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Ketamine: all studies

Page 214 of 449: studies 2,131 to 2,140 of 4,483, newest first. Back to the ketamine overview

Research

A longitudinal case series of IM ketamine for patients with severe and enduring eating disorders and comorbid treatment‐resistant depression

Clinical Case Reports April 4, 2021 Terry Schwartz, Mary Ellen Trunko, David Feifel et al. 52 citations

Abstract Severe and enduring eating disorders (EDs) have the highest mortality rate of all psychiatric illnesses (Arch Gen Psychiatry, 2011, 68 , 724), especially when comorbid with treatment‐resistant depression (TRD) (Psychiatr Res, 2016, 244 , 45). We report on four patients with enduring EDs and TRD treated with repeat ketamine over 12 + months, showing improvement in depression with only...

DOI: 10.1002/ccr3.3869 (opens in new tab) Ketamine Depression economics Eating disorders

(R,S)-Ketamine Promotes Striatal Neurogenesis and Sensorimotor Recovery Through Improving Poststroke Depression–Mediated Decrease in Atrial Natriuretic Peptide

Biological Psychiatry Global Open Science April 1, 2021 Yujing Zhang, Bing Xie, Yin Yuan et al.

Background Poststroke social isolation could worsen poststroke depression and dampen neurogenesis. (R,S)-ketamine has antidepressant and neuroprotective effects; however, its roles and mechanisms in social isolation–mediated depressive-like behaviors and sensorimotor recovery remain unclear. Methods Mice were subjected to transient middle cerebral artery occlusion, and then were pair-housed...

Brief Report: Intranasal Ketamine in Adolescents and Young Adults with Autism Spectrum Disorder-Initial Results of a Randomized, Controlled, Crossover, Pilot Study.

Journal of autism and developmental disorders April 2021 Logan K Wink, Debra L Reisinger, Paul Horn et al.

Dysregulation of glutamate neurotransmission plays a critical role in autism spectrum disorder (ASD) pathophysiology and is a primary target for core deficit research treatment trials. The mechanism of action of ketamine has striking overlap with the theory of ASD as a disorder of synaptic communication and neuronal networks. This two-dose, double-blind, placebo controlled, cross-over pilot...

Is ketamine and lamotrigine interactions responsible for the sub-therapeutic effect of ketamine?

European Psychiatry April 1, 2021 Mahwish Adnan, F. Motiwala, Zeeshan Mansuri et al.

Introduction The immediate antidepressant effect of Ketamine has become a breakthrough in the treatment of depression. Cytochrome CYP3A4 and 2B6 primarily metabolize Ketamine. Objectives The present study explores potential pharmacokinetic and pharmacodynamic interactions of Lamotrigine and Ketamine. Methods A literature search was conducted using (“ketamine” OR “Lamotrigine” AND Interactions...

Is ketamine effective and safe for treatment-resistant depression?

The Journal of family practice April 1, 2021 Amanda Zorn, Sean Linn, Mat Jenkinson et al. 5 citations

MAYBE, but it's too soon to tell. There is limited evidence that ketamine by itself is effective in the very short term. Single-dose intravenous (IV) ketamine is more likely than placebo (odds ratio = 11-13) to produce improvement (> 50%) in standardized depression scores in 1 to 3 days, lasting up to a week. Twice- or thriceweekly IV ketamine improves symptom scores by 20%-25% over 2 weeks...

Long-Term Efficacy of Combination Therapy of Transcranial Magnetic Stimulation with Ketamine for Patients with Treatment-Resistant Depression

CNS Spectrums April 1, 2021 Steve Best, Dan G. Pavel, Natalie Haustrup 1 citation

AbstractBackgroundRepetitive transcranial magnetic stimulation (rTMS) is a safe, effective and non-invasive treatment for many psychiatric illnesses, including treatment-resistant depression (TRD). Ketamine, an NMDA receptor antagonist, is also an effective antidepressant. This retrospective review examined the clinical benefits of combining these two established treatments for patients...

Lasting effects of ketamine and isoflurane administration on anxiety- and panic-like behavioral responses in Wistar rats.

Life Science March 27, 2021 Máira Tereza Talma Chírico, Mariana Reis Guedes, Lucas Gabriel Vieira et al.

In clinical and laboratory practice, the use of anesthetics is essential in order to perform surgeries. Anesthetics, besides causing sedation and muscle relaxation, promote several physiological outcomes, such as psychotomimetic alterations, increased heart rate, and blood pressure. However, studies depicting the behavioral effect induced by ketamine and isoflurane are conflicting. In the...

Subchronic ketamine treatment leads to permanent changes in EEG, cognition and the astrocytic glutamate transporter EAAT2 in mice

Neurobiology of Disease March 22, 2021 Robert E. Featherstone, Yuling Liang, John A. Saunders et al. 75 citations

Ketamine is an NMDA receptor antagonist with psychotomimetic, dissociative, amnestic and euphoric effects. When chronically abused, ketamine users display deficits in cognition and information processing, even following long-term abstinence from the drug. While animal studies have shown evidence of behavioral changes and cognitive deficits that mimic those seen in humans within the period...

Depression treatment response to ketamine: sex-specific role of interleukin-8, but not other inflammatory markers

Translational Psychiatry March 21, 2021 Jennifer L. Kruse, Megha M Vasavada, Richard Olmstead et al. 47 citations

Abstract Inflammation plays a role in depression pathophysiology and treatment response, with effects varying by sex and therapeutic modality. Lower levels of interleukin(IL)-8 predict depression response to antidepressant medication and to electroconvulsive therapy (ECT), although ECT effects are specific to females. Whether IL-8 predicts depression response to ketamine and in a sex-specific...

Synthesizing the Evidence for Ketamine and Esketamine in Treatment-Resistant Depression: An International Expert Opinion on the Available Evidence and Implementation

American Journal of Psychiatry March 17, 2021 Roger S McIntyre, Joshua D. Rosenblat, Charles B. Nemeroff et al. 694 citations

Replicated international studies have underscored the human and societal costs associated with major depressive disorder. Despite the proven efficacy of monoamine-based antidepressants in major depression, the majority of treated individuals fail to achieve full syndromal and functional recovery with the index and subsequent pharmacological treatments. Ketamine and esketamine represent...