Ketamine’s rapid action and diverse physiological effects have made it an important drug in both anesthesia and mental health treatment. Clinically, it offers unique dissociative anesthetic properties, preserving stable vital signs during sedation and analgesia. Beyond its numbing effect, studies explore its influence on N-methyl-D-aspartate (NMDA) receptors and wider neurochemical systems...
Cerebrolysin (CBL), a peptide derived from pig brain, is recognized for its neuroprotective and anti-inflammatory properties. This research aimed to investigate the effects of CBL on anxiety- and depression-like behaviors, spatial memory, the tryptophan/kynurenine (TRP/KYN) pathway, and inflammation in the prefrontal cortex (PFC) of a mouse model for schizophrenia. Thirty-six male BALB/c mice...
Ketamine is a rapid-acting antidepressant with sexually dimorphic effects. Female animals exhibit a higher sensitivity to its antidepressant properties, which has been associated with their ovarian hormone levels. One factor contributing to this sex difference is the faster rate of ketamine metabolism observed in females, potentially regulated by estrogen receptor alpha (ERα) through modulation...
This systematic review and meta-analysis evaluates (1) the effectiveness of psychedelic-assisted therapy (PAT) using psilocybin and ketamine for psychosocial symptoms in adults with cancer, (2) contextualizes findings with non-randomized and exploratory studies of other psychedelics, and (3) examines the role of therapeutic frameworks in shaping outcomes. We searched PubMed, Cochrane Library,...
Biological PsychiatryJune 25, 2025Kevin G Mulvihill, Gemma J Cockcroft, Angela C Roberts2 citations
Individual variability in pharmacological treatment efficacy remains a persistent obstacle to ameliorating clinical anxiety. This may originate, in part, from the different neural aetiologies underlying pathological anxiety. To provide novel insights into patient heterogeneity in anxiolytic responsiveness we compare the efficacy of distinct anxiolytic drugs, a Selective Serotonin Re-uptake...
bioRxiv Preprint ServerJune 24, 2025Marco German Ghilotti, Ricardo Petrilli Fortuna, Kofi Osei-Abrefa Ayensu et al.
preprint
Background The use of methamphetamine has continued to rise in the US. In addition to facilitating dopamine neurotransmission, methamphetamine indirectly increases glutamate release which activates N-methyl-D-aspartate receptors (NMDARs). Ketamine is a noncompetitive NMDAR antagonist. Ketamine also has actions on α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) and...
CHEST critical careJune 1, 2025Lucas C Wollenman, Austin M Tipold, Matthew W. Semler et al.1 citation
One of 3 patients in the ICU receiving mechanical ventilation demonstrates posttraumatic stress disorder (PTSD). A single dose of ketamine has been shown to reduce PTSD symptoms in outpatients with chronic PTSD, but its long-term effect is unknown in patients who are critically ill and mechanically ventilated. Is ketamine, when used for induction of anesthesia before emergency tracheal...
Ketamine has a long history as an anesthetic but has recently demonstrated antidepressant effects at sub-anesthetic doses (Matveychuk et al., 2020). For individuals with treatment-resistant depression (TRD), typical antidepressants are frequently ineffective, whereas ketamine’s unique mechanisms have demonstrated promising results in reducing depressive symptoms where other treatments have...
MedicineMay 2, 2025Xiaobo Bi, Junchao Dai, Jin Li8 citations
This study aimed to investigate the effects of a single intravenous injection of esketamine during general anesthesia on postoperative anxiety and depression in patients with thyroid cancer. In this randomized, double-blind, placebo-controlled, parallel-group trial, eighty female patients with thyroid cancer were scheduled to undergo surgery under general anesthesia. The patients were randomly...
TrialsApril 17, 2025Arash Mansoori, Amir Bazrafshan, Jamshid Ahmadi et al.4 citations
The concomitant presence of major depressive disorder (MDD) and opioid use disorder (OUD) poses a formidable clinical challenge, warranting effective interventions that address both psychiatric and addictive components. This study sought to compare the efficacy of adjunctive ketamine and buprenorphine in mitigating anxiety symptom severity and craving intensity in individuals with co-occurring...