PMID- 20026184 OWN - NLM STAT- MEDLINE DCOM- 20100412 LR - 20141120 IS - 1872-7972 (Electronic) IS - 0304-3940 (Linking) VI - 469 IP - 3 DP - 2010 Jan 29 TI - MDMA ("ecstasy") impairs learning in the Morris Water Maze and reduces hippocampal LTP in young rats. PG - 375-9 LID - 10.1016/j.neulet.2009.12.031 [doi] AB - 3,4-Methylenedioxymethamphetamine (MDMA), an important recreational psychostimulant drug, was examined for its ability to alter visuo-spatial learning and synaptic plasticity. Young rats received MDMA (0.2 and 2mg/kg s.c.) twice per day for 6 days while their visuo-spatial learning was tested using the Morris Water Maze. After this, animals were sacrificed and LTP induced in hippocampal slices. Visuo-spatial learning was impaired and LTP reduced, both dose-dependently, without changes in serotonin levels or paired-pulse facilitation. We conclude that low, nontoxic doses of MDMA, applied during several days, slow learning by impairing postsynaptic plasticity. CI - (c) 2009 Elsevier Ireland Ltd. All rights reserved. FAU - Arias-Cavieres, Alejandra AU - Arias-Cavieres A AD - Department of Biology, Faculty of Chemistry and Biology, University of Santiago de Chile, Chile. FAU - Rozas, Carlos AU - Rozas C FAU - Reyes-Parada, Miguel AU - Reyes-Parada M FAU - Barrera, Nelson AU - Barrera N FAU - Pancetti, Floria AU - Pancetti F FAU - Loyola, Sebastian AU - Loyola S FAU - Lorca, Ramon A AU - Lorca RA FAU - Zeise, Marc L AU - Zeise ML FAU - Morales, Bernardo AU - Morales B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091218 PL - Ireland TA - Neurosci Lett JT - Neuroscience letters JID - 7600130 RN - 0 (Central Nervous System Stimulants) RN - 333DO1RDJY (Serotonin) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Aging MH - Animals MH - CA1 Region, Hippocampal/*drug effects/physiology MH - Central Nervous System Stimulants/administration & dosage/*pharmacology MH - Dose-Response Relationship, Drug MH - In Vitro Techniques MH - Long-Term Potentiation/*drug effects MH - Male MH - Maze Learning/*drug effects/physiology MH - N-Methyl-3,4-methylenedioxyamphetamine/administration & dosage/*pharmacology MH - Neuronal Plasticity/drug effects MH - Rats MH - Rats, Sprague-Dawley MH - Serotonin/metabolism MH - Space Perception/drug effects/physiology MH - Swimming MH - Time Factors MH - Visual Perception/drug effects/physiology EDAT- 2009/12/23 06:00 MHDA- 2010/04/13 06:00 CRDT- 2009/12/23 06:00 PHST- 2009/11/06 00:00 [received] PHST- 2009/12/09 00:00 [revised] PHST- 2009/12/12 00:00 [accepted] PHST- 2009/12/23 06:00 [entrez] PHST- 2009/12/23 06:00 [pubmed] PHST- 2010/04/13 06:00 [medline] AID - S0304-3940(09)01601-2 [pii] AID - 10.1016/j.neulet.2009.12.031 [doi] PST - ppublish SO - Neurosci Lett. 2010 Jan 29;469(3):375-9. doi: 10.1016/j.neulet.2009.12.031. Epub 2009 Dec 18.