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Psilocybin: Reaction with a Fraction of Rat Brain

L. P. Gilmour, R. D. O’brien

Science January 13, 1967 DOI: 10.1126/science.155.3759.207 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Laboratory experiment Peer reviewed
Population Rat-brain mitochondria subfraction
Intervention Psilocybin
Topics Psilocybin Serotonin
Keywords Hallucinogen Ethylenediaminetetraacetic acid Biophysics Pharmacology
Citations 7
Key findings Psilocybin produces a blue color with a specific rat-brain mitochondrial subfraction, a reaction not shared by similar compounds and antagonized only by tyramine or EDTA.

Abstract

Psilocybin, a hallucinogen, formed a blue color with a subfraction of rat-brain mitochondria believed to contain nerve-ending particles. Color formation increased with p H, did not require oxygen, and involved a component that could not be solubilized. The effect was not shown by chemically related neuroactive compounds, such as bufotenine and serotonin, and was antagonized by only tyramine or ethylenediaminetetraacetic acid.

Comparable studies

Other experimental studies on psilocybin, most cited first.

Study Year Design Participants
Psilocybin induces schizophrenia-like psychosis in humans via a serotonin-2 agonist action Healthy human volunteers 1998 Experimental study
Validation of the revised Mystical Experience Questionnaire in experimental sessions with psilocybin Participants in controlled laboratory experiments receiving a moderate to high oral... 2015 Validation study using pooled data from five laboratory experiments n = 184
Broadband Cortical Desynchronization Underlies the Human Psychedelic State Healthy human participants 2013 Experimental study
Long-term follow-up of psilocybin-assisted psychotherapy for psychiatric and existential distress in patients with life-threatening cancer Participants with cancer-related psychiatric distress who completed a parent randomized... 2020 Long-term within-subjects follow-up analysis n = 15
Enzymatic Synthesis of Psilocybin 2017 Laboratory study

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