Pharmacological enhancement of mGluR5 facilitates contextual fear memory extinction.

Pharmacological enhancement of mGluR5 facilitates contextual fear memory extinction.
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DOI:
10.1101/lm.035857.114
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发表时间:
2014-12
期刊:
Learning & memory (Cold Spring Harbor, N.Y.)
影响因子:
--
通讯作者:
Wang H
Wang H
中科院分区:
其他
文献类型:
--
作者:
Sethna F;Wang H

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行为暴露疗法涉及消除先前获得的恐惧,已被用于治疗与焦虑相关的症状,如创伤后应激障碍。据推测,促消退药物治疗可能会提高暴露疗法的疗效。全身给予代谢性谷氨酸受体5 (mGluR5)阳性变构调剂3-氰- n -(1,3-二苯基- 1h -吡唑-5-基)苯甲酰胺(CDPPB)有助于情境恐惧记忆的消退。CDPPB对初始恐惧记忆的形成也有促进作用,但对记忆提取没有影响。我们的数据表明,mGluR5的正调控可能提供了一种新的方法,通过促进消退来增强暴露治疗,而不会对记忆过程的其他方面产生不利影响。
Behavioral exposure therapy, which involves extinction of the previously acquired fear, has been used to treat anxiety-related symptoms such as post-traumatic stress disorder. It has been hypothesized that proextinction pharmacotherapeutics may enhance the efficacy of exposure therapy. Systemic administration of the metabotropic glutamate receptor 5 (mGluR5)-positive allosteric modulator 3-cyano-N-(1,3-diphenyl-1H-pyrazol-5-yl)benzamide (CDPPB) facilitated the extinction of contextual fear memory. Notably, CDPPB also enhanced the initial fear memory formation, and had no effect on memory retrieval. Our data suggest that positive regulation of mGluR5 may offer a new method to enhance exposure therapy through facilitating extinction without adversely affecting other aspects of memory process.
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