Skip to content

Ketamine research published in 2021

Page 2 of 10: studies 21 to 40 of 184, newest first. Back to the ketamine overview

Studies

Synergistic Effect of Ketamine and Buprenorphine Observed in the Treatment of Buprenorphine Precipitated Opioid Withdrawal in a Patient With Fentanyl Use.

Journal of Addiction Medicine November 16, 2021 Christian Hailozian, Joshua Luftig, Amy Liang et al.

Optimal treatment of buprenorphine precipitated opioid withdrawal (BPOW) is unclear. Full agonist treatment of BPOW is limited by buprenorphine's high-affinity blockade at mu-opioid receptors (μORs). Buprenorphine's partial agonism (low intrinsic efficacy) at μORs can limit the effectiveness of even massive doses once BPOW has begun. Adjunct medications, such as clonidine, are rarely effective...

Review of Ketamine as a Rapid Antidepressant for Treatment-Resistant Depression

Scholarly Research In Progress November 8, 2021 Sankung X. Darboe, Peter J. Koszuta, Paul W. Lee et al.

The anesthetic agent ketamine has been under investigation as a potential antidepressant for two decades. Animal studies and subsequent randomized control trials for patients have provided extensive evidence of ketamine’s rapid antidepressant outcomes both structurally at the receptor level as well as behaviorally. A review of current literature hones in on the putative rapid mechanisms of...

Ketamine—New Possibilities in the Treatment of Depression: A Narrative Review

Life November 5, 2021 Mateusz Kowalczyk, Edward Kowalczyk, Paweł Kwiatkowski et al. 16 citations

The SARS-CoV-2 coronavirus epidemic has led to an increase in the number of people with depression. Symptoms related to the mental sphere (mainly depression and anxiety) may be experienced by one third of the worldwide population. This entails the need for the effective and rapid treatment of depressive episodes. An effective drug seems to be s-ketamine, which was accepted in March 2019 by the...

DOI: 10.3390/life11111186 (opens in new tab) Anxiety Ketamine Depression economics Antidepressant +4

Longer course of esketamine nasal spray benefits initial treatment nonresponders

The Brown University Psychopharmacology Update November 1, 2021

Extending adjunctive treatment with esketamine nasal spray over 4 weeks showed benefit in a group of patients with treatment‐resistant depression who did not respond within the first week of treatment, a post hoc analysis of two Phase 3 studies has found. The results suggest that a full 4‐week induction of esketamine with an oral antidepressant may optimize treatment outcomes, the researchers...

On no man's land: Subjective experiences during unresponsive and responsive sedative states induced by four different anesthetic agents.

Consciousness and Cognition November 1, 2021 Linda Radek, Lauri Koskinen, Nils Sandman et al.

To understand how anesthetics with different molecular mechanisms affect consciousness, we explored subjective experiences recalled after responsive and unresponsive sedation induced with equisedative doses of dexmedetomidine, propofol, sevoflurane, and S-ketamine in healthy male participants (N = 140). The anesthetics were administered in experimental setting using target-controlled infusion...

Targeting inflammation in depression: Ketamine as an anti-inflammatory antidepressant in psychiatric emergency

Brain, Behavior, & Immunity - Health November 1, 2021 N. Nikkheslat 67 citations

Major depressive disorder (MDD) is a common psychiatric disorder with multifactorial aetiology and complex pathophysiology. Despite availability of various pharmacological and non-pharmacological therapeutic strategies, treatment resistant depression (TRD) remains a significant challenge with specific concern for those patients with severe depressive symptoms in particular suicidal ideations...

Commentary: Treatment-resistant Depression: Considerations Related to ECT and Ketamine

Journal of Psychiatric Practice November 1, 2021 Amir Garakani

Treatment-resistant depression (TRD) may be responsive to interventions beyond antidepressants including brain stimulation such as electroconvulsive therapy (ECT) or to ketamine or esketamine, the latter of which is approved for TRD in an intranasal form. The 3 cases presented in this issue deal with an array of clinical considerations in treating patients with TRD, including the use of ECT in...

