PMID- 23541493 OWN - NLM STAT- MEDLINE DCOM- 20131226 LR - 20210223 IS - 1873-5177 (Electronic) IS - 0091-3057 (Linking) VI - 106 DP - 2013 May TI - Chronic co-administration of the cannabinoid receptor agonist WIN55,212-2 during puberty or adulthood reverses 3,4 methylenedioxymetamphetamine (MDMA)-induced deficits in recognition memory but not in effort-based decision making. PG - 91-100 LID - S0091-3057(13)00077-4 [pii] LID - 10.1016/j.pbb.2013.03.011 [doi] AB - Cannabis and 3,4 methylenedioxymetamphetamine (MDMA, "ecstasy") are the most frequently combined illegal drugs among young adults in western societies. This study examined the effects of chronic co-administration of the cannabinoid receptor agonist WIN55,212-2 (WIN) and MDMA on working memory and effort-based decision making in rats. Treatment consisted of MDMA (7.5 mg/kg), WIN (1.2 mg/kg), a combination of these substances (MDMA+WIN) or vehicle over a period of 25 days during puberty (PD40-65) or adulthood (PD80-105). Ten days after the last treatment, WIN reversed MDMA-induced working memory deficits in the object recognition test in animals treated during adulthood or puberty, but had no influence on impairment of adult rats in the effort-based T-maze task. No differences were observed between groups of pubertally treated rats in the decision making task. During a subsequent acute drug challenge MDMA and MDMA+WIN decreased high reward choices in both age groups, indicating MDMA-induced cost-aversive choice. Differential long-term interactions on the neuronal level in the hippocampus and MDMA-induced disturbances in cortico-limbic connections are suggested. CI - Copyright (c) 2013 Elsevier Inc. All rights reserved. FAU - Schulz, Sybille AU - Schulz S AD - Brain Research Institute, Department of Neuropharmacology, University of Bremen, 28359 Bremen, Germany. s.schulz@uni-bremen.de FAU - Becker, Thorsten AU - Becker T FAU - Nagel, Ulrich AU - Nagel U FAU - von Ameln-Mayerhofer, Andreas AU - von Ameln-Mayerhofer A FAU - Koch, Michael AU - Koch M LA - eng PT - Journal Article DEP - 20130327 PL - United States TA - Pharmacol Biochem Behav JT - Pharmacology, biochemistry, and behavior JID - 0367050 RN - 0 (Benzoxazines) RN - 0 (Morpholines) RN - 0 (Naphthalenes) RN - 5H31GI9502 ((3R)-((2,3-dihydro-5-methyl-3-((4-morpholinyl)methyl)pyrrolo-(1,2,3-de)-1,4-benzoxazin-6-yl)(1-naphthalenyl))methanone) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Animals MH - Benzoxazines/*administration & dosage/pharmacology MH - Decision Making/*drug effects MH - Male MH - Maze Learning MH - Memory/*drug effects MH - Morpholines/*administration & dosage/pharmacology MH - N-Methyl-3,4-methylenedioxyamphetamine/*pharmacology MH - Naphthalenes/*administration & dosage/pharmacology MH - Rats MH - Rats, Wistar MH - *Sexual Maturation EDAT- 2013/04/02 06:00 MHDA- 2013/12/27 06:00 CRDT- 2013/04/02 06:00 PHST- 2012/11/02 00:00 [received] PHST- 2013/03/15 00:00 [revised] PHST- 2013/03/19 00:00 [accepted] PHST- 2013/04/02 06:00 [entrez] PHST- 2013/04/02 06:00 [pubmed] PHST- 2013/12/27 06:00 [medline] AID - S0091-3057(13)00077-4 [pii] AID - 10.1016/j.pbb.2013.03.011 [doi] PST - ppublish SO - Pharmacol Biochem Behav. 2013 May;106:91-100. doi: 10.1016/j.pbb.2013.03.011. Epub 2013 Mar 27.