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...
Nigerian Medical Journal
May 5, 2023
C. Uruaka, O. Georgewill, OU Georgewill
Background Schizophrenia is a chronic neuropsychiatric disease characterized by neurochemical, neurotrophic, and oxido-inflammatory derangements. Geraniol is a neuroactive acyclic isoprenoid monoterpene, which has been reported to demonstrate depressant and antioxidant/anti-inflammatory activities. Herein, we investigated whether geraniol could prevent or reverse ketamine-induced...
European Neuropsychopharmacology
May 4, 2023
Stefania Chiappini, Giacomo D’andrea, Sergio De Filippis et al.
48 citations
Esketamine, the S-enantiomer of ketamine, has recently emerged as a therapy for treatment-resistant depression (TRD), showing both rapid antidepressant action and good efficacy and high safety. It is also indicated for the acute short-term treatment of psychiatric emergency due to major depressive disorder (MDD) and for depressive symptoms in adults with MDD with acute suicidal...
The Brown University Psychopharmacology Update
May 3, 2023
symptoms of depression and anxiety and evaluated socio-occupational functioning. Twenty-two participants were randomized to treatment. The infusions were well-tolerated, with no serious adverse events. Most of the findings were suggestive but not statistically significant. Post-infusion scores on the primary outcome decreased more in the ketamine group than in the midazolam group. The greatest...
Life Science
May 1, 2023
Miroslav Adzic, Iva Lukic, Milos Mitic et al.
Major depressive disorder (MDD) afflicts approximately 5 % of the world population, and about 30-50 % of patients who receive classical antidepressant medications do not achieve complete remission (treatment resistant depressive patients). Emerging evidence suggests that targeting opioid receptors mu (MOP), kappa (KOP), delta (DOP), and the nociceptin/orphanin FQ receptor (NOP) may yield...
Journal of Affective Disorders
May 1, 2023
Tuuli M. Hietamies, L. Mcinnes, A. Klise et al.
INTRODUCTION Ketamine intravenous therapy (KIT) appears effective for treating depression in controlled trials testing a short series of infusions. A rapidly proliferating number of clinics offer KIT for depression and anxiety, using protocols without a strong evidence basis. Controlled comparison of mood and anxiety from real-world KIT clinics, and the stability of outcomes, is lacking....
Experimental and Clinical Psychopharmacology
May 1, 2023
Jesús Herrera-Imbroda
Treatment-resistant depression (TRD) is a major public health problem worldwide. There are currently five strategies for its treatment: optimization, change, combination, augmentation, and somatic therapies. However, many of these therapies are not fully effective, are not accessible, or have a significant number of side effects. Esketamine nasal spray has recently been approved, in combination...
European Neuropsychopharmacology
May 2023
Giacomo d'Andrea, Mauro Pettorruso, Giorgio Di Lorenzo et al.
Ketamine and esketamine, the S-enantiomer of the racemic mixture, have recently generated considerable interest as potential therapeutic agents for Treatment-Resistant Depression (TRD), a complex disorder that includes various psychopathological dimensions and distinct clinical profiles (e.g., comorbid personality disorder, bipolar spectrum, dysthymic disorder). This perspective article...