论文标题:Ketamine can reduce harmful drinking by pharmacologically rewriting drinking memories
期刊:Nature Communications
作者:Ravi K. Das, Grace Gale et.al
发表时间:2019/11/26
数字识别码:10.1038/s41467-019-13162-w
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在提取酒精-奖赏记忆后注射单剂量氯胺酮可以破坏这些记忆的再巩固,从而降低饮酒水平。这项由90名受试者参与的研究Ketamine can reduce harmful drinking by pharmacologically rewriting drinking memories本周发表在《自然-通讯》上。
摘要:Maladaptive reward memories (MRMs) are involved in the development and maintenance of acquired overconsumption disorders, such as harmful alcohol and drug use. The process of memory reconsolidation - where stored memories become briefly labile upon retrieval - may offer a means to disrupt MRMs and prevent relapse. However, reliable means for pharmacologically weakening MRMs in humans remain elusive. Here we demonstrate that the N-methyl D-aspartate (NMDA) antagonist ketamine is able to disrupt MRMs in hazardous drinkers when administered immediately after their retrieval. MRM retrieval + ketamine (RET + KET) effectively reduced the reinforcing effects of alcohol and long-term drinking levels, compared to ketamine or retrieval alone. Blood concentrations of ketamine and its metabolites during the critical ‘reconsolidation window’ predicted beneficial changes only following MRM reactivation. Pharmacological reconsolidation interference may provide a means to rapidly rewrite maladaptive memory and should be further pursued in alcohol and drug use disorders.