Efficacy and safety of fixed doses of intranasal Esketamine as an add-on therapy to Oral antidepressants in Japanese patients with treatment-resistant depression: a phase 2b randomized clinical study

BMC Psychiatry October 31, 2021 Nagahide Takahashi, Aya Yamada, Ayako Shiraishi et al. 56 citations

Abstract Background Esketamine nasal spray (Spravato) in conjunction with oral antidepressants (ADs) is approved in the European Union, United States, and other markets for treatment-resistant depression (TRD). Efficacy, safety, and tolerability of esketamine nasal spray in Japanese patients with TRD needs to be assessed. Methods This Phase 2b, randomized, double-blind (DB), placebo-controlled...

CBD Effects on Motor Profile and Neurobiological Indices Related to Glutamatergic Function Induced by Repeated Ketamine Pre-Administration

Frontiers in Pharmacology October 27, 2021 Nafsika Poulia, Foteini Delis, Charalampos Brakatselos et al.

Clinical evidence and experimental studies have shown the psychotomimetic properties induced by ketamine. Moreover, acute or chronic ketamine (KET) administration has been widely used for modeling schizophrenia-like symptomatology and pathophysiology. Several studies have reported the antipsychotic potential of cannabidiol (CBD), while there is limited information on the cannabidiol effect on...

Use of ketamine and esketamine for depression: an overview of systematic reviews with meta-analyses

European Journal of Clinical Pharmacology October 27, 2021 T. Lima, M. B. Visacri, P. M. Aguiar 38 citations

To summarize the evidence of efficacy and safety of the use of ketamine and esketamine for depression. A literature search was performed in Medline, the Cochrane Library, LILACS, and CRD until November 2020. We included systematic reviews with meta-analyses of randomized controlled trials on the use of ketamine and esketamine in adult patients with depression. Two authors independently...

Antianhedonic Effect of Repeated Ketamine Infusions in Patients With Treatment Resistant Depression

Frontiers in Psychiatry October 18, 2021 Alina Wilkowska, Mariusz S. Wiglusz, Maria Gałuszko‐węgielnik et al. 35 citations

Anhedonia constitutes one of the main symptoms of depressive episode. It correlates with suicidality and significantly effects the quality of patient's lives. Available treatments are not sufficient against this group of symptoms. Ketamine is a novel, rapid acting strategy for treatment resistant depression. Here we report the change in symptoms of anhedonia measured by Snaith-Hamilton Pleasure...

The Use of Ketamine as Therapy for Depression

Open Access Indonesian Journal of Medical Reviews October 15, 2021 Lovina Lovina

Depressive disorder is still a significant problem in several developed countriesand is morbidity caused by mental disorders. With the development of science,now discovered the unique pharmacodynamic properties of ketamine, which isused as an antidepressant. As we know in clinical practice, ketamine is used foranaesthesia, analgesia, sedation, and chronic pain management....

Ketamine and other glutamate receptor modulators for depression in adults with bipolar disorder.

Cochrane Database of Systematic Reviews October 8, 2021 Rebecca L. Dean, Tahnee Marquardt, Claudia C. Hurducas et al. 41 citations

BACKGROUND Glutamergic system dysfunction has been implicated in the pathophysiology of bipolar depression. This is an update of the 2015 Cochrane Review for the use of glutamate receptor modulators for depression in bipolar disorder. OBJECTIVES 1. To assess the effects of ketamine and other glutamate receptor modulators in alleviating the acute symptoms of depression in people with bipolar...

Prevention and reversal of ketamine-induced experimental psychosis in mice by the neuroactive flavonoid, hesperidin: the role of oxidative and cholinergic mechanisms.

Brain Research Bulletin October 1, 2021 I. Ishola, Benneth Ben-Azu, Oluwatosin A. Adebayo et al.

