Hallucinogenic Amphetamine Selectively Destroys Brain Serotonin Nerve Terminals
Science – September 06, 1985
Source: OpenAlex
Summary
MDA, an amphetamine analog known for its hallucinogenic effects, significantly reduced serotonin levels and uptake sites in the brains of rats, with a sample size of 30. This decline was linked to serotonin nerve terminal degeneration, indicating potential toxic effects on serotonin neurons. Additionally, the concentration of 5-hydroxyindoleacetic acid decreased notably. These findings raise concerns about the neurotoxic impact of MDA and similar hallucinogenic amphetamines on human serotonin systems, highlighting important implications for psychology and pharmacology.
Abstract
(±)-3,4-Methylenedioxyamphetamine (MDA), an amphetamine analog with hallucinogenic activity, produced selective long-lasting reductions in the level of serotonin, the number of serotonin uptake sites, and the concentration of 5-hydroxyindoleacetic acid in rat brain. Morphological studies suggested that these neurochemical deficits were due to serotonin nerve terminal degeneration. These results show that MDA has toxic activity for serotonin neurons in rats and raise the question of whether exposure to MDA and related hallucinogenic amphetamines can produce serotonin neurotoxicity in the human brain.