PMID- 25554623 OWN - NLM STAT- MEDLINE DCOM- 20150814 LR - 20160108 IS - 1879-1379 (Electronic) IS - 0022-3956 (Linking) VI - 61 DP - 2015 Feb TI - Behavioral and cognitive effects of the N-methyl-D-aspartate receptor co-agonist D-serine in healthy humans: initial findings. PG - 188-95 LID - S0022-3956(14)00348-3 [pii] LID - 10.1016/j.jpsychires.2014.12.007 [doi] AB - The efficacy of compounds having agonistic activity at the glycine site associated with the N-methyl-D-aspartate receptor (NMDAR) is presently assessed in psychiatric disorders. In contrast to NMDAR antagonists, the neuropsychiatric effects of NMDAR agonists in the healthy human organism are not known. We studied neuropsychiatric and neurochemical effects of the NMDAR-glycine site obligatory co-agonist d-serine (DSR) in healthy subjects using a randomized, controlled crossover challenge design including a baseline assessment day and two DSR/placebo administration days. Thirty-five subjects aged 23-29 years participated in the study and received a 2.1 g orally administered DSR dose. The main outcome measures were the changes in scores of mood-related Visual Analogue Scale (VAS), Continuous Performance Test-Identical Pairs (CPT-IP), and Rey Auditory Verbal Learning Test (RAVLT). DSR acute administration: (1) was well tolerated and resulted at 2 h in >/= 200 times increase in DSR serum levels; (2) elicited reduced VAS-measured depression and anxiety feelings; (3) improved attention and vigilance as measured by CPT-IP D-prime score; (4) preferentially improved performance in RAVLT list 7 reflecting ability to retain information over interference; (5) had significant but nonspecific effects on Category Fluency and Benton Visual Retention tests; and (6) did not affect glycine and glutamate serum levels. These data indicate that in healthy subjects, DSR reduces subjective feelings of sadness and anxiety and has procognitive effects that are overall opposed to the known effects of NMDAR antagonists. The findings are relevant to translational research of NMDAR function and the development of NMDAR-glycine site treatments for specific psychiatric entities. ClinicalTrials.gov: Behavioral and Cognitive Effects of the N-methyl-D-aspartate Receptor (NMDAR) Co-agonist D-serine in Healthy Humans; http://www.clinicaltrials.gov/ct2/show/NCT02051426?term=NCT02051426&rank=1; NCT02051426. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Levin, Raz AU - Levin R AD - Research and Psychiatry Departments, Ezrath Nashim-Herzog Memorial Hospital, Jerusalem, Israel. FAU - Dor-Abarbanel, Adi Ein AU - Dor-Abarbanel AE AD - Hadassah Medical School, Hebrew University, Jerusalem, Israel. FAU - Edelman, Shany AU - Edelman S AD - Hadassah Medical School, Hebrew University, Jerusalem, Israel. FAU - Durrant, Andrea R AU - Durrant AR AD - Research and Psychiatry Departments, Ezrath Nashim-Herzog Memorial Hospital, Jerusalem, Israel. FAU - Hashimoto, Kenji AU - Hashimoto K AD - Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan. FAU - Javitt, Daniel C AU - Javitt DC AD - Nathan S. Kline Institute for Psychiatric Research and Columbia University, NY, USA. FAU - Heresco-Levy, Uriel AU - Heresco-Levy U AD - Research and Psychiatry Departments, Ezrath Nashim-Herzog Memorial Hospital, Jerusalem, Israel; Hadassah Medical School, Hebrew University, Jerusalem, Israel. Electronic address: urielh@ekmd.huji.ac.il. LA - eng SI - ClinicalTrials.gov/NCT02051426 PT - Journal Article PT - Randomized Controlled Trial DEP - 20141224 PL - England TA - J Psychiatr Res JT - Journal of psychiatric research JID - 0376331 RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 3KX376GY7L (Glutamic Acid) RN - 452VLY9402 (Serine) RN - TE7660XO1C (Glycine) SB - IM MH - Adult MH - Affect/*drug effects MH - Anxiety/*drug therapy/psychology MH - Cognition/*drug effects MH - Cross-Over Studies MH - Female MH - Glutamic Acid/blood MH - Glycine/blood MH - Humans MH - Male MH - Neuropsychological Tests MH - Receptors, N-Methyl-D-Aspartate/*agonists MH - Serine/administration & dosage/*pharmacology MH - Treatment Outcome MH - Verbal Learning/drug effects MH - Young Adult OTO - NOTNLM OT - Behavior OT - Cognition OT - N-methyl-d-aspartate receptor OT - d-serine EDAT- 2015/01/03 06:00 MHDA- 2015/08/15 06:00 CRDT- 2015/01/03 06:00 PHST- 2014/09/04 00:00 [received] PHST- 2014/11/30 00:00 [revised] PHST- 2014/12/12 00:00 [accepted] PHST- 2015/01/03 06:00 [entrez] PHST- 2015/01/03 06:00 [pubmed] PHST- 2015/08/15 06:00 [medline] AID - S0022-3956(14)00348-3 [pii] AID - 10.1016/j.jpsychires.2014.12.007 [doi] PST - ppublish SO - J Psychiatr Res. 2015 Feb;61:188-95. doi: 10.1016/j.jpsychires.2014.12.007. Epub 2014 Dec 24.