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• W2040911489 endingPage "e7952" @default.
• W2040911489 startingPage "e7952" @default.
• W2040911489 abstract "The amphetamine derivative 3,4-methylenedioxymethamphetamine (MDMA, ecstasy) reverses dopamine and serotonin transporters to produce efflux of dopamine and serotonin, respectively, in regions of the brain that have been implicated in reward. However, the role of serotonin/dopamine interactions in the behavioral effects of MDMA remains unclear. We previously showed that MDMA-induced locomotion, serotonin and dopamine release are 5-HT2B receptor-dependent. The aim of the present study was to determine the contribution of serotonin and 5-HT2B receptors to the reinforcing properties of MDMA. We show here that 5-HT2B−/− mice do not exhibit behavioral sensitization or conditioned place preference following MDMA (10 mg/kg) injections. In addition, MDMA-induced reinstatement of conditioned place preference after extinction and locomotor sensitization development are each abolished by a 5-HT2B receptor antagonist (RS127445) in wild type mice. Accordingly, MDMA-induced dopamine D1 receptor-dependent phosphorylation of extracellular regulated kinase in nucleus accumbens is abolished in mice lacking functional 5-HT2B receptors. Nevertheless, high doses (30 mg/kg) of MDMA induce dopamine-dependent but serotonin and 5-HT2B receptor-independent behavioral effects. These results underpin the importance of 5-HT2B receptors in the reinforcing properties of MDMA and illustrate the importance of dose-dependent effects of MDMA on serotonin/dopamine interactions." @default.
• W2040911489 created "2016-06-24" @default.
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• W2040911489 date "2009-11-23" @default.
• W2040911489 modified "2023-09-25" @default.
• W2040911489 title "Role of Serotonin via 5-HT2B Receptors in the Reinforcing Effects of MDMA in Mice" @default.
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• W2040911489 doi "https://doi.org/10.1371/journal.pone.0007952" @default.
• W2040911489 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2775951" @default.
• W2040911489 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19956756" @default.
• W2040911489 hasPublicationYear "2009" @default.
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