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Serotonin: all studies

Page 120 of 400: studies 1,191 to 1,200 of 3,999, newest first. Back to the serotonin overview

Research

Computational Analysis of Psilocybin Effects on Three-Choice Touchscreen Reversal Learning in Rats: A Pilot Study

Psychedelic Medicine February 3, 2026 Anton T. Gregersen, Tobias P. Whelan, Caroline T. Golden et al. 2 citations

Introduction: Cognitive flexibility is essential for behavioral adaptation in response to environmental changes and is impaired in various neuropsychiatric disorders. The serotonergic psychedelic psilocybin has shown potential in enhancing cognitive flexibility, although with mixed results. In this study, we investigated the effects of psilocybin on cognitive flexibility in rats using a...

Spatiotemporal mapping of brain organisation following the administration of 2C-B and psilocybin

Molecular Psychiatry February 3, 2026 Pablo Mallaroni, S. Parker Singleton, Natasha L. Mason et al.

As psychedelic-assisted psychotherapy gains momentum, clinical investigation of next-generation psychedelics may lead to novel compounds tailored for specific populations. 2,5-dimethoxy-4-bromophenethylamine (2C-B) is a psychedelic phenethylamine reported to produce less dysphoria and subjective impairment than the psychedelic tryptamine psilocybin. Despite its popularity among recreational...

Ayahuasca modulation of traumatic-like fear memories requires infralimbic cortex BDNF-dependent mechanisms in rats.

European Neuropsychopharmacology February 1, 2026 Isabel Werle, Francisco S Guimarães, Rafael G. Dos Santos et al.

Rodent studies have shown that psychedelic drugs can enhance fear extinction. However, investigations to date have relied on normative aversive conditioning procedures, which limit their relevance to trauma-related memories, as these tend to be overgeneralized and resistant to extinction. Fear extinction depends on activity and plasticity within the infralimbic (IL) region of the medial...

The Use of Psilocybin in the Treatment of Depressive Disorders: A Narrative Review

Cureus January 31, 2026 Lukasz Siwek, Marta Nowocien, Barbara Balajewicz et al.

Psilocybin is a psychoactive chemical compound that exerts its effects through the activation of serotonergic receptors. It occurs naturally in mushrooms of the genus Psilocybe. Despite its potential medical applications, this substance is regarded as a drug with no recognized medical use. Depression constitutes a psychiatric disorder of substantial global burden, affecting millions of...

Psilocybin-Induced Neuroplasticity and Sustained Antidepressant Effects

Quality in Sport January 31, 2026 Anna Maria Komarczewska, Filip Matusiak, Klaudia Brzoza et al.

Psilocybin-assisted interventions have shown rapid reductions in depressive symptoms in controlled clinical settings, raising questions about biological mechanisms supporting durability beyond the acute drug effect. [5,7] Mechanistic accounts increasingly focus on neuroplasticity as a candidate pathway linking transient serotonergic receptor activation to longer-lasting psychological and...

Design, Synthesis, and Pharmacokinetic Profiling of Fluorinated Reversible N -Alkyl Carbamate Derivatives of Psilocin for Sub-Hallucinogenic Brain Exposure

Journal of Medicinal Chemistry January 26, 2026 Marco Banzato, Martina Colognesi, Lorena Lucatello et al.

Psilocybin, the phosphorylated prodrug of psilocin, holds therapeutic promise across a range of neuropsychiatric conditions, yet its clinical utility is constrained by acute psychoactive effects. Here, we report the rational design, synthesis, and evaluation of a focused library of fluorinated reversible N-alkyl carbamate derivatives of psilocin aimed at reducing acute psilocin exposure and...

DOI: 10.1021/acs.jmedchem.5c01797 (opens in new tab) Serotonergic Carbamate Prodrug Polar surface area +11

THE PSYCHEDELIC RENAISSANCE: A SYSTEMATIC REVIEW OF PSILOCYBIN AND LSD IN THE TREATMENT OF PSYCHIATRIC DISORDERS

International Journal of Innovative Technologies in Social Science January 23, 2026 Jakub Klepacz, Radosław Swędrak, Marzena Swojnóg et al.

The escalating global burden of mental health disorders, coupled with the stagnation of innovation in traditional monoaminergic pharmacotherapy (e.g., SSRIs), has precipitated a critical need for novel therapeutic paradigms. This article presents a comprehensive systematic review of the so-called "Psychedelic Renaissance," focusing on the clinical resurgence of classical serotonergic...

Effects of psilocybin and chronic mild stress on microglial activation in rat spinal cord: an ex vivo analysis

Pharmacological Reports January 20, 2026 Piotr Olejnik, Katarzyna Kamińska, Krystyna Gołembiowska et al.

INTRODUCTION: Psilocybin, a classic serotonergic psychedelic, has antidepressant, anxiolytic, anti-inflammatory, and analgesic properties. However, the immunomodulatory effects of psilocybin within the central nervous system, particularly on microglial activation, remain poorly understood. Therefore, this study aimed to investigate the effects of psilocybin on microglial activation markers and...

Psilocybin rapidly, but not immediately, reverses reward learning deficits in a durable manner in an inflammatory rat model of depressive symptoms

bioRxiv (Cold Spring Harbor Laboratory) January 15, 2026 Justyna K. Hinchcliffe, Christopher W. Thomas, Gary Gilmour et al. preprint

Abstract The serotonergic psychedelic, psilocybin, shows potential for rapid and sustained antidepressant effects but the underlying mechanisms remain unknown. Using a chronic interferon-alpha–induced rat model of depression, we show acute psilocybin (0.3 mg/kg) reverses impaired reward-induced biases within 24hrs, with effects enduring for at least 7 days. This suggests psilocybin can restore...

The entactogen MDMA (3,4-methylenedioxymethamphetamine, "Ecstasy") disrupts helping behaviour while reinforcing electrophysiological indicators of potentially associated synaptic plasticity in male Sprague-Dawley rats.

Frontiers in Pharmacology 2026 Patricio Sáez-briones, Amanda Silva-Rodríguez, Michelle Morales-Vidal et al.

In humans, empathy is expressed through various prosocial behaviours between individuals that may be enhanced after intake of the synthetic entactogen MDMA (3,4-methylenedioxymethamphetamine, "Ecstasy") as the behavioural expression of the so-called entactogenic syndrome. Rodents may also exhibit empathy-like behaviours, such as social interaction and helping behaviour. In this regard, while...

DOI: 10.3389/fphar.2026.1779772 (opens in new tab) Full text (opens in new tab) Serotonin 3,4-methylenedioxymethamphetamine Helping behaviour Oxytocin