PMID- 20800616 OWN - NLM STAT- MEDLINE DCOM- 20110929 LR - 20211020 IS - 1872-9711 (Electronic) IS - 0161-813X (Print) IS - 0161-813X (Linking) VI - 31 IP - 6 DP - 2010 Dec TI - MDMA administration decreases serotonin but not N-acetylaspartate in the rat brain. PG - 654-61 LID - 10.1016/j.neuro.2010.08.005 [doi] AB - In animals, repeated administration of 3,4-methylenedioxymethamphetamine (MDMA) reduces markers of serotonergic activity and studies show similar serotonergic deficits in human MDMA users. Using proton-magnetic resonance spectroscopy ((1)H-MRS) at 11.7Tesla, we measured the metabolic neurochemical profile in intact, discrete tissue punches taken from prefrontal cortex, anterior striatum, and hippocampus of rats administered MDMA (5mg/kg IP, 4x q 2h) or saline and euthanized 7 days after the last injection. Monoamine content was measured with HPLC in contralateral punches from striatum and hippocampus to compare the MDMA-induced loss of 5HT innervation with constituents in the (1)H-MRS profile. When assessed 7 days after the last MDMA injection, levels of hippocampal and striatal serotonin (5HT) were significantly reduced, consistent with published animal studies. N-Acetylaspartate (NAA) levels were significantly increased in prefrontal cortex and not affected in anterior striatum or hippocampus; myo-inositol (INS) levels were increased in prefrontal cortex and hippocampus but not anterior striatum. Glutamate levels were increased in prefrontal cortex and decreased in hippocampus, while GABA levels were decreased only in hippocampus. The data suggest that NAA may not reliably reflect MDMA-induced 5HT neurotoxicity. However, the collective pattern of changes in 5HT, INS, glutamate and GABA is consistent with persistent hippocampal neuroadaptations caused by MDMA. CI - Copyright (c) 2010 Elsevier Inc. All rights reserved. FAU - Perrine, Shane A AU - Perrine SA AD - Department of Psychiatry and Behavioral Neurosciences, Brain Research and Imaging Neuroscience Division, Wayne State University School of Medicine, Detroit, MI 48201, USA. sperrine@med.wayne.edu FAU - Ghoddoussi, Farhad AU - Ghoddoussi F FAU - Michaels, Mark S AU - Michaels MS FAU - Hyde, Elisabeth M AU - Hyde EM FAU - Kuhn, Donald M AU - Kuhn DM FAU - Galloway, Matthew P AU - Galloway MP LA - eng GR - K01-DA024760/DA/NIDA NIH HHS/United States GR - R01 DA016736/DA/NIDA NIH HHS/United States GR - K01 DA024760-02/DA/NIDA NIH HHS/United States GR - K01 DA024760/DA/NIDA NIH HHS/United States GR - R01-DA016736/DA/NIDA NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20100826 PL - Netherlands TA - Neurotoxicology JT - Neurotoxicology JID - 7905589 RN - 0 (Serotonin Antagonists) RN - 30KYC7MIAI (Aspartic Acid) RN - 333DO1RDJY (Serotonin) RN - 997-55-7 (N-acetylaspartate) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Animals MH - Aspartic Acid/*analogs & derivatives/metabolism MH - Brain/*drug effects/*metabolism MH - Brain Chemistry/*drug effects/physiology MH - Male MH - N-Methyl-3,4-methylenedioxyamphetamine/*toxicity MH - Rats MH - Rats, Sprague-Dawley MH - Serotonin/*metabolism MH - Serotonin Antagonists/*toxicity PMC - PMC2974051 MID - NIHMS232135 EDAT- 2010/08/31 06:00 MHDA- 2011/10/01 06:00 PMCR- 2011/12/01 CRDT- 2010/08/31 06:00 PHST- 2009/06/10 00:00 [received] PHST- 2010/06/09 00:00 [revised] PHST- 2010/08/18 00:00 [accepted] PHST- 2010/08/31 06:00 [entrez] PHST- 2010/08/31 06:00 [pubmed] PHST- 2011/10/01 06:00 [medline] PHST- 2011/12/01 00:00 [pmc-release] AID - S0161-813X(10)00174-9 [pii] AID - 10.1016/j.neuro.2010.08.005 [doi] PST - ppublish SO - Neurotoxicology. 2010 Dec;31(6):654-61. doi: 10.1016/j.neuro.2010.08.005. Epub 2010 Aug 26.