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Efficacy of N‐acetylcysteine in the prevention of alcohol relapse‐like drinking: Study in long‐term ethanol‐experienced male rats
Journal of Neuroscience Research ( IF 2.9 ) Pub Date : 2020-10-16 , DOI: 10.1002/jnr.24736
María José Cano-Cebrián 1 , Sandra Fernández-Rodríguez 1 , Lucia Hipólito 1 , Luis Granero 1 , Ana Polache 1 , Teodoro Zornoza 1
Affiliation  

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.

中文翻译:

N-乙酰半胱氨酸预防酒精类复发性饮酒的功效:长期服用酒精的雄性大鼠的研究

酒精使用障碍是一种慢性且高度复发的疾病,因此即使在长期戒酒后,酗酒患者仍有很高的吸毒再犯率。文献指出 N-乙酰半胱氨酸 (NAC) 在治疗几种物质使用障碍方面的潜在用途,可能是因为它能够恢复因成瘾而中断的谷氨酸系统的脑内稳态。然而,关于酒精的证据很少。本研究的目的是使用酒精剥夺效应(ADE)模型在长期经验丰富的大鼠中探索 NAC 的潜在抗复发功效。在雄性 Wistar 大鼠中进行了两项实验:(a) 测试 NAC 预防复发的功效和 (b) 区分 NAC 的最佳给药方案(间歇性与连续性)。在第一个实验中,动物被植入微型渗透泵,在 14 天内输送 0 或 1 毫克/小时的 NAC。在第二个实验中,大鼠通过皮下注射每天一次接受 0、60 或 100 mg/kg。在两个实验中都评估了预防 ADE 的功效。通过连续输注或间歇注射方案皮下给药 NAC 能够阻断 ADE。使用 60 mg/kg NAC 剂量后获得最佳结果。我们的研究结果支持这样的假设,即 NAC 可能是治疗酒精复发的一种有价值的疗法。无论是通过连续输注还是通过间歇注射方案,都能够阻断 ADE。使用 60 mg/kg NAC 剂量后获得最佳结果。我们的研究结果支持这样的假设,即 NAC 可能是治疗酒精复发的一种有价值的疗法。无论是通过连续输注还是通过间歇注射方案,都能够阻断 ADE。使用 60 mg/kg NAC 剂量后获得最佳结果。我们的研究结果支持这样的假设,即 NAC 可能是治疗酒精复发的一种有价值的疗法。
更新日期:2020-12-20
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