PMID- 24560859 OWN - NLM STAT- MEDLINE DCOM- 20140602 LR - 20191210 IS - 1879-0631 (Electronic) IS - 0024-3205 (Linking) VI - 101 IP - 1-2 DP - 2014 Apr 17 TI - Elucidating the neurotoxic effects of MDMA and its analogs. PG - 37-42 LID - S0024-3205(14)00252-5 [pii] LID - 10.1016/j.lfs.2014.02.010 [doi] AB - AIMS: There is a rapid increase in the use of methylenedioxymethamphetamine (MDMA) and its structural congeners/analogs globally. MDMA and MDMA-analogs have been synthesized illegally in furtive dwellings and are abused due to its addictive potential. Furthermore, MDMA and MDMA-analogs have shown to have induced several adverse effects. Hence, understanding the mechanisms mediating this neurotoxic insult of MDMA-analogs is of immense importance for the public health in the world. MAIN METHODS: We synthesized and investigated the neurotoxic effects of MDMA and its analogs [4-methylenedioxyamphetamine (MDA), 2, 6-methylenedioxyamphetamine (MDMA), and N-ethyl-3, 4-methylenedioxyamphetamine (MDEA)]. The stimulatory or the dopaminergic agonist effects of MDMA and MDMA-analogs were elucidated using the established 6-hydroxydopamine lesioned animal model. Additionally, we also investigated the neurotoxic mechanisms of MDMA and MDMA-analogs on mitochondrial complex-I activity and reactive oxygen species generation. KEY FINDINGS: MDMA and MDMA-analogs exhibited stimulatory activity as compared to amphetamines and also induced several behavioral changes in the rodents. MDMA and MDMA-analogs enhanced the reactive oxygen generation and inhibited mitochondrial complex-I activity which can lead to neurodegeneration. Hence the mechanism of neurotoxicity, MDMA and MDMA-analogs can enhance the release of monoamines, alter the monoaminergic neurotransmission, and augment oxidative stress and mitochondrial abnormalities leading to neurotoxicity. SIGNIFICANCE: Thus, our study will help in developing effective pharmacological and therapeutic approaches for the treatment of MDMA and MDMA-analog abuse. CI - Copyright (c) 2014 Elsevier Inc. All rights reserved. FAU - Karuppagounder, Senthilkumar S AU - Karuppagounder SS AD - Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA. FAU - Bhattacharya, Dwipayan AU - Bhattacharya D AD - Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA. FAU - Ahuja, Manuj AU - Ahuja M AD - Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA. FAU - Suppiramaniam, Vishnu AU - Suppiramaniam V AD - Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA. FAU - Deruiter, Jack AU - Deruiter J AD - Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA. FAU - Clark, Randall AU - Clark R AD - Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA. FAU - Dhanasekaran, Muralikrishnan AU - Dhanasekaran M AD - Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA. Electronic address: dhanamu@auburn.edu. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140219 PL - Netherlands TA - Life Sci JT - Life sciences JID - 0375521 RN - 0 (Dopamine Agonists) RN - 0 (Mitochondrial Proteins) RN - 0 (Reactive Oxygen Species) RN - 8HW4YBZ748 (Oxidopamine) RN - EC 7.1.1.2 (Electron Transport Complex I) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Animals MH - Behavior, Animal/*drug effects MH - Brain/drug effects/metabolism MH - Dopamine Agonists/*toxicity MH - Electron Transport Complex I/*metabolism MH - Male MH - Mitochondrial Proteins/metabolism MH - N-Methyl-3,4-methylenedioxyamphetamine/*analogs & derivatives/*toxicity MH - Oxidopamine MH - Rats MH - Reactive Oxygen Species/*metabolism OTO - NOTNLM OT - Drugs of abuse OT - MDMA & analogs OT - Mitochondrial dysfunction OT - Neurotoxicity OT - Oxidative stress EDAT- 2014/02/25 06:00 MHDA- 2014/06/03 06:00 CRDT- 2014/02/25 06:00 PHST- 2013/08/30 00:00 [received] PHST- 2014/01/21 00:00 [revised] PHST- 2014/02/08 00:00 [accepted] PHST- 2014/02/25 06:00 [entrez] PHST- 2014/02/25 06:00 [pubmed] PHST- 2014/06/03 06:00 [medline] AID - S0024-3205(14)00252-5 [pii] AID - 10.1016/j.lfs.2014.02.010 [doi] PST - ppublish SO - Life Sci. 2014 Apr 17;101(1-2):37-42. doi: 10.1016/j.lfs.2014.02.010. Epub 2014 Feb 19.