An enzyme has been found that N-methylates serotonin and tryptamine to psychotomimetic metabolites, bufotenine and N,N-dimethyltryptamine. This enzyme is highly localized in the rabbit lung and also N-methylates phenylethylamine derivatives such as tyramine, phenylethylamine, mescaline, and dopamine.
Late in the 1950s, Axelrod became interested in the distribution, excretion, metabolization and rate of "biotransformation" of lysergic acid diethylamide (LSD) by the body. In this first of several articles on the narcotic drug, he detailed the subcellular processes involved in the transformation of LSD, determined the order of concentrations of the drug in various tissues, determined that it...