PMID- 33595955 OWN - NLM STAT- MEDLINE DCOM- 20220124 LR - 20230910 IS - 1473-5849 (Electronic) IS - 0955-8810 (Print) IS - 0955-8810 (Linking) VI - 32 IP - 4 DP - 2021 Jun 1 TI - Subanesthetic ketamine with an AMPAkine attenuates motor impulsivity in rats. PG - 335-344 LID - 10.1097/FBP.0000000000000623 [doi] AB - The concept of 'impulse control' has its roots in early psychiatry and today has progressed into a well-described, although poorly understood, multidimensional endophenotype underlying many neuropsychiatric disorders (e.g., attention deficit hyperactivity disorder, schizophrenia, substance use disorders). There is mounting evidence suggesting that the cognitive and/or behavioral dimensions underlying impulsivity are driven by dysfunctional glutamate (Glu) neurotransmission via targeted ionotropic Glu receptor (GluR) [e.g., N-methyl-D-aspartate receptor (NMDAR), alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR)] mechanisms and associated synaptic alterations within key brain nodes. Ketamine, a noncompetitive NMDAR antagonist and FDA-approved for treatment-resistant depression, induces a 'glutamate burst' that drives resculpting of the synaptic milieu, which lasts for several days to a week. Thus, we hypothesized that single and repeated treatment with a subanesthetic ketamine dose would normalize motor impulsivity. Next, we hypothesized that AMPAR positive allosteric modulation, alone or in combination with ketamine, would attenuate impulsivity and provide insight into the mechanisms underlying GluR dysfunction relevant to motor impulsivity. To measure motor impulsivity, outbred male Sprague-Dawley rats were trained on the one-choice serial reaction time task. Rats pretreated with single or repeated (3 days) administration of ketamine (10 mg/kg; i.p.; 24-h pretreatment) or with the AMPAkine HJC0122 (1 or 10 mg/kg; i.p.; 30-min pretreatment) exhibited lower levels of motor impulsivity vs. control. Combination of single or repeated ketamine plus HJC0122 also attenuated motor impulsivity vs. control. We conclude that ligands designed to promote GluR signaling represent an effective pharmacological approach to normalize impulsivity and subsequently, neuropsychiatric disorders marked by aberrant impulse control. CI - Copyright (c) 2021 Wolters Kluwer Health, Inc. All rights reserved. FAU - Davis-Reyes, Brionna D AU - Davis-Reyes BD AD - Center for Addiction Research and Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, Texas, USA. FAU - Smith, Ashley E AU - Smith AE FAU - Xu, Jimin AU - Xu J FAU - Cunningham, Kathryn A AU - Cunningham KA FAU - Zhou, Jia AU - Zhou J FAU - Anastasio, Noelle C AU - Anastasio NC LA - eng GR - R00 DA033374/DA/NIDA NIH HHS/United States GR - T32 DA007287/DA/NIDA NIH HHS/United States GR - U18 DA052545/DA/NIDA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PL - England TA - Behav Pharmacol JT - Behavioural pharmacology JID - 9013016 RN - 0 (Antidepressive Agents) RN - 0 (Nootropic Agents) RN - 0 (Pyrrolidinones) RN - 0 (Receptors, Glutamate) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 0 (alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid subtype glutamate receptor, human) RN - 3KX376GY7L (Glutamic Acid) RN - 5L16LKN964 (aniracetam) RN - 690G0D6V8H (Ketamine) RN - ZH516LNZ10 (Piracetam) SB - IM MH - Animals MH - Antidepressive Agents/pharmacology MH - Cognition/drug effects/physiology MH - Dose-Response Relationship, Drug MH - Glutamic Acid/*metabolism MH - *Impulsive Behavior/drug effects/physiology MH - Ketamine/*pharmacology MH - *Mental Disorders/drug therapy/metabolism/psychology MH - Neuronal Plasticity/drug effects MH - Nootropic Agents/pharmacology MH - Piracetam/*pharmacology MH - Pyrrolidinones/*pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Receptors, Glutamate/*metabolism MH - *Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors/metabolism MH - Synaptic Transmission/drug effects/physiology PMC - PMC8119302 MID - NIHMS1660906 EDAT- 2021/02/18 06:00 MHDA- 2022/01/27 06:00 PMCR- 2022/06/01 CRDT- 2021/02/17 14:09 PHST- 2021/02/18 06:00 [pubmed] PHST- 2022/01/27 06:00 [medline] PHST- 2021/02/17 14:09 [entrez] PHST- 2022/06/01 00:00 [pmc-release] AID - 00008877-202106000-00008 [pii] AID - 10.1097/FBP.0000000000000623 [doi] PST - ppublish SO - Behav Pharmacol. 2021 Jun 1;32(4):335-344. doi: 10.1097/FBP.0000000000000623.