Journal of Psychopharmacology
May 16, 2023
Noah Chisamore, Kevork Danayan, Nelson B Rodrigues et al.
13 citations
Background: Ketamine is an emerging treatment for treatment-resistant depression (TRD) associated with rapid and robust improvements in depressive symptoms and suicidality. However, the efficacy and safety of ketamine in transitional age youth (TAY; age 18–25) populations remains understudied. Methods: In this retrospective analysis, TAY patients (n = 52) receiving ketamine for TRD were matched...
bioRxiv Preprint Server
May 16, 2023
Liya Ma, Nupur Katyare, Kevin Johnston et al.
preprint
Schizophrenia is known as a syndrome of dysconnection among brain regions. As a model for this syndrome, low doses of N-methyl-D-aspartate (NMDA) receptor antagonists, such as ketamine, produce schizophrenia-like symptoms and cognitive deficits in healthy humans and animals. One of such deficits is impaired working memory, a process that engages an extended network of both frontal and parietal...
Revista da Associação Médica Brasileira
May 15, 2023
Idevaldo Floriano, Antônio Silvinato, Wanderley Marques Bernardo
Eligibility criteria were as follows:1. Patients with major depression and suicidal ideation.2. Esketamine treatment plus standard care (antidepressants) compared to placebo plus standard care.3. Outcomes -improvement in the state of depression, evaluated in appropriate scores.4. Included randomized controlled trials (RCTs) and observational studies. 5.No restrictions on publication date and...
Neuropharmacology
May 15, 2023
A Ahtiainen, Iina Annala, Marko Rosenholm et al.
The dissociative anesthetic ketamine regulates cortical activity in a dose-dependent manner. Subanesthetic-dose ketamine has paradoxical excitatory effects which is proposed to facilitate brain-derived neurotrophic factor (BDNF) (a ligand of tropomyosin receptor kinase B, TrkB) signaling, and activation of extracellular signal-regulated kinase 1/2 (ERK1/2). Previous data suggests that ketamine,...
Frontiers in Psychiatry
May 15, 2023
Johanna Louise Keeler, Janet Treasure, Hubertus Himmerich et al.
30 citations
Introduction: A comorbid diagnosis of a depressive disorder is a negative prognostic factor for individuals with AN, and novel treatments are needed to target depressive symptoms in this population. One emerging promising treatment for depressive disorders is ketamine, although there is less research investigating the use of ketamine for alleviating depression in people with AN. Case report: =...
Pharmaceuticals
May 12, 2023
Philip Borsellino, Reese I. Krider, Deanna Chea et al.
Ketamine is a promising alternative to traditional pharmacotherapies for major depressive disorder, treatment-resistant depression, and other psychiatric conditions that heavily contribute to the global disease burden. In contrast to the current standard of care medications for these disorders, ketamine offers rapid onset, enduring clinical efficacy, and unique therapeutic potential for use in...
Frontiers in Psychiatry
May 10, 2023
Guan-Xi Liu, Ze-Lin Li, Su-Yan Lin et al.
Ketamine is a new, fast, and effective antidepression treatment method; however, the possible dissociation effects, sensory changes, abuse risk, and the inability to accurately identify whether patients have a significant response to ketamine limit its clinical use. Further exploration of the antidepressant mechanisms of ketamine will contribute to its safe and practical application....
Cells
May 10, 2023
Mićo Božić, Samo Pirnat, Katja Fink et al.
A single sub-anesthetic dose of ketamine evokes rapid and long-lasting beneficial effects in patients with a major depressive disorder. However, the mechanisms underlying this effect are unknown. It has been proposed that astrocyte dysregulation of extracellular K+ concentration ([K+]o) alters neuronal excitability, thus contributing to depression. We examined how ketamine affects inwardly...
Translational Psychiatry
May 9, 2023
Jared M. Kopelman, T. Keller, Benjamin Panny et al.
57 citations
Intravenous ketamine is posited to rapidly reverse depression by rapidly enhancing neuroplasticity. In human patients, we quantified gray matter microstructural changes on a rapid (24-h) timescale within key regions where neuroplasticity enhancements post-ketamine have been implicated in animal models. In this study, 98 unipolar depressed adults who failed at least one antidepressant medication...
Journal of Affective Disorders
May 7, 2023
Wei Zheng, Yanling Zhou, Chengyu Wang et al.
OBJECTIVES This study aims to investigate the differences in safety and antidepressant effects of multi-infusion ketamine treatment between elderly and young adults with depression. METHODS The safety, antidepressant, and anti-suicidal effects of multi-infusion ketamine were compared between 19 elderly (≥50 years) and 116 younger (<50 years) adults with depression; all were treated with six...