1. The hyperactivity and hyperpyrexia produced by L-tryptophan in rats treated with a monoamine oxidase inhibitor was inhibited by chlorpromazine.2. Chlorpromazine did not inhibit the increased rate of synthesis of brain 5-hydroxytryptamine (5-HT) produced by tryptophan loading.3. Hyperactivity and hyperpyrexia were also produced by 5-methoxy-N,N-dimethyltryptamine (5-MeODMT) in rats....
Agronomy JournalMay 1, 1971Robert F. Barnes, A. B. Simons, Gordon C. Marten8 citations
Abstract Indole alkaloid derivatives have been reported in reed canarygrass (Phalaris arundinacea L.). We measured the contents of three alkaloids in two palatable and two unpalatable clones of reed canarygrass to study the relationship between alkaloids and palatability. The palatability ratings had been previously determined in cafeteria grazing trials with sheep. Chopped frozen forage from...
We determined the types and amounts of alkaloids found in four reed canarygrass ( Phalaris arundinacea L.) genotypes that differed in palatability. The palatability differences had been demonstrated previously in cafeteria grazing trials with lambs. The following alkaloids were identified in reed canarygrass by combinations of gas‐liquid chromatography, thin‐layer chromatography, and mass...
Four indole–3–alkylamines, viz., N,N–dimethyltryptamine, its N b –oxide, bufo–tenine, and 5–methoxy–N,N–dimethyltryptamine along with two uncharacterized 5–oxy–indole–3–alkylamines and a β–carboline were isolated from the various parts, except the trichomes of pods, of Mucuna pruriens DC. The trichomes of pods afforded only serotonin. Besides these, choline was found in all parts of the plant....
SIMPLE INDOLE derivatives like the alkylated tryptamines, N,N-dimethyltryptamine (DMT) and N,N-diethyltryptamine (DET), produce psychotogenic-like symptoms similar to lysergic acid diethyemide (LSD) and mescaline.1-4 One of the important metabolic pathways of DET has been shown to be by 6-hydroxylation.5The known metabolic pathways of DET are summarized in Fig 1. Other investigators have...
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.
Ayahuasca is a pan-Amazonian botanical hallucinogenic decoction made from a mixture of the bark of the Banisteriopsis caapi plant, containing a monoamine oxidase inhibitor, and Psychotria viridis (Rubiaceae) or Diplopterys cabrerana shrubs containing a serotonergic 2A receptor agonist, N,N-dimethyltryptamine, a powerful psychoactive substance. Ayahuasca is a traditional psychoactive sacrament...
Ayahuasca is a South American plant hallucinogen rich in the psychedelic N,N-dimethyltryptamine and β-carbolines (mainly harmine). Preclinical and observational studies suggest that ayahuasca exerts beneficial effects in substance use disorders, but these potentials were never assessed in a clinical trial. Single-center, single-blind, feasibility, proof-of-concept study, assessing the effects...
Karis Will, Sergio Lázaro Martínez, Surya A Reis et al.
N,N-dimethyltryptamine (DMT) is a serotonergic psychedelic with a history of ethnobotanical use and emerging clinical efficacy for neuropsychiatric disorders. Following Julius Axelrod's pioneering studies showing DMT production in human tissues, DMT has been proposed as an endogenous neuromodulator because it is a serotonin 2A receptor (5-HT2A R) agonist. However, the DMT-producing enzyme,...
Ruiyi Qiu, Scott Galeung Alexander Mann, Thiago Nascimento et al.
Ayahuasca, used religiously for centuries by Amazonian Indigenous peoples and increasingly studied for its therapeutic potential, owes its psychoactivity to two plants: Psychotria viridis supplies N,N-dimethyltryptamine (DMT), whereas Banisteriopsis caapi supplies beta-carbolines that render DMT orally active. Here we show that the two plants have distinct genome histories: P. viridis is...