Psilocybin administered following extinction sessions does not affect subsequent cocaine cue reinstatement in male and female rats and mice
There are currently no pharmacological treatments for cocaine use disorder. Recently there has been a great deal of interest in the potential of psychedelic drugs such as psilocybin to treat psychiatric disorders. Human studies have indicated that a single administration of psilocybin can have long-...
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| Main Authors: | , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
1 November 2024
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| In: |
Neuroscience
Year: 2024, Volume: 559, Pages: 156-165 |
| ISSN: | 1873-7544 |
| DOI: | 10.1016/j.neuroscience.2024.09.006 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.neuroscience.2024.09.006 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0306452224004512 
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| Author Notes: | Veronika Pohořalá, Martin Kuchař, Rainer Spanagel, Rick E. Bernardi |
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| 245 | 1 | 0 | |a Psilocybin administered following extinction sessions does not affect subsequent cocaine cue reinstatement in male and female rats and mice |c Veronika Pohořalá, Martin Kuchař, Rainer Spanagel, Rick E. Bernardi |
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| 520 | |a There are currently no pharmacological treatments for cocaine use disorder. Recently there has been a great deal of interest in the potential of psychedelic drugs such as psilocybin to treat psychiatric disorders. Human studies have indicated that a single administration of psilocybin can have long-lasting effects. Few preclinical studies have examined a role for psilocybin in addiction models. The goal of the current study was to determine whether psilocybin would enhance extinction following cocaine self-administration in male and female mice and rats and thus result in an attenuation of cue-induced drug-seeking. In experiments in mice, 16 female and 19 male mice underwent 8d of cocaine self-administration (0.5 mg/kg/infusion) and extinction training. Immediately following extinction trials, mice were injected with vehicle or 1.0 mg/kg psilocybin. Following the conclusion of extinction training, mice were tested for cue-induced reinstatement. In experiments in rats, 24 female and 23 male rats underwent 15d of cocaine self-administration (0.8 mg/kg/infusion) and extinction training. Immediately following extinction trials, rats were injected with vehicle, 1.0 mg/kg psilocybin, or 2.5 mg/kg psilocybin. Following the conclusion of extinction training, rats were tested for cue-induced reinstatement. Psilocybin administered following extinction trials had no effect, as both female and male mice and rats demonstrated significant cue-induced reinstatement. These data suggest that psilocybin is ineffective at altering cocaine-seeking behavior in the paradigm and doses used in the current study. It remains to be seen whether treatment with psilocybin under different conditions may be useful in the long-standing goal of finding pharmacotherapies to treat CUD. | ||
| 650 | 4 | |a Addiction | |
| 650 | 4 | |a Cocaine self-administration | |
| 650 | 4 | |a Mice | |
| 650 | 4 | |a Psilocybin | |
| 650 | 4 | |a Rats | |
| 650 | 4 | |a Reinstatement | |
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