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Serotonin: all studies

Page 177 of 400: studies 1,761 to 1,770 of 3,999, newest first. Back to the serotonin overview

Research

Investigation of Potential Therapeutic Effects of New Rapid-Acting Antidepressant Drugs (RAADs) Using Stress-Based Models of Depression

Biomolecules August 24, 2026 Agnieszka Pałucha-Poniewiera

The use of animal models to study mental illnesses, such as depression, requires proper standardization and extensive expertise. Achieving good construct, face, and predictive validity in depression models is quite challenging. Currently, only a few environmental models, mostly based on chronic stress, and a limited number of genetic models fulfill these criteria. In the quest for new...

The Strangest Drug Ever Studied: The Chemical Structure, History, and Enduring, Conjecturing Mystery of DMT

Zenodo (CERN European Organization for Nuclear Research) August 23, 2026 Benjamin Pham preprint

This paper examines dimethyltryptamine (DMT) as one of the most unusual and scientifically provocative psychoactive substances ever studied. It traces DMT’s history from Indigenous Amazonian ayahuasca traditions and Richard Spruce’s nineteenth-century observations to twentieth-century psychedelic science, countercultural fascination, prohibition, and the modern revival of clinical research. The...

Psilocybin lengthens hippocampal sharp wave ripples

bioRxiv August 20, 2026 Ilknur Kayikcioglu Bozkir, Ryan Lashin, Tiecheng Liu et al. preprint

Psilocybin is a psychedelic which has been shown to induce neural plasticity through activation of intracellular serotonergic 5-HT2A receptors. It also produces brain-wide changes in structural and functional connectivity and holds promise as a therapeutic compound for treating anxiety and depression. Despite links between psilocybin-induced plasticity, the psychedelic experience, and reduction...

The Use of Psilocybin for Managing Refractory Behavioral Health Conditions: A Narrative Review

Lynchburg Journal of Medical Science August 20, 2026 Rachel N Clark

The purpose of this review is to evaluate the possible benefits of using psilocybin (C12H17N2O4P), a naturally occurring psychoactive compound found in certain species of mushrooms, in the treatment of multiple forms of mental illness and substance use disorders, either as monotherapy or in conjunction with traditional psychiatric medications. The compound has high affinity for several...

Evaluation of the therapeutic efficacy of the dextromethorphan–bupropion combination and its mediating pathways in a mouse model of major depressive disorder

Frontiers in Pharmacology August 19, 2026 İlay Buran Kavuran, Ebru Önalan, Zeliha İrem Türk et al.

Background Major depressive disorder (MDD) is associated with multiple pathophysiological mechanisms, including dysregulation of monoaminergic systems, excessive glutamatergic activity, reduced neurotrophic support, inflammation, and oxidative stress. The combination of dextromethorphan, an N-methyl-D-aspartate (NMDA) receptor antagonist and sigma-1 receptor agonist, with bupropion, a...

Experience, plasticity, and context: Beyond single-level models of antidepressant action.

Journal of Psychopharmacology August 17, 2026 David Eckert

The re-emergence of serotonergic psychedelics has introduced rapid-acting antidepressant effects and has been widely described as a paradigmatic shift in depression treatment. Recently, there has been intense debate about whether the acute subjective effects of psychedelics are necessary for their therapeutic efficacy or merely byproducts of underlying neuroplastic processes. Recent...

[(Es)ketamine: practice update].

Der Nervenarzt August 17, 2026 Stefan Vestring, Katharina Domschke, Claus Normann

Ketamine has been established as an anesthetic agent for decades. Around the turn of the millennium initial clinical studies demonstrated that subanesthetic doses of ketamine can exert antidepressant effects in treatment-resistant depression. These findings established the concept of an effective glutamatergic antidepressant treatment and initiated a paradigm shift. For many years, intravenous...

Persisting perceptual abnormalities in psychedelic users are associated with conditioned hallucinations and impaired sensory processing

bioRxiv (Cold Spring Harbor Laboratory) August 16, 2026 Maximillian Greenwald, Peter Thestrup Waade, Eren Kafadar et al. preprint

Abstract Serotonergic psychedelics (SP) are increasingly used in clinical research and naturalistic settings, but their psychotic-like side effects, including persisting perceptual abnormalities (PPAs), are poorly understood. Psychosis-associated hallucinations are associated with susceptibility to conditioned hallucinations and computationally-estimated overweighting of perceptual...

Blood biomarker changes in response to low-dose oral ketamine treatment in adults with major depressive disorder (MDD) and post-traumatic stress disorder (PTSD)

medRxiv August 14, 2026 Annette M Braxton, Christina Driver, Daniel F. Hermens et al. preprint

Abstract Major depressive disorder (MDD) and post-traumatic stress disorder (PTSD) are prevalent, chronic, and disabling mental health conditions which are difficult to treat. Ketamine has demonstrated effect for improving depression and PTSD symptoms independently but reports often overlook focused comorbid improvement of these symptoms within individuals. To address this, we assessed...

Novel Tetrahydropyridinyl-6,6-Bicyclic Compounds as 5‑HT2A Receptor Agonists for Treating Depression, Anxiety, Substance Abuse, and Headaches.

ACS Medicinal Chemistry Letters August 13, 2026 Ram W. Sabnis, Anika R. Sabnis

Provided herein are novel tetrahydropyridinyl-6,6-bicyclic compounds as 5-HT2A receptor agonists, pharmaceutical compositions, use of such compounds in treating depression, anxiety, substance abuse and headaches, and processes for preparing such compounds.