PMID- 1382813 OWN - NLM STAT- MEDLINE DCOM- 19921125 LR - 20190613 IS - 0006-8993 (Print) IS - 0006-8993 (Linking) VI - 589 IP - 2 DP - 1992 Sep 4 TI - Evaluation of the neurotoxicity of N-methyl-1-(4-methoxyphenyl)-2-aminopropane (para-methoxymethamphetamine, PMMA). PG - 349-52 AB - These studies assessed the neurotoxic potential of N-methyl-1-(4-methoxyphenyl)-2-aminopropane (para-methoxymethamphetamine; PMMA), an amphetamine analog that has surfaced in the illicit drug market. Repeated subcutaneous injections of PMMA caused lasting, dose-related reductions in regional brain concentrations of serotonin (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA), and in the density of [3H]paroxetine-labelled 5-HT uptake sites. Comparison of the neurotoxic potential of PMMA to that of para-methoxyamphetamine (PMA) and 3,4-methyl-enedioxymethamphetamine (MDMA) showed that equivalent doses of PMMA and PMA (80 mg/kg) produced comparable depletions of 5-HT, but that these depletions were not as pronounced as those induced by a lower dose of MDMA (20 mg/kg). Striatal DA was not affected on a long-term basis by any of the ring-substituted amphetamines evaluated in this study. These data suggest that PMMA, like PMA and MDMA, produces long-term (possibly neurotoxic) effects on brain serotonin neurons, but that PMMA is less potent than MDMA as a 5-HT neurotoxin. Further, they raise concern over the illicit use of PMMA since humans could be more sensitive than rodents to the 5-HT neurotoxic effects of PMMA and related drugs. FAU - Steele, T D AU - Steele TD AD - Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21224. FAU - Katz, J L AU - Katz JL FAU - Ricaurte, G A AU - Ricaurte GA LA - eng GR - DA 06275/DA/NIDA NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Amphetamines) RN - 0 (Hallucinogens) RN - 037U5SR9KL (4-methoxymethamphetamine) RN - 333DO1RDJY (Serotonin) RN - 44RAL3456C (Methamphetamine) RN - 4764-17-4 (3,4-Methylenedioxyamphetamine) RN - 54-16-0 (Hydroxyindoleacetic Acid) RN - KE1SEN21RM (N-Methyl-3,4-methylenedioxyamphetamine) RN - OVB8F8P39Q (4-methoxyamphetamine) SB - IM MH - 3,4-Methylenedioxyamphetamine/analogs & derivatives/toxicity MH - Amphetamines/toxicity MH - Animals MH - Brain Chemistry/drug effects MH - Hallucinogens/toxicity MH - Hydroxyindoleacetic Acid/metabolism MH - Male MH - Methamphetamine/*analogs & derivatives/toxicity MH - N-Methyl-3,4-methylenedioxyamphetamine MH - Nervous System Diseases/*chemically induced/physiopathology MH - Rats MH - Rats, Sprague-Dawley MH - Serotonin/metabolism MH - Structure-Activity Relationship EDAT- 1992/09/04 00:00 MHDA- 1992/09/04 00:01 CRDT- 1992/09/04 00:00 PHST- 1992/09/04 00:00 [pubmed] PHST- 1992/09/04 00:01 [medline] PHST- 1992/09/04 00:00 [entrez] AID - 0006-8993(92)91298-S [pii] AID - 10.1016/0006-8993(92)91298-s [doi] PST - ppublish SO - Brain Res. 1992 Sep 4;589(2):349-52. doi: 10.1016/0006-8993(92)91298-s.