PMID- 22454660 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20120823 LR - 20211021 IS - 1741-4288 (Electronic) IS - 1741-427X (Print) IS - 1741-427X (Linking) VI - 2012 DP - 2012 TI - Electroacupuncture suppresses discrete cue-evoked heroin-seeking and fos protein expression in the nucleus accumbens core in rats. PG - 286404 LID - 10.1155/2012/286404 [doi] LID - 286404 AB - Relapse to drug seeking was studied using a rodent model of reinstatement induced by exposure to drug-related cues. Here, we used intravenous drug self-administration procedures in rats to further investigate the beneficial effects of electroacupuncture (EA) on heroin-seeking behavior in a reinstatement model of relapse. We trained Sprague-Dawley rats to nose-poke for i.v. heroin either daily for 4 h or 25 infusions for 14 consecutive days. Then the rats were abstinent from heroin for two weeks. 2 Hz EA stimulation was conducted once daily for 14 days during heroin abstinence. We tested these animals for contextual and discrete cue-induced reinstatement of active responses. We also applied immunohistochemistry to detect Fos-positive nuclei in the nucleus accumbens (NACc) core and shell after reinstatement test. We found that active responses elicited by both contextual cues and discrete cues were high in the rats trained with heroin than in saline controls. EA treatment significantly reduced active responses elicited by discrete cues. EA stimulation attenuated Fos expression in the core but not the shell of the NACc. Altogether, these results highlight the therapeutic benefit of EA in preventing relapse to drug addiction. FAU - Liu, Sheng AU - Liu S AD - Ningbo Addiction Research and Treatment Center, School of Medicine, Ningbo University, Ningbo 315010, China. FAU - Zhu, Fenglei AU - Zhu F FAU - Lai, Miaojun AU - Lai M FAU - Sun, Limin AU - Sun L FAU - Liu, Yijun AU - Liu Y FAU - Zhou, Wenhua AU - Zhou W LA - eng PT - Journal Article DEP - 20120214 PL - United States TA - Evid Based Complement Alternat Med JT - Evidence-based complementary and alternative medicine : eCAM JID - 101215021 PMC - PMC3290998 EDAT- 2012/03/29 06:00 MHDA- 2012/03/29 06:01 PMCR- 2012/02/14 CRDT- 2012/03/29 06:00 PHST- 2011/05/23 00:00 [received] PHST- 2011/09/08 00:00 [revised] PHST- 2011/10/26 00:00 [accepted] PHST- 2012/03/29 06:00 [entrez] PHST- 2012/03/29 06:00 [pubmed] PHST- 2012/03/29 06:01 [medline] PHST- 2012/02/14 00:00 [pmc-release] AID - 10.1155/2012/286404 [doi] PST - ppublish SO - Evid Based Complement Alternat Med. 2012;2012:286404. doi: 10.1155/2012/286404. Epub 2012 Feb 14.