BMJ OpenJune 23, 2025Zhe Sun, Lei Jiang, Yan Xing et al.
As a disorder of gut-brain interaction, irritable bowel syndrome (IBS) is a common reason for patient visits in primary and specialist care settings. IBS is associated with recurrent abdominal pain, altered bowel habit, resulting in alternating constipation and diarrhoea, bloating, without serious organic diseases. The bidirectional relationship between IBS and psychological factor is also...
Ketamine induces antidepressant action via upregulation of hippocampal brain-derived neurotrophic factor (BDNF) expression and TrkB receptor signaling. Rett syndrome (RTT), a neurodevelopmental disorder caused by mutations in Methyl-CpG-binding protein 2 (MECP2), is associated with decreased BDNF expression. Although treatment with ketamine or LM22A-4, a TrkB receptor agonist, improves...
Ketamine, a rapid-acting N-methyl-D-aspartate receptor antagonist used as a therapeutic for treatment-resistant depression (TRD), is usually administered intravenously or intranasally. This randomized, double-blind, placebo-controlled, Phase 1 study investigated safety and tolerability (primary endpoint), pharmacokinetics (PK) and pharmacodynamics (PD) of an immediate-release oral ketamine....
As higher doses of ketamine are being used in numerous medical conditions such as Complex Regional Pain Syndrome (CRPS), it is critical to examine common adverse effects (AEs) explicitly associated with high doses of ketamine (HDK). HDK is often associated with psychiatric symptoms such as agitation, anxiety, and sleep disturbances. Psychiatric effects have been documented in various methods of...
Neuroimaging studies have linked the beneficial effects of subanaesthetic ketamine doses in psychiatric conditions characterized by chronic stress pathology (CSP) to altered functional connectivity (FC) within the pregenual anterior cingulate cortex (pgACC). Previous research indicates a potential role of glutamate concentration in FC changes; however, the precise relationship between glutamate...
Electroconvulsive therapy (ECT) and intravenous (IV) ketamine are treatments used for severe depression and/or treatment-resistant depression (TRD). ECT is considered one of the most effective treatments for severe depression, although there is debate within the field regarding the effectiveness between ECT and IV ketamine in comparable TRD patient groups. This retrospective chart review of...
Neurocritical careJune 18, 2025Essamedin M Negm, Hossam Tharwat Ali, Hanaa A Nofal et al.4 citations
Septic shock is a recognized cause of global mortality in intensive care units. Sedation and analgesia management are essential for patients with sepsis or hemodynamic instability. Although considered safe concerning hemodynamic changes, ketamine use might cause a substantial rise in intracranial pressure (ICP). An interventional study was conducted at the intensive care unit of Zagazig...
Background Ketamine exerts potent but transient antidepressant effects in treatment-resistant depression (TRD). Combinations of ketamine and psychotherapy have attracted interest, but no trial has investigated a psychedelic model of ketamine–psychotherapy for TRD to our knowledge. Aims This secondary analysis of a randomised clinical trial (RCT) explores the therapeutic effects and experiential...
Treatment-resistant mood disorders are often managed with intensive interventions that include electroconvulsive therapy (ECT), transcranial magnetic stimulation (TMS), ketamine, and esketamine, but the role of genetics in clinical response to those interventions is yet to be clearly determined. Here, we review the current literature on the genetics of response to these treatment modalities. To...
Recreational ketamine use has increased in the last decades with incidental reports of urological complications. This study aimed to explore trends in the number of acute intoxications and urological complications from recreational ketamine use in the Netherlands. We retrospectively studied data from 2018 to 2024 from inquiries on ketamine toxicity to the Dutch Poisons Information Centre and...
Background: Ketamine use for chronic pain and depression has increased worldwide, but sex differences in its efficacy and safety have been little studied; this study examines existing evidence to address this gap. Methods: A prospective, multicenter, one-year observational study in 585 chronic pain patients was performed; 256 patients had one administration of ketamine and 329 had two or more....
Na het voltooien van deze activiteit moeten deelnemers in staat zijn om: Het werkingsmechanisme, de farmacokinetiek en de farmacodynamiek van esketamine bij de behandeling van depressie te beschrijven. De werkzaamheid, doseringstrategieën en klinische overwegingen voor het gebruik van esketamine bij therapieresistente depressie en ernstige depressie met suïcidale ideatie te evalueren....
After completing this activity, participants should be able to: Describe the mechanism of action, pharmacokinetics, and pharmacodynamics of esketamine in the treatment of depression. Evaluate the efficacy, dosing strategies, and clinical considerations for using esketamine in treatment-resistant depression and major depression with suicidal ideation. Identify and manage common and serious...
Postoperative Sore Throat (POST) may result in patient dissatisfaction and distress, which could possibly delay discharge. Various pharmacological and non-pharmacological approaches have been explored, yet effective techniques remain elusive. This research evaluates the impact of intra-cuff Dexamethasone, Ketamine, and normal saline on alleviating POST symptoms. In this randomized controlled...
Biological PsychiatryJune 13, 2025Shaoqiang Han, Ya Tian, Huiting Yang et al.1 citation
Although numerous studies have attempted to identify the functional pathways underlying the rapid antidepressant effects of ketamine, their findings remain inconsistent, limiting our understanding of the neural mechanisms involved. This study aims to delineate a specific brain circuit by integrating diverse functional findings related to ketamine's efficacy in depression. We conducted a...
Dissociative symptoms are commonly observed in a substantial minority of patients with Post-Traumatic Stress Disorder (PTSD) and during the first administration of esketamine for the treatment of Treatment-Resistant Depression (TRD). We examine differences in the number and pattern of dissociative symptoms (depersonalization, derealization, dissociative amnesia, identity fragmentation) reported...
Immunosuppressant effects of anesthesia can be reduced by avoiding opioids and volatile anesthetics. We retrospectively compared incidence of recurrence of malignancy in patients with advanced head-and-neck malignancies who had undergone excision with reconstruction surgery 1 year back and had received two different regimens of opioid free anesthesia (OFA) versus standard regimen using...
Background/Objectives: Depression ranks among the most prevalent mental health conditions globally, marked by a variety of symptoms that frequently cause significant emotional distress and impairment in individuals, alongside a high recurrence rate. The predominant approach to treating depression revolves around monoamine theory, utilizing SSRIs and SNRIs, with Esketamine emerging as a...
Ketamine, an N-methyl-D-aspartate receptor antagonist, has demonstrated rapid antidepressant effects at sub-anesthetic doses, making it a promising candidate for treatment-resistant mood disorders, anxiety, post-traumatic stress disorder, suicidality, and recently, eating disorders (EDs). However, its effects are transient, and ketamine-assisted psychotherapy (KAP) has emerged as a method to...
According to recent research, esketamine may reduce the incidence of postpartum depression (PPD) risk following cesarean delivery. To further assess this potential benefit, a meta-analysis was conducted. Embase, Web of Science, the Cochrane Library, and PubMed were searched from inception through March 2025. Meta-analysis was performed using random-effects models to calculate risk ratios (RRs)...