Skip to content

Leah M. Mayo

11 papers in the library · 75 citations · publishing 2023-2026

Papers

Sort Most recent Most cited

A scoping review of mystical-type experiences and mood symptom outcomes in psychedelic therapy clinical trials: comparing life-threatening disease and depressive populations

Therapeutic Advances in Psychopharmacology March 1, 2026 Ana Deutsch, Luis E. Contreras, Sarah Kratina et al.

Background: Psychedelic therapies are gaining attention as tools to alleviate anxiety and depression across various clinical populations. However, the mechanisms behind psychedelics' therapeutic efficacy and the potential differences in how patients with certain diagnoses experience their subjective effects remain unknown. One commonly suggested mediator of positive outcomes across psychedelics...

The effect of methamphetamine and 3,4-methylenedioxymethamphetamine on peripheral endocannabinoid concentrations: a study in healthy adults.

Psychopharmacology February 1, 2026 Ana Deutsch, Connor J Haggarty, Gavin N Petrie et al. 1 citation

Stimulant drugs such as methamphetamine (MA) and 3,4-methylenedioxymethamphetamine (MDMA) can impact neurobiological systems implicated in stress, reward processing, and drug use. Although recent preclinical evidence implicates the endocannabinoid (eCB) system in these processes, little is known about the acute effects of stimulants on eCB levels in humans. The aim of the present study was to...

Exploring Access to Psychedelics Among Canadian Veterans: Pathways, Barriers, and Perceptions

Psychedelic Medicine December 17, 2025 Luis E. Contreras, Grace M Elliott, Francesco Kment et al.

Introduction:Psychedelic-assisted therapies have recently gained attention as potential novel treatments for various mental health conditions. In Canada, there has been particular interest from the veteran communities regarding the potential therapeutic impact of psychedelics. However, legal access remains limited in Canada, leading some veterans to explore alternative pathways. Here, we aimed...

Efficacy, all-cause discontinuation, and safety of serotonergic psychedelics and MDMA to treat mental disorders: A living systematic review with meta-analysis.

Eur Neuropsychopharmacol November 7, 2025 Mikkel Højlund, Helin Y. Kafali, Begüm Kırmızı et al. 12 citations

Efficacy, all-cause discontinuation, and safety of serotonergic psychedelics and MDMA to treat mental disorders: A living systematic review with meta-analysis.

Role of ketamine in the treatment of substance use disorders: A systematic review.

Journal of Substance Use and Addiction Treatment August 1, 2025 Reinhard Janssen-Aguilar, Shakila Meshkat, Ilya Demchenko et al. 12 citations

Substance Use Disorders (SUDs) involve diminished control, risky use, impaired social interactions, and physical dependence. Despite their global prevalence and burden, treatment options remain limited. Ketamine (KET), an NMDA receptor antagonist, may aid SUD treatment by modulating glutamatergic neurotransmission. This systematic review evaluates KET's role in SUD treatment. This review...

Examining the potential of psilocybin and 5-MeO-DMT as therapeutics for traumatic brain injury.

Progress in neuro-psychopharmacology & biological psychiatry July 14, 2025 Zoe Plummer, Josh Allen, Justin Brand et al. 4 citations

Traumatic brain injury (TBI) is a significant global health challenge, with limited effective treatments for its acute and chronic consequences. TBI is characterized by neuroinflammation, oxidative stress, impaired neuroplasticity, imbalances in neurotransmission, and cell death - factors that contribute to the development of neurological and psychiatric disorders. Emerging evidence suggests...

Efficacy and safety of psilocybin for the treatment of substance use disorders: A systematic review.

Neuroscience and Biobehavioral Reviews June 1, 2025 Shakila Meshkat, Gunjan Malik, Richard J. Zeifman et al. 11 citations

Psilocybin, a serotonergic psychedelic, may have therapeutic benefits for Substance Use Disorders (SUDs), but its overall efficacy and safety remain uncertain. This systematic review assessed the safety and efficacy of psilocybin for SUDs through a systematic database search conducted via OVID on May 22, 2024, and summarized 26 ongoing clinical trials registered on clinicaltrials.gov. Among 16...

Therapeutic Effects of Low-Dose Psilocybin in Depression and Other Mental Disorders: A Systematic Review

Psychedelic Medicine April 28, 2025 Shakila Meshkat, Howell Fang, Rachel Sousa-Ho et al.

Introduction: High-dose psilocybin has shown potential in treating various psychiatric disorders, but its perceptual and cognitive effects, along with the risk of adverse events, highlight the need for alternative treatment approaches. One such approach is the use of low-dose psilocybin, which does not significantly alter cognition or perception. While low-dose psilocybin has garnered growing...

Down the Rabbit Hole: A Large-Scale Survey of Psychedelic Users’ Patterns of Use and Perceived Effects

Journal of Psychoactive Drugs January 29, 2025 Carrie Cuttler, Amanda Stueber, Jonathan J. Simone et al. 3 citations

The ever-changing landscape surrounding legality and accessibility of psychedelics and their increasing popularity make it imperative to better understand the nature of psychedelic use by the general population. To this end, 1,486 eligible respondents (Mage = 29.58, 67.1% male) residing in the United States completed an online survey designed to assess the types of psychedelics used, methods of...

Impact of psilocybin on cognitive function: A systematic review

Psychiatry and Clinical Neurosciences October 1, 2024 Shakila Meshkat, Fatemeh Gholaminezhad, Eric Vermetten et al. 24 citations

Psilocybin is a classic psychedelic with demonstrated preliminary clinical efficacy in a range of psychiatric disorders. Evaluating the impact of psilocybin on cognitive function is essential to unravel its potential benefits and risks. In this systematic review, we assessed psilocybin's effect on cognitive function through a comprehensive search of electronic databases from inception to...

Challenges and considerations for treating PTSD with medicinal cannabis: the Australian clinician's perspective.

Expert Review of Clinical Pharmacology 2023 Luke J. Ney, Wole Akosile, Chris Davey et al. 8 citations

Preclinical and experimental research have provided promising evidence that medicinal cannabis may be efficacious in the treatment of posttraumatic stress disorder (PTSD). However, implementation of medicinal cannabis into routine clinical therapies may not be straightforward. In this review, we describe some of the clinical, practical, and safety challenges that must be addressed for...