Journal of experimental neuroscience
September 19, 2018
David E. Olson
Neural plasticity-the ability to change and adapt in response to stimuli-is an essential aspect of healthy brain function and, in principle, can be harnessed to promote recovery from a wide variety of brain disorders. Many neuropsychiatric diseases including mood, anxiety, and substance use disorders arise from an inability to weaken and/or strengthen pathologic and beneficial circuits,...
Neuropsychopharmacology
September 6, 2018
Haley L Goodwill, Gabriela Manzano-Nieves, Meghan Gallo et al.
Childhood trauma and neglect influence emotional development and increase the risk for and severity of mental illness. Women have a heightened susceptibility to the effects of early life stress (ELS) and are twice as likely as men to develop debilitating, stress-associated disorders later in life, such as major depressive disorder (MDD). Until now, mouse models of depression have been largely...
Neuropharmacology
September 1, 2018
Dylan Chou, Hsien-Yu Peng, Tzer-Bin Lin et al.
It has been widely reported that ketamine rescues chronic stress-induced depression-like behavior, but the underlying cellular mechanisms of the rapid antidepressant actions of ketamine remain largely unclear. Both male and female Sprague-Dawley rats were used and received modified learned helplessness paradigm to induce depression-like behavior. Depression-like behavior was assayed and...
Journal of Neurochemistry
September 2018
Pravin K Mishra, Arvind Kumar, Kevin L. Behar et al.
Depression is one of the most debilitating neuropsychiatric disorders. Most of the current antidepressants have long remission time and low recovery rate. This study explores the impact of ketamine on neuronal and astroglial metabolic activity in prefrontal cortex in a social defeat (SD) model of depression. C57BL/6 mice were subjected to a social defeat paradigm for 5 min a day for 10...
Journal of Child and Adolescent Psychopharmacology
September 2018
Kathryn R. Cullen, Palistha Amatya, Mark G Roback et al.
Novel interventions for treatment-resistant depression (TRD) in adolescents are urgently needed. Ketamine has been studied in adults with TRD, but little information is available for adolescents. This study investigated efficacy and tolerability of intravenous ketamine in adolescents with TRD, and explored clinical response predictors. Adolescents, 12-18 years of age, with TRD (failure to...
Journal of Psychiatric Research
September 1, 2018
Li Ren, Jie Deng, S. Min et al.
48 citations
Electroconvulsive therapy (ECT) is one of the most effective treatments for depressive disorder. Sub-anesthetic dose of ketamine exerts a rapid and robust antidepressive effect. However, it is still unclear whether ketamine usage in ECT is efficacious as an antidepressant. We aimed to conduct a systematic review and meta-analysis on the effects of ketamine in ECT among patients with depressive...
Medicine
September 1, 2018
Fernanda S. Correia-Melo, Gustavo C. Leal, Michelle S. Carvalho et al.
61 citations
INTRODUCTION: The use of ketamine as an option in the treatment of depressive disorder is growing rapidly, supported by numerous clinical trials attesting its efficacy and safety. Esketamine, the S (+) enantiomer of ketamine, is the most widely used form in the anesthetic environment in some countries, and new studies have shown that it may also be effective in depression and with better...
Journal of Affective Disorders
August 15, 2018
Patricio Riva-Posse, Collin Reiff, Johnathan A Edwards et al.
The dissociative anesthetic agent ketamine is increasingly being utilized to treat depression, despite not having FDA (Food and Drug Administration) approval for this indication. There are many questions about the potential risks of this treatment and hence the proper setting and degree of monitoring required to ensure patient safety. There is limited data about the cardiovascular safety of...
Journal of Affective Disorders
August 1, 2018
Somaye Arabzadeh, Elham Hakkikazazi, Nazila Shahmansouri et al.
Major depressive disorder (MDD) exerts a high health and financial burden on society. The conventional pharmacotherapies for MDD are partially effective and the response to medication often starts with some delay. There are recent reports of antidepressant effects for oral ketamine. We employed a double-blind controlled trial to examine the time course of the therapeutic effect of ketamine when...
Neuropsychopharmacology
August 2018
Jennifer W. Evans, Níall Lally, Li An et al.
The glutamatergic modulator ketamine has striking and rapid antidepressant effects in major depressive disorder (MDD), but its mechanism of action remains unknown. Proton magnetic resonance spectroscopy (1H-MRS) is the only non-invasive method able to directly measure glutamate levels in vivo; in particular, glutamate and glutamine metabolite concentrations are separable by 1H-MRS at 7T. This...