eNeuro
August 2023
Jenessa N Johnston, Josh Allen, Irene Shkolnikov et al.
Over the past decade, ketamine, an NMDA receptor antagonist, has demonstrated fast-acting antidepressant effects previously unseen with monoaminergic-based therapeutics. Concerns regarding psychotomimetic effects limit the use of ketamine for certain patient populations. Reelin, an extracellular matrix glycoprotein, has shown promise as a putative fast-acting antidepressant in a model of...
Neurobiology of Stress
August 1, 2023
Min Cai, Yingbo Zhu, M. R. Shanley et al.
Repeated, long-term (weeks to months) exposure to standard antidepressant medications is required to achieve treatment efficacy. In contrast, acute ketamine quickly improves mood for an extended time. Recent work implicates that hyperpolarization-activated cyclic nucleotide-gated (HCN) channels are involved in mediating ketamine's antidepressant effects. In this study, we directly targeted HCN...
Journal of Psychiatric Research
August 1, 2023
Igor D. Bandeira, Gustavo C. Leal, Fernanda S. Correia-Melo et al.
There are significantly fewer options for the treatment of bipolar depression than major depressive disorder, with an urgent need for alternative therapies. In this pilot study, we treated six subjects with bipolar disorder types I and II (according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) criteria) who had been in a current depressive episode for at...
Journal of Affective Disorders
August 1, 2023
Mu-Hong Chen, Ya-Mei Bai, Hui-Ju Wu et al.
7 citations
OBJECTIVE Previous studies have found an association between klotho, an anti-aging hormone, and major depressive disorder. However, whether low-dose ketamine infusion alters klotho levels among patients with treatment-resistant depression (TRD) remains unknown. METHODS In total, 48 patients with TRD and strong suicidal ideation were randomly assigned to a single 0.5 mg/kg ketamine or 0.045...
Pharmaceuticals
August 1, 2023
Boney Joseph, Nicolas A. Nunez, Simon Kung et al.
14 citations
Intravenous (IV) ketamine and FDA-approved intranasal (IN) esketamine are increasingly used for treatment-resistant depression (TRD). Preliminary studies have suggested a synergistic effect of ketamine and lamotrigine, although the data are inconclusive. Herein, we report the response to serial ketamine/esketamine treatment among patients with TRD with or without lamotrigine therapy. In this...
EClinicalMedicine
August 1, 2023
Stevan Nikolin, Anthony Rodgers, Andreas Schwaab et al.
166 citations
Background: Intranasal esketamine has received regulatory approvals for the treatment of depression. Recently a large trial of repeated dose racemic ketamine also demonstrated efficacy in severe depression. However, uncertainties remain regarding comparative efficacy, dosage, and the time course of response. Methods: In this systematic review and meta-analysis, we searched Embase, Medline,...
Pharmacopsychiatry
July 30, 2023
Kengo Yonezawa, Hiroyuki Uchida, Taisuke Yatomi et al.
8 citations
Abstract Introduction Predictors of treatment response to intravenous ketamine remain unclear in patients with treatment-resistant depression (TRD); therefore, this study aimed to clarify these predictors using the US National Institutes of Health database of clinical trials. Methods Data from a placebo-controlled, double-blind, randomized controlled trial were used to assess the efficacy of...
Journal of Exploratory Research in Pharmacology
July 25, 2023
Helena van Oers
Major depressive disorder (MDD) is a prevalent and highly debilitating illness that causes significant functional impairment in many patients. Conventional pharmacotherapy, such as monoaminergic antidepressant agents, usually takes several weeks to improve symptomatology and has some adverse side effects, and in many cases, patients show clinical non-response. This has resulted in a quest to...
Translational Psychiatry
July 25, 2023
Li Ma, Long Wang, Youge Qu et al.
Relapse is common in remitted patients with major depressive disorder (MDD). Arketamine, an (R)-enantiomer of ketamine, has persistent prophylactic actions in an inflammatory model of depression. However, the precise mechanisms underlying these prophylactic actions remain unknown. Given the role of the brain-spleen axis in depression, we sought to identify splenic molecular targets that play a...
Psychiatric News
July 24, 2023
Nick Zagorski
Back to table of contents Previous article Next article Annual MeetingFull AccessKetamine Comparable to ECT for Many Patients With Refractory DepressionNick ZagorskiNick ZagorskiSearch for more papers by this authorPublished Online:24 Jul 2023https://doi.org/10.1176/appi.pn.2023.08.7.47AbstractFollowing a presentation of new clinical trial data at the Annual Meeting, some questioned why...