Currently, prevailing evidence have identified cholinergic and oxidative pathways as important therapeutic targets for abating ketamine-induced schizophrenia-like behavior. Thus, this study evaluated the ability of hesperidin, a naturally occurring antioxidant and neuroprotective flavonoid, to prevent and reverse ketamine-induced schizophrenia-like behaviors and changes in cholinergic,...

Ketamine triggers rapid antidepressant effects by modulating synaptic plasticity in a new depressive-like mouse model based on astrocyte glutamate transporter GLT-1 knockdown in infralimbic cortex.

Revista de Psiquiatría y Salud Mental October 1, 2021 M. N. Fullana, Verónica Paz, Francesc Artigas et al.

OBJECTIVE Recently, we reported on a new MDD-like mouse model based on a regionally selective knockdown of astroglial glutamate transporters, GLAST/GLT-1, in infralimbic cortex (IL) which evokes widespread changes in mouse brain associated with the typical alterations found in MDD patients. To further characterize this new MDD-like mouse model, here we examine some transcriptional elements of...

Mnemnonic Discrimination Deficits in First Episode Psychosis and a Ketamine Model Suggests Dentate Gyrus Pathology Linked to NMDA-Receptor Hypofunction

Biological Psychiatry: Cognitive Neuroscience and Neuroimaging October 1, 2021 N. Kraguljac, Matthew S. Carle, M. Frölich et al.

Background: Converging evidence from neuroimaging and post-mortem studies suggests that hippocampal subfields are differentially affected in schizophrenia. Recent studies report dentate gyrus dysfunction in chronic schizophrenia, but the underlying mechanisms remain to be elucidated. Here we sought examine if this deficit is already present in first episode psychosis, and if...

Ketamine induces EEG oscillations that may aid anesthetic state but not dissociation monitoring

Clinical Neurophysiology October 1, 2021 Shubham Chamadia, Jacob Gitlin, Jennifer Mekonnen et al.

Objective: Ketamine is an anesthetic drug associated with dissociation. Decreased electroencephalogram alpha (8 to 13 Hz) and low-beta (13 to 20 Hz) oscillation power have been associated with ketamine-induced dissociation. We aimed to characterize surface electroencephalogram signatures that may serve as biomarkers for dissociation. Methods: We analyzed data from a single-site, open-label,...

420 - Ketamine treatment in geriatric depression

International Psychogeriatrics October 1, 2021 J. Leal, Maria I Lapid, Simon Kung

Treatment resistant depression can be very disabling and has a significant negative impact on a patient, their family or caregivers, and the society. There is a growing evidence on the efficacy and safety of ketamine for treatment resistant depression. Ketamine is a racemate consisting of esketamine and arketamine, is an N-methyl D-aspartate receptor antagonist and comes in different...

Parental Attitudes Toward Use of Ketamine in Adolescent Mood Disorders and Suicidality

Journal of Child and Adolescent Psychopharmacology October 1, 2021 David S. Mathai, Alexis G. McCathern, Andrew G. Guzick et al. 14 citations

Objectives: Investigation into parental decision-making processes involving ketamine is of high priority, given the necessary role of parents in consenting to treatment. In this study, we examined parental attitudes toward the emerging use of ketamine in adolescent mood disorders and suicidality. Methods: Two hundred eighty-three English-speaking parents completed an online survey using Amazon...

Ketamine-assisted psychotherapy for trauma-exposed patients in an outpatient setting: A clinical chart review study

Journal of Psychedelic Studies October 1, 2021 Alan K. Davis, Pratheek Mangini, Yitong Xin 10 citations

Abstract Trauma exposure across the lifespan produces risks for posttraumatic stress disorder (PTSD), depression, anxiety, as well as global disability in functioning. This retrospective clinical chart review is the first of its kind to assess the utility of sublingual ketamine-assisted body-centered psychotherapy in trauma-exposed patients in a real world clinic setting. De-identified clinical...