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Depression: all studies

Page 339 of 1,034: studies 3,381 to 3,390 of 10,336, newest first. Back to the depression overview

Research

A systematic review of ketamine and esketamine-induced long-term potentiation and synaptic scaling: Do the molecular and synaptic plasticity effects inform dosing intervals?

Journal of Affective Disorders April 15, 2026 Gia Han Le, Sabrina Wong, Danica E. Johnson et al. 4 citations

Ketamine and esketamine exhibit rapid antidepressant effects in persons with treatment-resistant depression (TRD) and bipolar depression (TRBD). However, the synaptic mechanisms governing dose, frequency, and durability of response remain unclear. This review aims to evaluate the dosing parameters, including minimum dose and optimal dosing intervals, that reliably induce or maintain long-term...

Filtering the noise: a cerebellar-centered framework for understanding and treating mental illness -a paradigm shift in psychiatry

Frontiers in Psychiatry April 13, 2026 Craig F. Ferris

For the past half-century, psychiatric drug development has largely focused on tweaking neurotransmitter receptors and chemical pathways. Yet despite billions of dollars invested and major advances in neuroscience, truly innovative treatments for mental illness remain scarce. Disorders like depression, schizophrenia, and post-traumatic stress disorder (PTSD) continue to be managed with drugs...

DOI: 10.3389/fpsyt.2026.1772265 (opens in new tab) Neuroplasticity Major depressive disorder Mental illness Schizophrenia object-oriented programming +8

[LSD revisited: Mechanisms of action and therapeutic potential in mental health].

L'Encephale April 9, 2026 Amel Bouloufa, Sarah Delcourte, Thomas Delannay et al.

Major depressive disorder (MDD) represents a colossal worldwide burden of health, affecting more than 350 million individuals. While traditional antidepressants with mechanisms of action at the serotonin, dopamine, or norepinephrine pathways are routinely prescribed, approximately one-third of patients fail to achieve adequate remission and develop treatment-resistant depression (TRD). This...

Biomarkers for complex post-traumatic stress disorder: translational and evolutionary perspectives

Frontiers in Psychiatry April 7, 2026 Ravi Philip Rajkumar

Post-traumatic stress disorder (PTSD) is a chronic mental illness that occurs following exposure to traumatic stressors such as combat, disasters, or assault. It is characterized by a triad of reexperiencing of the trauma, avoidance of triggers for such recollections, and increased vigilance towards threats (1). In 1992, Judith Herman described a variant of PTSD that occurred in persons who had...

The feeling of being alive: phenomenology and biology

Phenomenology and the Cognitive Sciences April 6, 2026 Thomas Fuchs 1 citation

The feeling of being alive points to an intricate connection between the organic process of life and foundational subjective experience, or between life and experience ( Leben and Erleben ). Based on this premise, I argue that self-experience cannot be understood as an internal mental space or a “self-model” that could be produced and localized in the brain, but rather that it is a...

Emerging Clinical Applications of Ketamine and Esketamine Across Psychiatric Disorders.

FOCUS: The Journal of Lifelong Learning in Psychiatry April 1, 2026 Rachel Fremont, Marcella Corwin, Greta Kandel et al.

Over the past 25 years, the field of psychiatry has seen a rapid expansion of ketamine treatment services offered for the off-label management of depression, anxiety, and other psychiatric disorders as well as the U.S. Food and Drug Administration's approval of intranasal esketamine, the S-enantiomer of ketamine, for treatment-resistant depression and suicidal depression. In this review, the...

Mindfulness and hope: distinct yet complementary relationships with psychological well-being.

Scientific Reports April 1, 2026 David B. Feldman, Shauna L. Shapiro, Diane E Dreher

Mindfulness and hope are both associated with well-being, yet their orientations—present-focused awareness versus future-directed striving—are seemingly at odds. Moreover, limited research addresses them simultaneously. We investigated the relationship between mindfulness and hope, assessing their associations with psychological well-being. A cross-sectional survey of 145 undergraduates (Mage =...

The effect of dextromethorphan on reward-related behaviors: A systematic review of preclinical and clinical evidence.

Journal of Affective Disorders April 1, 2026 Kayla M Teopiz, Gia Han Le, Sabrina Wong et al.

Extant literature suggests that anhedonia, defined as a loss of the ability to feel pleasure or interest, is subserved by dysregulation of reward processing in the central nervous system. Dextromethorphan (DXM), an uncompetitive N-Methyl-d-Aspartate (NMDA) receptor antagonist and sigma-1 (σ1) receptor agonist, is a glutamatergic modulator with antidepressant properties. The effect of DXM on...

Psilocybin: Chemical Foundations and Emerging Therapeutic Potential.

Mini-Reviews in Medicinal Chemistry March 24, 2026 Shivaputra A Patil, Holly C Hunsberger

Psilocybin, chemically known as (4-phosphoryloxy-N, N-dimethyltryptamine, 4-PODMT), is derived from the psychoactive mushroom genus, Psilocybe. Of the four active metabolites, psilocin readily enters systemic circulation. The psychoactive effects of psilocin are thought to arise through partial agonist effects at the 5-HT2A receptor. Psychedelic drugs, including psilocybin, are having a...

Decoding the molecular network communication mechanism of ketamine's antidepressant effects.

Psychopharmacology March 16, 2026 Ye Li, Qilong Cheng, Guoxin Lin et al.

RATIONALE: Major Depressive Disorder (MDD) is a global public health burden, with traditional monoaminergic antidepressants facing critical limitations including slow onset, adverse side effects, and high rates of treatment resistance (TRD). Ketamine, a rapid-acting agent with sustained antidepressant effects, has revolutionized depression treatment paradigms but challenges conventional...