Effects of N, N-Dimethyltryptamine on Rat Behaviors Relevant to Anxiety and Depression. 2018

Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
Neuroscience Graduate Program , University of California, Davis , Davis , California 95618 , United States.

Depression and anxiety disorders are debilitating diseases resulting in substantial economic costs to society. Traditional antidepressants often take weeks to months to positively affect mood and are ineffective for about 30% of the population. Alternatives, such as ketamine, a dissociative anesthetic capable of producing hallucinations, and the psychoactive tisane ayahuasca, have shown great promise due to their fast-acting nature and effectiveness in treatment-resistant populations. Here, we investigate the effects of N, N-dimethyltryptamine (DMT), the principle hallucinogenic component of ayahuasca, in rodent behavioral assays relevant to anxiety and depression using adult, male, Sprague-Dawley rats. We find that while DMT elicits initial anxiogenic responses in several of these paradigms, its long-lasting effects tend to reduce anxiety by facilitating the extinction of cued fear memory. Furthermore, DMT reduces immobility in the forced swim test, which is a characteristic behavioral response induced by many antidepressants. Our results demonstrate that DMT produces antidepressant and anxiolytic behavioral effects in rodents, warranting further investigation of ayahuasca and classical psychedelics as treatments for depression and post-traumatic stress disorder.

UI MeSH Term Description Entries
D008297 Male Males
D009043 Motor Activity Body movements of a human or an animal as a behavioral phenomenon. Activities, Motor,Activity, Motor,Motor Activities
D011918 Rats, Inbred SHR A strain of Rattus norvegicus with elevated blood pressure used as a model for studying hypertension and stroke. Rats, Spontaneously Hypertensive,Rats, SHR,Inbred SHR Rat,Inbred SHR Rats,Rat, Inbred SHR,Rat, SHR,Rat, Spontaneously Hypertensive,SHR Rat,SHR Rat, Inbred,SHR Rats,SHR Rats, Inbred,Spontaneously Hypertensive Rat,Spontaneously Hypertensive Rats
D003213 Conditioning, Psychological Simple form of learning involving the formation, strengthening, or weakening of an association between a stimulus and a response. Conditioning, Psychology,Psychological Conditioning,Social Learning Theory,Social Learning Theories,Theory, Social Learning
D003866 Depressive Disorder An affective disorder manifested by either a dysphoric mood or loss of interest or pleasure in usual activities. The mood disturbance is prominent and relatively persistent. Depression, Endogenous,Depression, Neurotic,Depression, Unipolar,Depressive Syndrome,Melancholia,Neurosis, Depressive,Unipolar Depression,Depressions, Endogenous,Depressions, Neurotic,Depressions, Unipolar,Depressive Disorders,Depressive Neuroses,Depressive Neurosis,Depressive Syndromes,Disorder, Depressive,Disorders, Depressive,Endogenous Depression,Endogenous Depressions,Melancholias,Neuroses, Depressive,Neurotic Depression,Neurotic Depressions,Syndrome, Depressive,Syndromes, Depressive,Unipolar Depressions
D004130 N,N-Dimethyltryptamine An N-methylated indoleamine derivative and serotonergic hallucinogen which occurs naturally and ubiquitously in several plant species including Psychotria veridis. It also occurs in trace amounts in mammalian brain, blood, and urine, and is known to act as an agonist or antagonist of certain SEROTONIN RECEPTORS. Dimethyltryptamine,N,N Dimethyltryptamine
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D005106 Exploratory Behavior The tendency to explore or investigate a novel environment. It is considered a motivation not clearly distinguishable from curiosity. Curiosity,Novelty-Seeking Behavior,Behavior, Exploratory,Behavior, Novelty-Seeking,Behaviors, Exploratory,Behaviors, Novelty-Seeking,Curiosities,Exploratory Behaviors,Novelty Seeking Behavior,Novelty-Seeking Behaviors
D005239 Fear The affective response to an actual current external danger which subsides with the elimination of the threatening condition. Threat Cues,Threat Sensitivity,Cue, Threat,Fears,Sensitivity, Threat,Threat Cue,Threat Sensitivities
D005247 Feeding Behavior Behavioral responses or sequences associated with eating including modes of feeding, rhythmic patterns of eating, and time intervals. Dietary Habits,Eating Behavior,Faith-based Dietary Restrictions,Feeding Patterns,Feeding-Related Behavior,Food Habits,Diet Habits,Eating Habits,Behavior, Eating,Behavior, Feeding,Behavior, Feeding-Related,Behaviors, Eating,Behaviors, Feeding,Behaviors, Feeding-Related,Diet Habit,Dietary Habit,Dietary Restriction, Faith-based,Dietary Restrictions, Faith-based,Eating Behaviors,Eating Habit,Faith based Dietary Restrictions,Faith-based Dietary Restriction,Feeding Behaviors,Feeding Pattern,Feeding Related Behavior,Feeding-Related Behaviors,Food Habit,Habit, Diet,Habit, Dietary,Habit, Eating,Habit, Food,Habits, Diet,Pattern, Feeding,Patterns, Feeding,Restrictions, Faith-based Dietary

Related Publications

Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
February 1977, Pharmacology, biochemistry, and behavior,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
January 1973, Life sciences. Pt. 1: Physiology and pharmacology,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
January 1974, Pharmacology, biochemistry, and behavior,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
January 1978, Acta biologica et medica Germanica,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
January 1972, Psychopharmacologia,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
May 1987, Biochemical pharmacology,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
July 1987, Biochemical pharmacology,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
June 1977, Biological psychiatry,
Lindsay P Cameron, and Charlie J Benson, and Lee E Dunlap, and David E Olson
July 1978, Pharmacology, biochemistry, and behavior,
Copied contents to your clipboard!