods, James H. |
| Abstract | Nonpeptidic δ-opioid agonists produce a number of behaviors, such as antidepressant-like effects, locomotor stimulation, antinociception, and convulsions. To consider this class of compounds as potential therapeutics for humans, the effects of δ-opioid agonists after repeated administration must be evaluated. Therefore, the present study investigated the effects of repeated δ-opioid agonist, SNC80 ([(+)-4-[(αR)-α-[(2S,5R)-2,5-dimethyl-4-(2-propenyl)-1-piperazinyl]-(3-methoxyphenyl)-methyl]-N,N-diethylbenzamide), administration on its antidepressant-like effects in the forced swim test, locomotor activity, and convulsions in male Sprague-Dawley rats. Tolerance developed rapidly to the convulsive and locomotor-stimulating effects of SNC80 but not to the antidepressant-like effects. In addition, tolerance was evaluated at the level of the receptor-G protein interaction by measuring 5′-O-(3-[35S]thio)triphosphate binding in brains from rats that were pretreated with SNC80. With various exposure durations to SNC80, some brain regions demonstrated tolerance at different times, suggesting that adaptations in the δ-opioid system may occur during agonist exposure. Overall, the lack of observable tolerance to the antidepressant-like effects of SNC80 indicates that this class of compounds has potential as a novel antidepressant therapy. |
| Related Links | http://dx.doi.org/10.1124/jpet.105.088831 |
| Starting Page | 414 |
| File Format | |
| ISSN | 15210103 |
| e-ISSN | 15210103 |
| Journal | The Journal of pharmacology and experimental therapeutics |
| Issue Number | 1 |
| Volume Number | 315 |
| Language | English |
| Publisher Date | 2005-10-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Molecular Medicine Pharmacology |
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