PMID- 25591475 OWN - NLM STAT- MEDLINE DCOM- 20150921 LR - 20150209 IS - 1872-7549 (Electronic) IS - 0166-4328 (Linking) VI - 282 DP - 2015 Apr 1 TI - Ketamine administration during the second postnatal week induces enduring schizophrenia-like behavioral symptoms and reduces parvalbumin expression in the medial prefrontal cortex of adult mice. PG - 165-75 LID - S0166-4328(15)00014-5 [pii] LID - 10.1016/j.bbr.2015.01.010 [doi] AB - Dysfunctions in the GABAergic system are considered a core feature of schizophrenia. Pharmacological blockade of NMDA receptors (NMDAR), or their genetic ablation in parvalbumin (PV)-expressing GABAergic interneurons can induce schizophrenia-like behavior in animals. NMDAR-mediated currents shape the maturation of GABAergic interneurons during a critical period of development, making transient blockade of NMDARs during this period an attractive model for the developmental changes that occur in the course of schizophrenia's pathophysiology. Here, we examined whether developmental administration of the non-competitive NMDAR antagonist ketamine results in persistent deficits in PFC-dependent behaviors in adult animals. Mice received injections of ketamine (30mg/kg) on postnatal days (PND) 7, 9 and 11, and then tested on a battery of behavioral experiments aimed to mimic major symptoms of schizophrenia in adulthood (between PND 90 and 120). Ketamine treatment reduced the number of cells that expressed PV in the PFC by approximately 60% as previously described. Ketamine affected performance in an attentional set-shifting task, impairing the ability of the animals to perform an extradimensional shift to acquire a new strategy. Ketamine-treated animals showed deficits in latent inhibition, novel-object recognition and social novelty detection compared to their SAL-treated littermates. These deficits were not a result of generalized anxiety, as both groups performed comparably on an elevated plus maze. Ketamine treatment did not cause changes in amphetamine-induced hyperlocomotion that are often taken as measures for the positive-like symptoms of the disorder. Thus, ketamine administration during development appears to be a useful model for inducing cognitive and negative symptoms of schizophrenia. CI - Copyright (c) 2015 Elsevier B.V. All rights reserved. FAU - Jeevakumar, Vivek AU - Jeevakumar V AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. FAU - Driskill, Christopher AU - Driskill C AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. FAU - Paine, Alyssa AU - Paine A AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. FAU - Sobhanian, Millad AU - Sobhanian M AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. FAU - Vakil, Haris AU - Vakil H AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. FAU - Morris, Brett AU - Morris B AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. FAU - Ramos, Jeremiah AU - Ramos J AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. FAU - Kroener, Sven AU - Kroener S AD - School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. Electronic address: kroener@utdallas.edu. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150113 PL - Netherlands TA - Behav Brain Res JT - Behavioural brain research JID - 8004872 RN - 0 (Excitatory Amino Acid Antagonists) RN - 0 (Parvalbumins) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 690G0D6V8H (Ketamine) SB - IM MH - Animals MH - Behavior, Animal/drug effects MH - Behavioral Symptoms/chemically induced/*psychology MH - Disease Models, Animal MH - Excitatory Amino Acid Antagonists/administration & dosage/*pharmacology MH - Ketamine/administration & dosage/*pharmacology MH - Male MH - Mice MH - Mice, Inbred Strains MH - Parvalbumins/*metabolism MH - Prefrontal Cortex/drug effects/*metabolism MH - Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors MH - Schizophrenia/chemically induced/*metabolism OTO - NOTNLM OT - Ketamine OT - NMDAR OT - Parvalbumin OT - Perinatal OT - Prefrontal cortex OT - Schizophrenia EDAT- 2015/01/17 06:00 MHDA- 2015/09/22 06:00 CRDT- 2015/01/17 06:00 PHST- 2014/08/07 00:00 [received] PHST- 2014/12/24 00:00 [revised] PHST- 2015/01/06 00:00 [accepted] PHST- 2015/01/17 06:00 [entrez] PHST- 2015/01/17 06:00 [pubmed] PHST- 2015/09/22 06:00 [medline] AID - S0166-4328(15)00014-5 [pii] AID - 10.1016/j.bbr.2015.01.010 [doi] PST - ppublish SO - Behav Brain Res. 2015 Apr 1;282:165-75. doi: 10.1016/j.bbr.2015.01.010. Epub 2015 Jan 13.