title: Liquid chromatographic-electrospray ionization mass spectrometric assay for simultaneous determination of 3,4-methylenedioxymethamphetamine and its metabolites 3,4-methylenedioxyamphetamine, 3,4-dihydroxymethamphetamine, and 4-hydroxy-3-methoxymethamphetamine in rat brain.
abstract: 3,4-Methylenedioxymethamphetamine (MDMA) is a psychoactive drug with abuse liability and neurotoxic potential. Mechanisms by which MDMA produces behavioral and neurotoxic effects have yet to be elucidated. By measuring concentrations of MDMA and its metabolites in relevant brain sites, it may be possible to gain insight into mechanisms underlying MDMA actions. For this purpose, an LC-MS assay with electrospray ionization was developed after homogenization of rat brain and enzymatic conjugate cleavage. The method was successfully validated with respect to selectivity, linearity, accuracy, precision, recovery, and matrix effect and its use should help to delineate the neurotoxic mechanism of action of MDMA.
authors.affiliation: Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology, Saarland University, D-66421 Homburg (Saar), Germany.
authors.forename: Melanie
authors.initials: M
authors.lastname: Mueller
authors.forename: Frank T
authors.initials: FT
authors.lastname: Peters
authors.forename: George A
authors.initials: GA
authors.lastname: Ricaurte
authors.forename: Hans H
authors.initials: HH
authors.lastname: Maurer
mesh_terms: D015104:3,4-Methylenedioxyamphetamine / Q000032:analysis* / Q000378:metabolism; D000818:Animals; D001921:Brain / Q000378:metabolism; D001923:Brain Chemistry; D002853:Chromatography, Liquid / Q000379:methods*; D003846:Deoxyepinephrine / Q000031:analogs & derivatives* / Q000032:analysis / Q000378:metabolism; D008694:Methamphetamine / Q000031:analogs & derivatives* / Q000032:analysis / Q000378:metabolism; D018817:N-Methyl-3,4-methylenedioxyamphetamine / Q000032:analysis* / Q000378:metabolism; D051381:Rats; D015203:Reproducibility of Results; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*
chemical_list: C079646:4-hydroxy-3-methoxymethamphetamine; C069512:alpha-methylepinine; D008694:Methamphetamine; D015104:3,4-Methylenedioxyamphetamine; D018817:N-Methyl-3,4-methylenedioxyamphetamine; D003846:Deoxyepinephrine