期刊
JOURNAL OF NEUROSCIENCE RESEARCH
卷 99, 期 2, 页码 638-648出版社
WILEY
DOI: 10.1002/jnr.24736
关键词
alcohol deprivation effect; alcohol use disorders; cue-induced relapse; ethanol relapse prevention; glutamate neurotransmission; N-acetylcysteine; pharmacotherapy
资金
- Generalitat Valenciana [GVA2016-096]
The study found that NAC administered subcutaneously, either through continuous infusion or intermittent injections, effectively blocked the alcohol deprivation effect (ADE) in long-term experienced rats, with the best results obtained from the 60 mg/kg dose. These findings suggest that NAC may be a valuable therapy in managing alcohol relapse.
Alcohol use disorders are chronic and highly relapsing disorders, thus alcoholic patients have a high rate of recidivism for drug use even after long periods of abstinence. The literature points to the potential usefulness of N-acetylcysteine (NAC) in the management of several substance use disorders probably due to its capacity to restore brain homeostasis of the glutamate system disrupted in addiction. However, there is little evidence in the case of alcohol. The aim of this study was to explore the potential anti-relapse efficacy of NAC using the alcohol deprivation effect (ADE) model in long-term experienced rats. Two experiments were performed in male Wistar rats to: (a) test the efficacy of NAC to prevent relapse and (b) discriminate the best administration schedule (intermittent vs. continuous) for NAC. In the first experiment, animals were implanted with mini-osmotic pumps delivering 0 or 1 mg/hr NAC during 14 days. In a second experiment, rats received 0, 60, or 100 mg/kg once daily by subcutaneous injection. The efficacy to prevent ADE was evaluated in both experiments. NAC subcutaneously administered, either by continuous infusion or by intermittent injections regimen, is able to block the ADE. The best results were obtained after using 60 mg/kg NAC dose. Our findings support the hypothesis that NAC may represent a valuable therapy in the management of alcohol relapse.
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