PMID- 10936179 OWN - NLM STAT- MEDLINE DCOM- 20000912 LR - 20190630 IS - 0022-3042 (Print) IS - 0022-3042 (Linking) VI - 75 IP - 3 DP - 2000 Sep TI - 2-Deoxy-D-glucose prevents and nicotinamide potentiates 3, 4-methylenedioxymethamphetamine-induced serotonin neurotoxicity. PG - 982-90 AB - Neurotoxicity induced by different substituted amphetamines has been associated with the exhaustion of intracellular energy stores. Accordingly, we examined the influence of 2-deoxy-D-glucose (2-DG), a competitive inhibitor of glucose uptake and metabolism, and nicotinamide, an agent that improves energy metabolism, on 3, 4-methylenedioxymethamphetamine (MDMA)-induced 5-hydroxytryptamine (5-HT; serotonin) deficits. Administration of MDMA (15 mg/kg i.p.) produced a significant hyperthermia, whereas 2-DG caused a profound hypothermia that lasted throughout the experiment. When MDMA was given to 2-DG-treated rats, an immediate but transient hyperthermia occurred and was followed by a return to hypothermia. 2-DG had no effect on 5-HT concentrations in the frontal cortex, hippocampus, and striatum but prevented the neurotoxicity induced by MDMA. When rats were injected with 2-DG/MDMA and were warmed to prevent hypothermia, the protection afforded by 2-DG was abolished. Nicotinamide had no effect on body temperature of the rats, and the hyperthermia induced by the nicotinamide/MDMA treatment was similar to that of the saline/MDMA-treated rats. However, the long-term 5-HT deficits induced by MDMA were potentiated by nicotinamide in all the brain regions examined. Finally, no change on ATP concentrations in the frontal cortex, hippocampus, and striatum was observed up to 3 h after a single dose of MDMA. These results suggest that an altered energy metabolism is not the main cause of the neurotoxic effects induced by MDMA. FAU - Hervias, I AU - Hervias I AD - Department of Pharmacology, University of Navarra Medical School, Pamplona, Spain. FAU - Lasheras, B AU - Lasheras B FAU - Aguirre, N AU - Aguirre N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Neurochem JT - Journal of neurochemistry JID - 2985190R RN - 0 (Carrier Proteins) RN - 0 (Membrane Glycoproteins) RN - 0 (Membrane Transport Proteins) RN - 0 (Nerve Tissue Proteins) RN - 0 (Neurotoxins) RN - 0 (Serotonin Plasma Membrane Transport Proteins) RN - 0 (Slc6a4 protein, rat) RN - 102-32-9 (3,4-Dihydroxyphenylacetic Acid) RN - 25X51I8RD4 (Niacinamide) RN - 333DO1RDJY (Serotonin) RN - 41VRH5220H (Paroxetine) RN - 54-16-0 (Hydroxyindoleacetic Acid) RN - 8L70Q75FXE (Adenosine Triphosphate) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) RN - VTD58H1Z2X (Dopamine) RN - X77S6GMS36 (Homovanillic Acid) SB - IM MH - 3,4-Dihydroxyphenylacetic Acid/metabolism MH - Adenosine Triphosphate/metabolism MH - Animals MH - Body Temperature/drug effects MH - Brain/drug effects/*metabolism MH - Carrier Proteins/metabolism MH - Corpus Striatum/drug effects/metabolism MH - Dopamine/metabolism MH - Drug Synergism MH - Frontal Lobe/drug effects/metabolism MH - Hippocampus/drug effects/metabolism MH - Homovanillic Acid/metabolism MH - Hydroxyindoleacetic Acid/metabolism MH - Hypothermia/chemically induced MH - Male MH - Membrane Glycoproteins/metabolism MH - *Membrane Transport Proteins MH - N-Methyl-3,4-methylenedioxyamphetamine/antagonists & inhibitors/*toxicity MH - *Nerve Tissue Proteins MH - Neurotoxins/toxicity MH - Niacinamide/*pharmacology MH - Organ Specificity MH - Paroxetine/pharmacokinetics MH - Rats MH - Rats, Wistar MH - Serotonin/*metabolism MH - Serotonin Plasma Membrane Transport Proteins EDAT- 2000/08/11 11:00 MHDA- 2000/09/19 11:01 CRDT- 2000/08/11 11:00 PHST- 2000/08/11 11:00 [pubmed] PHST- 2000/09/19 11:01 [medline] PHST- 2000/08/11 11:00 [entrez] AID - 10.1046/j.1471-4159.2000.0750982.x [doi] PST - ppublish SO - J Neurochem. 2000 Sep;75(3):982-90. doi: 10.1046/j.1471-4159.2000.0750982.x.