PMID- 26567727 OWN - NLM STAT- MEDLINE DCOM- 20160818 LR - 20181113 IS - 1745-7254 (Electronic) IS - 1671-4083 (Print) IS - 1671-4083 (Linking) VI - 36 IP - 12 DP - 2015 Dec TI - Formation of aversive memories associated with conditioned drug withdrawal requires BDNF expression in the amygdala in acute morphine-dependent rats. PG - 1437-43 LID - 10.1038/aps.2015.94 [doi] AB - AIM: Brain-derived neurotrophic factor (BDNF) plays an important role in learning and memory in multiple brain areas. In the present study, we investigated the roles of BDNF in aversive memories associated with conditioned drug withdrawal in acute morphine-dependent rats. METHODS: Conditioned place aversion (CPA) was induced in male SD rats exposed to a single dose of morphine (10 mg/kg, sc) followed by naloxone (0.3 mg/kg, sc). In some rats, BDNF receptor antagonist K252a (8.5 ng per side) or BDNF scavenger TrkB-FC (0.65 mug per side) was bilaterally microinjected into amygdala before naloxone injection. BDNF mRNA and protein expression levels in amygdala were detected after the behavior testing. RESULTS: CPA behavior was induced in rats by the naloxone-precipitated morphine withdrawal, which was accompanied by significantly increased levels of BDNF mRNA and protein in the amygdala. Bilateral microinjection of TrkB-FC or K252a into the amygdala completely blocked CPA behavior in the rats. CONCLUSION: Formation of aversive memories associated with conditioned drug withdrawal in acute morphine-dependent rats requires BDNF expression in the amygdala. FAU - Ju, Yun-yue AU - Ju YY AD - State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. FAU - Long, Jian-dong AU - Long JD AD - State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. FAU - Liu, Yao AU - Liu Y AD - State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. FAU - Liu, Jing-gen AU - Liu JG AD - State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151116 PL - United States TA - Acta Pharmacol Sin JT - Acta pharmacologica Sinica JID - 100956087 RN - 0 (Narcotic Antagonists) RN - 0 (Narcotics) RN - 0 (RNA, Messenger) RN - 36B82AMQ7N (Naloxone) RN - 76I7G6D29C (Morphine) RN - EC 2.7.10.1 (Receptor, trkB) SB - IM MH - Amygdala/*drug effects/metabolism/physiopathology MH - Animals MH - Aversive Therapy MH - Male MH - Morphine/adverse effects MH - Morphine Dependence/*genetics/physiopathology/*therapy MH - Naloxone/*therapeutic use MH - Narcotic Antagonists/*therapeutic use MH - Narcotics/adverse effects MH - RNA, Messenger/genetics MH - Rats, Sprague-Dawley MH - Receptor, trkB/*genetics MH - Substance Withdrawal Syndrome/*genetics/physiopathology MH - Up-Regulation PMC - PMC4816238 EDAT- 2015/11/17 06:00 MHDA- 2016/08/19 06:00 PMCR- 2015/12/01 CRDT- 2015/11/17 06:00 PHST- 2015/04/27 00:00 [received] PHST- 2015/08/14 00:00 [accepted] PHST- 2015/11/17 06:00 [entrez] PHST- 2015/11/17 06:00 [pubmed] PHST- 2016/08/19 06:00 [medline] PHST- 2015/12/01 00:00 [pmc-release] AID - aps201594 [pii] AID - 10.1038/aps.2015.94 [doi] PST - ppublish SO - Acta Pharmacol Sin. 2015 Dec;36(12):1437-43. doi: 10.1038/aps.2015.94. Epub 2015 Nov 16.