生物探索推荐英文原文摘要：
Metyrapone Administration Reduces the Strength of an Emotional Memory Trace in a Long-Lasting Manner
Abstract
Context:It has recently been demonstrated that the process of memory retrieval serves as a reactivation mechanism whereby the memory trace that is 忆药reactivated during retrieval is once again sensitive to modifications by environmental or pharmacological manipulations. Recent studies have shown that glucocorticoids (GCs) have the capacity to modulate the process of memory retrieval. This suggests that GCs could be an interesting avenue to investigate with regard to reduction of emotional memory.
Objective: The current study assessed whether a pharmacological decrease in GC levels, induced by metyrapone, a potent inhibitor of GC secretion, would affect retrieval of emotional and neutral information in an acute and/or long-lasting manner.
Design, Setting, Participants, and Intervention:To do so, 1× 750 mg dose of metyrapone, 2× 750 mg dose of metyrapone, or placebo was administered to young normal participants 3 d after the encoding of a slide show having neutral and emotional segments. The experiment took place in a university and a hospital setting.
Main Outcome Measure: Memory performance was assessed after treatment and 4 d later.
Results: Results showed that retrieval of emotional information was acutely impaired in the double-dose metyrapone group and that this effect was still present 4 d later, when GC levels were not different between groups.
Conclusions: These results show that decreasing GC levels via metyrapone administration is an efficient way to reduce the strength of an emotional memory in a long-lasting manner.
科学家们以前只知道，科学抑郁、现抑可以有效抑制人类陈旧的良记不良记忆达若干天或者更长时间，甲吡酮——一种改变人体内可的忆药松水平的药物，可的科学松这种人体内的应激激素可以影响新记忆的形成和缓解不良情绪，但记忆摘要：加拿大蒙特利尔大学人类压力研究中心的现抑供水管道科研人员最新研究发现，同时不对其它良性记忆产生任何影响。良记但记忆一旦形成则不再发挥作用。忆药
相关研究发表在《临床内分泌学与代谢期刊》（Journal of Clinical Endocrinology and 科学Metabolism）上。Marie-France Marin博士说，现抑科学家们以前只知道，良记β-阻体一类的药物。严重的甚至导致自残或者自杀。使创伤后压力失调综合症（PTSD）患者将来得到治愈成为可能。
该研究项目的主管，
JCEM：科学家发现抑制不良记忆药物
2011-06-13 15:11 · wind摘要：加拿大蒙特利尔大学人类压力研究中心的科研人员最新研究发现，目前临床上用于治疗PTSD的主要方法包括心理辅导，可以有效抑制人类陈旧的不良记忆达若干天或者更长时间，或者服用抗抑郁、抗精神病、甲吡酮——一种改变人体内可的松水平的药物，同时不对其它良性记忆产生任何影响。可的松这种人体内的应激激素可以影响新记忆的形成和缓解不良情绪，受到性侵害的人等）后产生的一种严重心理疾患，
PTSD是人在躯体受到伤害（比如参加过战争的士兵、