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Ketamine: all studies

Page 329 of 449: studies 3,281 to 3,290 of 4,483, newest first. Back to the ketamine overview

Research

Comparison of Recurrence of Malignancy Following Two Opioid-free General Anesthesia Regimens versus Standard Care Using Opioids: A Retrospective Analysis.

Annals of African Medicine June 11, 2025 Sunil Rajan, Gayathri Sreekumar, Roniya Ann Roy et al.

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...

DOI: 10.4103/aam.aam_119_25 (opens in new tab) Full text (opens in new tab) Ketamine Anesthésie sans opioïdes Dexmedetomidine Dexmédétomidine +8

Unveiling the Anti-Inflammatory Effects of Antidepressants: A Systematic Review of Human Studies over the Last Decade.

Pharmaceuticals June 10, 2025 Layla Bleibel, Paulina Sokołowska, Gabriela Henrykowska et al. 18 citations

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...

Persistent aura without infarction.

Current Opinion in Neurology June 1, 2025 Maurizio Severino, Mark W Green

The scope of this review is to discuss persistent aura without infarction, a rare, highly disabling, yet apparently benign clinical condition, straddling neurology, neuro-ophthalmology, and psychiatry, whose differential diagnosis is essential for an appropriate therapeutic approach and to avoid clinical complications. Here we attempt to report on the available literature, trying to present a...

DOI: 10.1097/WCO.0000000000001357 (opens in new tab) Full text (opens in new tab) Ketamine Migraines and headaches Neurological disorders Migraine treatments +8

The sigma-1 receptor: a mechanistically-informed therapeutic target for antidepressants.

Expert Opinion on Therapeutic Targets June 1, 2025 Naomi Xiao, Liyang Yin, Kayla M Teopiz et al. 5 citations

The mechanism of action of antidepressants is not fully ascertained. In addition to monoamines, disparate other effectors are also implicated in the molecular and cellular effects of chronic stress including neurogenesis, neurodifferentiation, and neuroplasticity. Evidence suggests sigma-1 receptors (S1Rs) as a putative target and possible mediator of antidepressant activity. Data from...

The therapeutic effects of psychedelics for opioid use disorder: A systematic review of clinical studies.

Psychiatry Research June 1, 2025 Jeremy Weleff, Alejandra Pulido-Saavedra, Ardavan Mohammad Aghaei et al. 4 citations

Opioid-related overdose deaths have reached record high levels, and novel treatments for opioid use disorder (OUD) are needed. The three United States Food and Drug Administration (FDA)-approved medications for OUD function primarily at the mu-opioid receptor. While these remain the gold-standard treatment for OUD, they have shortcomings and treatment options separate from the opioid receptor...

Convergent effects of different anesthetics on changes in phase alignment of cortical oscillations.

Cell Reports May 27, 2025 Alexandra G Bardon, Jesus J Ballesteros, Scott L Brincat et al. 8 citations

Many anesthetics cause loss of consciousness despite having diverse underlying molecular and circuit actions. To explore the convergent effects of these drugs, we examine how anesthetic doses of ketamine and dexmedetomidine affect bilateral oscillations in the prefrontal cortex of nonhuman primates. Both anesthetics increase phase locking in the ventrolateral and dorsolateral prefrontal cortex,...

N-methyl-d-aspartate receptor hypofunction causes recurrent and transient failures of perceptual inference.

Brain May 13, 2025 Veith Weilnhammer, Marcus Rothkirch, Deniz Yilmaz et al. 11 citations

Perception integrates external sensory signals with internal predictions that reflect prior knowledge about the world. Previous research suggests that this integration is governed by slow alternations between an external mode, driven by sensory signals, and an internal mode, shaped by prior knowledge. Using a double-blind, placebo-controlled, cross-over experiment in healthy human participants,...

DOI: 10.1093/brain/awaf011 (opens in new tab) Full text (opens in new tab) Ketamine Bistable perception Predictive processing Psychosis +6

Pharmacological characterisation of JNJ-78911118, a novel, centrally-penetrant, selective GluN2A antagonist.

British Journal of Pharmacology May 13, 2025 Brian Lord, Sirak Simavorian, Ian Fraser et al. 2 citations

Non-selective NMDA receptor antagonism produces rapid symptom improvement in treatment-resistant depression; however, associated side effects necessitate medical oversight during administration. We hypothesised that selective GluN2A antagonism could provide similar efficacy with an improved side effect profile. Here, we report the pharmacology of JNJ-78911118, a brain-penetrant, GluN2A...

Perioperative Pain Management for Complex Pancreatic Resections for Patients with Chronic Pancreatitis.

Pancreas May 12, 2025 Supradeep S Madduri, Kristen R Szempruch, Dhruv J Patel et al. 1 citation

Pain control following surgery for chronic pancreatitis presents a significant challenge. Options like epidurals used in parenchymal preserving pancreatic surgery (PPS) are contraindicated in certain settings such as total pancreatectomy (TP) with islet cell auto-transplantation (IAT). Our aim is to assess the efficacy and safety of ketamine in these patients and compare it to that of epidural...

DOI: 10.1097/MPA.0000000000002513 (opens in new tab) Full text (opens in new tab) Whipple Chronic pancreatitis Islet cell autotransplantation Pain management +4

Tusi but not 2C: A Miami-Dade medical examiner case series highlighting the variable drug composition in colored powder paraphernalia.

Journal of Forensic Sciences May 1, 2025 Diane M Moore, Alexander D Giachetti, M Elizabeth Zaney et al. 3 citations

Eight fatalities between September 2020 and July 2024 in Miami-Dade County involving the ingestion of colored powders, referred to as "tusi," "tucibi," or "pink cocaine," are reported. For each case, a description of the terminal event, the postmortem toxicology findings, the cause and manner of death, and the chemical composition of the "tusi" powder(s) found on or near the decedent are...