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Ketamine: all studies

Page 396 of 448: studies 3,951 to 3,960 of 4,475, newest first. Back to the ketamine overview

Research

Pharmacotherapies Targeting GABA-Glutamate Neurotransmission for Treatment-Resistant Depression.

Pharmaceuticals November 7, 2023 Courtney M Vecera, Alan C. Courtes, Gregory Jones et al.

Treatment-resistant depression (TRD) is a term used to describe a particular type of major depressive disorder (MDD). There is no consensus about what defines TRD, with various studies describing between 1 and 4 failures of antidepressant therapies, with or without electroconvulsive therapy (ECT). That is why TRD is such a growing concern among clinicians and researchers, and it explains the...

Psilocybin does not induce the vulnerability marker HSP70 in neurons susceptible to Olney’s lesions

European Archives of Psychiatry and Clinical Neuroscience November 7, 2023 Ana-Maria Iorgu, Andrei-Nicolae Vasilescu, Natascha Pfeiffer et al. 2 citations

Abstract S-ketamine, a N-methyl-D-aspartate receptor (NMDAR) antagonist, and psilocybin, a 5-hydroxy-tryptamine (serotonin) 2A receptor (5-HT 2A 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...

Commentary on Keyes and Patrick: Changes in psychedelic use in the United States may require changes in our narrative of psychedelic harms

Addiction November 2, 2023 Celia J. A. Morgan 1 citation

Given the shifting public perception of psilocybin and associated legal changes, the increase in use observed by Keyes and Patrick is not surprising. The conclusion that this is a rising health concern is not justified by the data, particularly as in this sample non-lysergic acid diethylamide hallucinogen use seems to have increased in a white, educated, relatively higher socio-economic status...

Addiction specialists' attitudes toward psychedelics: A National Survey.

American Journal on Addictions November 1, 2023 Amanda Kim, Joji Suzuki 15 citations

In recent years, there has been accelerating scientific and public interest in the use of psychedelics to treat mental health disorders. Our study's objective was to assess the attitudes of addiction specialists regarding therapeutic psychedelics. Our study utilized an anonymous online survey to assess the opinions of 145 addiction specialists regarding the therapeutic promise, potential risks,...

Criticality of resting-state EEG predicts perturbational complexity and level of consciousness during anesthesia.

bioRxiv : the preprint server for biology October 31, 2023 Charlotte Maschke, Jordan O'Byrne, Michele Angelo Colombo et al. 7 citations preprint

Consciousness has been proposed to be supported by electrophysiological patterns poised at criticality, a dynamical regime which exhibits adaptive computational properties, maximally complex patterns and divergent sensitivity to perturbation. Here, we investigated dynamical properties of the resting-state electroencephalogram of healthy subjects undergoing general anesthesia with propofol,...

Effects of a dissociative drug on fronto-limbic resting-state functional connectivity in individuals with posttraumatic stress disorder: a randomized controlled pilot study.

Psychopharmacology October 23, 2023 Sarah K. Danböck, Or Duek, Ziv Ben-Zion et al. 6 citations

Abstract: Rationale: A subanesthetic dose of ketamine, a non-competitive N-methyl-D-aspartate glutamate receptor (NMDAR) antagonist, elicits dissociation in individuals with posttraumatic stress disorder (PTSD), who also often suffer from chronic dissociative symptoms in daily life. These debilitating symptoms have not only been linked to worse PTSD trajectories, but also to increased...

The suitability of zebrafish (danio rerio) as an optimal organism to further investigate the associated schizophrenia-like phenotype

European Psychiatry October 23, 2023 I. B. Nita, O. D. Ilie, A. S. Ciobica et al.

Introduction Zebrafish (Danio rerio) has evolved over the years as a preferred organism due to its vast repertoire in research fields that mimic a targeted phenotype, particularly behavioral typologies and specific attributes comparable to murine models and relatively high homology with humans. Considering this consideration, different pharmacological treatments have been tested and proven that...

The PrLGlu→avBNSTGABA circuit rapidly modulates depression-like behaviors in male mice.

iScience October 20, 2023 Jie-Ying Chen, Ke Wu, Miao-Miao Guo et al.

Depression is a global disease with a high prevalence. Here, we examine the role of the circuit from prelimbic mPFC (PrL) to the anterior ventral bed nucleus of the stria terminalis (avBNST) in depression-like mice through behavioral tests, immunofluorescence, chemogenetics, optogenetics, pharmacology, and fiber photometry. Mice exposed to chronic restraint stress with individual housing...

Editorial: Psychedelics as treatments for substance use disorders: exploring therapeutic potential, risks, underlying mechanisms of action, and implementation challenges

Frontiers in Psychiatry October 19, 2023 Brian S. Barnett, Anahita Bassir Nia, Nathan Sackett et al. 1 citation

Disclosures of Financial or Other Potential Conflicts of Interest: Dr. Barnett holds stock options in CB Therapeutics. He also serves on advisory boards for CB Therapeutics and Compass Pathways. He receives monetary compensation from DynaMed Plus (EBSCO Industries, Inc.) for editorial work and from Janssen Pharmaceuticals for consulting services. Dr. Barnett has received research funding from...

Novel treatments for anorexia nervosa: Insights from neuroplasticity research

European Eating Disorders Review October 12, 2023 Johanna Louise Keeler, Carol Kan, Janet Treasure et al. 36 citations

Abstract Objective Treatment for anorexia nervosa (AN) remains challenging; there are no approved psychopharmacological interventions and psychotherapeutic strategies have variable efficacy. The investigation of evidence‐based treatments has so far been compounded by an underdeveloped understanding into the neurobiological changes associated with the acute stages of AN. There is converging...

DOI: 10.1002/erv.3039 (opens in new tab) Neuroplasticity Anorexia nervosa Eating disorders Psychotherapist +1