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Effects of hallucinogenic agents mescaline and phencyclidine on zebrafish behavior and physiology

Evan J. Kyzar, Christopher Collins, Siddharth Gaikwad, Jeremy Green, Andrew Roth, Louis Monnig, Mohamed El-Ounsi, Ari Davis, Andrew J. Freeman, Nicholas Capezio, Adam Stewart, Allan V. Kalueff

Progress in Neuro-Psychopharmacology and Biological Psychiatry January 10, 2012 DOI: 10.1016/j.pnpbp.2012.01.003 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Experimental study Peer reviewed
Population Zebrafish (Danio rerio)
Interventions Mescaline Phencyclidine (PCP)
Dose 5-20 mg/l mescaline, 0.5-3 mg/l PCP
Topics Mescaline
Keywords Hallucinogen Phencyclidine Zebrafish Danio Open field Pharmacology
Citations 122
Key findings Mescaline and PCP dose-dependently altered zebrafish behavior in the novel tank, open field, and shoaling tests, with PCP uniquely evoking circling behavior and elevating cortisol levels.

Abstract

Mescaline and phencyclidine (PCP) are potent hallucinogenic agents affecting human and animal behavior. As their psychotropic effects remain poorly understood, further research is necessary to characterize phenotypes they evoke in various animal models. Zebrafish (Danio rerio) are rapidly emerging as a new model organism for neuroscience research. Here, we examine the effects of mescaline (5-20mg/l) and PCP (0.5-3mg/l) in several zebrafish paradigms, including the novel tank, open field and shoaling tests. Mescaline and PCP dose-dependently increased top activity in the novel tank test, also reducing immobility and disrupting the patterning of zebrafish swimming, as assessed by ethograms. PCP, but not mescaline, evoked circling behavior in the open field test. At the highest doses tested, mescaline markedly increased, while PCP did not affect, zebrafish shoaling behavior. Finally, 20mg/l mescaline did not alter, and 3mg/l PCP elevated, whole-body cortisol levels. Overall, our studies indicate high sensitivity of zebrafish models to hallucinogenic compounds with complex behavioral and physiological effects.

Comparable studies

Other preclinical and animal studies on mescaline, most cited first.

Study Year Design Participants
Correlation between the potency of hallucinogens in the mouse head-twitch response assay and their behavioral and subjective effects in other species. C57BL/6J mice 2020 Experimental study with dose-response experiments
Brain mechanisms of hallucinogens and entactogens Humans and rats 2001 Review
Lysergic Acid Diethylamide- and Mescaline-Induced Attenuation of the Effect of Punishment in the Rat Rats 1976 Experimental study
Dihydrobenzofuran Analogues of Hallucinogens. 3. Models of 4-Substituted (2,5-Dimethoxyphenyl)alkylamine Derivatives with Rigidified Methoxy Groups Rats (trained to discriminate saline from LSD tartrate) and rat cortical and... 1996 In vivo drug discrimination assay and in vitro radioligand binding assay
Transient reinforcing effects of phenylisopropylamine and indolealkylamine hallucinogens in rhesus monkeys Rhesus monkeys with a history of MDMA self-administration 2004 Observational cohort n = 4

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