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Ketamine: all studies

Page 340 of 449: studies 3,391 to 3,400 of 4,490, newest first. Back to the ketamine overview

Research

Intravenous psilocybin administration attenuates mechanical hypersensitivity in a rat model of chronic pain

bioRxiv (Cold Spring Harbor Laboratory) August 28, 2023 Nicholas Kolbman, Tiecheng Liu, Peter R. Guzzo et al. preprint

Abstract There is a renewed interest in the therapeutic potential of psychedelics, including psilocybin, in treating mental health disorders. However, there are no data on the efficacy of psilocybin in alleviating chronic pain. In this study, we investigated the effect of psilocybin on mechanical hypersensitivity and thermal hyperalgesia in a rat model of formalin-induced chronic pain. Adult...

A Brief Review on the Potential of Psychedelics for Treating Alzheimer’s Disease and Related Depression

International Journal of Molecular Sciences August 7, 2023 Alexander Pilozzi, Simmie Foster, David Mischoulon et al. 16 citations

Alzheimer’s disease (AD), the most common form of senile dementia, is poised to place an even greater societal and healthcare burden as the population ages. With few treatment options for the symptomatic relief of the disease and its unknown etiopathology, more research into AD is urgently needed. Psychedelic drugs target AD-related psychological pathology and symptoms such as depression. Using...

Imprinting: expanding the extra-pharmacological model of psychedelic drug action to incorporate delayed influences of sets and settings

Frontiers in Human Neuroscience July 18, 2023 Nicolas Garel, Julien Thibault Lévesque, Dasha A. Sandra et al. 29 citations

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-resistant depression (TRD), and...

The acute effects of psychoactive drugs on emotional episodic memory encoding, consolidation, and retrieval: A comprehensive review.

Neuroscience & Biobehavioral Reviews July 1, 2023 Manoj K. Doss, Harriet de Wit, David A Gallo 30 citations

Psychoactive drugs modulate learning and emotional processes in ways that could impact their recreational and medical use. Recent work has revealed how drugs impact different stages of processing emotional episodic memories, specifically encoding (forming memories), consolidation (stabilizing memories), and retrieval (accessing memories). Drugs administered before encoding may preferentially...

The need for establishing best practices and gold standards in psychedelic medicine.

Journal of Affective Disorders July 1, 2023 Allison A. Feduccia, Gabby Agin-Liebes, Collin M. Price et al. 38 citations

Psychedelic substances are under investigation in several drug development programs. Controlled clinical trials are providing evidence for safe and effective use of psychedelic therapies for treating mental health conditions. With the anticipated FDA approval of MDMA-assisted therapy for posttraumatic stress disorder in 2023 and psilocybin therapy for depression disorders soon after, now is the...

Molecular mechanisms of rapid-acting antidepressants: New perspectives for developing antidepressants

Pharmacological Research June 26, 2023 Tao Chen, Ling Cheng, Jingwen Ma et al. 48 citations

Major depressive disorder (MDD) is a chronic relapsing psychiatric disorder. Conventional antidepressants usually require several weeks of continuous administration to exert clinically significant therapeutic effects, while about two-thirds of the patients are prone to relapse of symptoms or are completely ineffective in antidepressant treatment. The recent success of the N-methyl-D-aspartic...

Repeated dextromethorphan administration in adolescent rats produces long-lasting behavioral alterations.

Pharmacology, Biochemistry, and Behavior June 1, 2023 M L Shawn Bates, Keith A Trujillo

Initiation of non-medical dextromethorphan (DXM) use often occurs in adolescence, yet little is known about the consequences when use begins during this developmental period. The current experiments examined the acute response and the effects of repeated exposure to DXM in adolescence on behavior in adulthood. We examined locomotor activity, locomotor sensitization, and cognitive function, in...

Classical and non-classical psychedelic drugs induce common network changes in human cortex.

Neuroimage June 1, 2023 Rui Dai, Tony E. Larkin, Zirui Huang et al. 49 citations

The neurobiology of the psychedelic experience is not fully understood. Identifying common brain network changes induced by both classical (i.e., acting at the 5-HT2 receptor) and non-classical psychedelics would provide mechanistic insight into state-specific characteristics. We analyzed whole-brain functional connectivity based on resting-state fMRI data in humans, acquired before and during...

Light Shining within the "Dark" Classics: A Perspective on Entheogenic Compounds.

ACS Chemical Neuroscience May 17, 2023 Khalyd J Clay, Ava E Axelrod, Christina M MacLaughlin et al. 2 citations

Several naturally occurring molecules exhibit unique potential in treating certain elements of psychiatric illnesses and are being actively pursued in therapeutic development. Among these are molecules termed entheogens, a preferred name for plant-derived compounds that alter human consciousness for religious or spiritual purposes, which are especially important to various Indigenous groups,...

Trends in drug use among nightclub and festival attendees in New York City, 2017-2022.

International Journal of Drug Policy May 1, 2023 Joseph J Palamar, Austin Le, Charles M Cleland et al. 41 citations

Drug use is prevalent among people who attend electronic dance music (EDM) parties at nightclubs or festivals. This population can serve as a sentinel population to monitor trends in use of party drugs and new psychoactive substances (NPS) that may diffuse through larger segments of the population. We surveyed adults entering randomly selected EDM parties at nightclubs and dance festivals in...