PMID- 15602749 OWN - NLM STAT- MEDLINE DCOM- 20050511 LR - 20131121 IS - 0887-4476 (Print) IS - 0887-4476 (Linking) VI - 55 IP - 3 DP - 2005 Mar 1 TI - 3,4-Methylenedioxymethamphetamine counteracts akinesia enantioselectively in rat rotational behavior and catalepsy. PG - 148-55 AB - We have shown recently that 3,4-methylenedioxymethamphetamine (MDMA) has symptomatic antiparkinsonian activity in rodent models of Parkinson's disease. In search of its mechanism of action, we further investigated the enantiomers of MDMA in the rotational behavioral model and catalepsy test. Catalepsy testing was done in drug-naive unlesioned animals. The parkinsonian symptoms rigor and akinesia (i.e., catalepsy) were induced by intraperitoneal administration of haloperidol 0.5 mg/kg and measured repeatedly as descent latency from a horizontal bar and a vertical grid. MDMA and both its enantiomers were effective in counteracting haloperidol-induced catalepsy, but if given as racemic, the effects were more pronounced than with the enantiomers. For testing of rotational behavior, male Sprague Dawley rats were lesioned unilaterally with 6-hydroxydopamine (6-OHDA) at the medial forebrain bundle. Administration of S-MDMA (5 mg/kg) produced ipsilateral rotations. R-MDMA was far less effective in inducing ipsilateral rotations in 6-OHDA unilaterally lesioned rats, but when S-MDMA was given additionally rotations immediately increased. Regarding their overall antiparkinsonian effects, the S-enantiomer of MDMA was more effective than its R-congener. R-MDMA was able to increase the actions of S-MDMA. FAU - Lebsanft, Heike B AU - Lebsanft HB AD - Neuropharmacology, Zoological Institute, Faculty of Biology, University of Tuebingen, 72076 Tuebingen, Germany. heike.lebsanft@uni-tuebingen.de FAU - Kohles, Timo AU - Kohles T FAU - Kovar, Karl-Artur AU - Kovar KA FAU - Schmidt, Werner J AU - Schmidt WJ LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - Synapse JT - Synapse (New York, N.Y.) JID - 8806914 RN - 0 (Adrenergic Uptake Inhibitors) RN - 0 (Antiparkinson Agents) RN - 8HW4YBZ748 (Oxidopamine) RN - J6292F8L3D (Haloperidol) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) SB - IM MH - Adrenergic Uptake Inhibitors/chemistry/*pharmacology/therapeutic use MH - Animals MH - Antiparkinson Agents/chemistry/*pharmacology/therapeutic use MH - Behavior, Animal/drug effects/physiology MH - Catalepsy/chemically induced/*drug therapy/physiopathology MH - Denervation MH - Disease Models, Animal MH - Gait Disorders, Neurologic/chemically induced/*drug therapy/physiopathology MH - Haloperidol MH - Male MH - N-Methyl-3,4-methylenedioxyamphetamine/chemistry/*pharmacology/therapeutic use MH - Oxidopamine MH - Parkinsonian Disorders/*drug therapy/physiopathology MH - Rats MH - Rats, Sprague-Dawley MH - Rotation MH - Stereoisomerism EDAT- 2004/12/17 09:00 MHDA- 2005/05/12 09:00 CRDT- 2004/12/17 09:00 PHST- 2004/12/17 09:00 [pubmed] PHST- 2005/05/12 09:00 [medline] PHST- 2004/12/17 09:00 [entrez] AID - 10.1002/syn.20102 [doi] PST - ppublish SO - Synapse. 2005 Mar 1;55(3):148-55. doi: 10.1002/syn.20102.