Galnon facilitates extinction of morphine-conditioned place preference but also potentiates the consolidation process.
Galnon facilitates extinction of morphine-conditioned place preference but also potentiates the consolidation process.
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Galnon 促进吗啡条件下的位置偏好的消除,同时也增强了巩固过程
DOI:
10.1371/journal.pone.0076395
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Wang Z
中科院分区:
文献类型:
--
作者:
Zhao X;Yun K;Seese RR;Wang Z
Learning and memory systems are intimately involved in drug addiction. Previous studies suggest that galanin, a neuropeptide that binds G-protein coupled receptors, plays essential roles in the encoding of memory. In the present study, we tested the function of galnon, a galanin receptor 1 and 2 agonist, in reward-associated memory, using conditioned place preference (CPP), a widely used paradigm in drug-associated memory. Either before or following CPP-inducing morphine administration, galnon was injected at four different time points to test the effects of galanin activation on different reward-associated memory processes: 15 min before CPP training (acquisition), immediately after CPP training (consolidation), 15 min before the post-conditioning test (retrieval), and multiple injection after post-tests (reconsolidation and extinction). Galnon enhanced consolidation and extinction processes of morphine-induced CPP memory, but the compound had no effect on acquisition, retrieval, or reconsolidation processes. Our findings demonstrate that a galanin receptor 1 and 2 agonist, galnon, may be used as a viable compound to treat drug addiction by facilitating memory extinction process.
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