Objective: In recent years, there has been a renewed interest in investigating the use of classic psychedelics such as psilocybin and lysergic acid diethylamide (LSD) in the treatment of mental disorders and substance use disorders. However, knowledge about the epidemiology of classic psychedelics in the Nordic countries is limited. Methods: We recruited adu...
R) agonist, are reported as effective rapid-acting antidepressants. Both compounds increase glutamate signalling and evoke cortical hyperexcitation. S-ketamine induces neurotoxicity especially in the retrosplenial cortex (Olney's lesions). Whether psilocybin produces similar neurotoxic effects has so far not been investigated. We performed an immunohistochem...
ObjectiveThe objective of this systematic review is to determine the tolerability and safety of psilocybin in a variety of psychiatric and substance-dependence conditions.Data sourcesA systematic review was conducted using Embase, PubMed, Cochrane Central, and Web of Science through September 2023 using the following terminology: "psilocybin" AND "mental-dis...
Serotonergic psychedelics (SP) such as psilocybin, LSD or DMT pose significant potential for development of new strategies in treating neuropsychiatric disorders including major depression disorder, post-traumatic stress disorder and addiction. To bring these substances to clinical application, however, better understanding of the mechanisms behind their eff...
INTRODUCTION: The mechanisms by which the psychedelic drug psilocybin, a novel rapid-acting antidepressant, improves depressive symptoms are still unclear. One candidate mechanism is the impact of the phenomenology of the psychedelic experience, with positive phenomenology hypothesised to be associated with positive long-term outcomes and fearful phenomenolo...
GABAB receptors are the metabotropic GABA neurotransmitter receptors in the central nervous system constituting a fundamental part of the inhibitory modulation mechanism.These receptors are heterodimers composed of GABAB1 and GABAB2 which function is modulated by the potassium channel tetramerization domain proteins (KCTD) from clade F (KCTD16; KCTD12 and KC...
The serotonergic psychedelic psilocybin shows efficacy in treating neuropsychiatric disorders, though the mechanism(s) underlying its therapeutic effects remain unclear. We show that a similar psychedelic tryptamine, N,N-dipropyltryptamine (DPT), completely prevents audiogenic seizures (AGS) in an Fmr1 knockout mouse model of fragile X syndrome at a 10 mg/kg...
Psilocin is the active metabolite of psilocybin a natural material found in several types of fungi. The bioavailability of psilocybin, the prodrug of psilocin, has been reported to be over 60%. However, pharmacokinetics and bioavailability of psilocin mucate has not been reported. This Phase I "First in Man" study of psilocin mucate is designed to determine ...
Psilocybin, a psychoactive alkaloid with hallucinogenic properties, exists in a variety of hallucinogenic mushrooms. As a study tool to imitate psychosis, psilocybin has aroused a lot of interest in the biological community due to its various possible therapeutic benefits. It is also a very popular and widely misused natural hallucinogens with distinct metab...
Abstract Background Psilocybin, the psychoactive compound in magic mushrooms, is increasingly discussed in terms of its psychotherapeutic potential; however, little is known about community attitudes towards psilocybin assisted therapy (PAT). Aims To address the question: What are the public's attitudes towards psilocybin and psilocybin-assisted therapy? And...
High Resolution Image Download MS PowerPoint Slide While correlations between drug-induced cortisol elevation, self-reported anxiety, and treatment outcomes have been reported for human studies during psilocybin-assisted psychotherapy, the mechanistic relationship between psychedelic-associated alterations in plasma glucocorticoid responses and the time cour...
Introduction Despite emerging evidence suggesting the efficacy of psilocybin in the treatment of mood disorders such as depression, the exact mechanisms by which psilocybin is able to elicit these antidepressant effects remains unknown. Objectives As the use of psilocybin as a treatment modality for depression has garnered increasing interest, this study aim...
Background: Psychedelic drug experiences are shaped by current-moment contextual factors, commonly categorized as internal (set) and external (setting). Potential influences of past environments, however, have received little attention. Aims: To investigate how previous environmental stimuli shaped the experiences of patients receiving ketamine for treatment...
BACKGROUND: Pharmacological and nonpharmacological methods of inducing altered states of consciousness (ASCs) are becoming increasingly relevant in the treatment of psychiatric disorders. While comparisons between them are often drawn, to date no study has directly compared their neural correlates. METHODS: To address this knowledge gap, we directly compared...
Post-traumatic stress disorder (PTSD) is a complex disorder expressed as a variety of neurobiological symptoms, including anxiety, re-experiencing, hyperarousal, and avoidance symptoms, along with comorbidities such as anxiety, depression, and increased risk for self-medicating substance abuse. Currently, there are only two approved medications in the United...
Evidence suggests that psilocybin has therapeutic benefit for treating depression. However, there is little consensus regarding the mechanism by which psilocybin elicits antidepressant effects. This systematic review summarizes existing evidence. Ovid MEDLINE, EMBASE, psychINFO, and Web of Science were searched, for both human and animal studies, using a com...
Back to table of contents Previous article Next article Annual MeetingFull AccessExperts Offer Tips on Talking With Patients About PsychedelicsTerri D’ArrigoTerri D’ArrigoSearch for more papers by this authorPublished Online:28 Jun 2023https://doi.org/10.1176/appi.pn.2023.07.7.51AbstractPsychedelics differ from one another in their mechanism of action and po...
