PMID- 21645591 OWN - NLM STAT- MEDLINE DCOM- 20120118 LR - 20211020 IS - 1873-7544 (Electronic) IS - 0306-4522 (Print) IS - 0306-4522 (Linking) VI - 192 DP - 2011 Sep 29 TI - Positive emotional learning is regulated in the medial prefrontal cortex by GluN2B-containing NMDA receptors. PG - 515-23 LID - 10.1016/j.neuroscience.2011.05.001 [doi] AB - In rats, hedonic ultrasonic vocalizations (USVs) is a validated model of positive affect and is best elicited by rough-and-tumble play. Here we report that modulation of GluN2B-containing NMDA receptors (NMDAR) in the medial prefrontal cortex (MPFC) is involved in positive emotional learning. Rough and tumble play increased both GluN1 and GluN2B NMDAR subunit mRNA and protein levels in the frontal cortex. GLYX-13, a GluN2B-preferring, NMDAR glycine-site partial agonist (1 mg/kg, i.v.) significantly increased positive emotional learning whereas the GluN2B receptor-specific antagonist, ifenprodil (10 mg/kg, i.p.), inhibited positive emotional learning. Animals selectively bred for low rates of hedonic USVs were returned to wild-type levels of positive emotional learning following GLYX-13 treatment. MPFC microinjections of GLYX-13 (0.1-10 mug/side) significantly increased rates of positive emotional learning. Thus GluN2B-containing NMDARs may be involved in positive emotional learning in the MPFC by similar mechanisms as spatial/temporal learning in the hippocampus. CI - Copyright (c) 2011 IBRO. Published by Elsevier Ltd. All rights reserved. FAU - Burgdorf, J AU - Burgdorf J AD - Falk Center for Molecular Therapeutics, Department of Biomedical Engineering, Northwestern University, Evanston, IL 60201, USA. FAU - Kroes, R A AU - Kroes RA FAU - Weiss, C AU - Weiss C FAU - Oh, M M AU - Oh MM FAU - Disterhoft, J F AU - Disterhoft JF FAU - Brudzynski, S M AU - Brudzynski SM FAU - Panksepp, J AU - Panksepp J FAU - Moskal, J R AU - Moskal JR LA - eng GR - R01 NS059879/NS/NINDS NIH HHS/United States GR - R01 AG017139/AG/NIA NIH HHS/United States GR - R01 MH047340/MH/NIMH NIH HHS/United States GR - R01NS059879/NS/NINDS NIH HHS/United States GR - R37 AG008796/AG/NIA NIH HHS/United States GR - R01MH047340/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20110607 PL - United States TA - Neuroscience JT - Neuroscience JID - 7605074 RN - 0 (Oligopeptides) RN - 0 (Protein Subunits) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 6A1X56B95E (GLYX-13 peptide) SB - IM MH - Animals MH - Blotting, Western MH - Emotions/*physiology MH - Learning/*physiology MH - Male MH - Oligonucleotide Array Sequence Analysis MH - Oligopeptides/pharmacology MH - Prefrontal Cortex/*metabolism MH - Protein Subunits/metabolism MH - Rats MH - Rats, Sprague-Dawley MH - Real-Time Polymerase Chain Reaction MH - Receptors, N-Methyl-D-Aspartate/*metabolism PMC - PMC3166413 MID - NIHMS294384 EDAT- 2011/06/08 06:00 MHDA- 2012/01/19 06:00 PMCR- 2011/09/29 CRDT- 2011/06/08 06:00 PHST- 2011/03/11 00:00 [received] PHST- 2011/04/11 00:00 [revised] PHST- 2011/05/01 00:00 [accepted] PHST- 2011/06/08 06:00 [entrez] PHST- 2011/06/08 06:00 [pubmed] PHST- 2012/01/19 06:00 [medline] PHST- 2011/09/29 00:00 [pmc-release] AID - S0306-4522(11)00523-9 [pii] AID - 10.1016/j.neuroscience.2011.05.001 [doi] PST - ppublish SO - Neuroscience. 2011 Sep 29;192:515-23. doi: 10.1016/j.neuroscience.2011.05.001. Epub 2011 Jun 7.