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Neurophysiological correlates of ketamine-induced dissociative state in bipolar disorder: insights from real-world clinical settings.
Mol Psychiatry
January 2025
Siena Brain Investigation and Neuromodulation Lab, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy.
Ketamine, a dissociative compound, shows promise in treating mood disorders, including treatment-resistant depression (TRD) and bipolar disorder (BD). Despite its therapeutic potential, the neurophysiological mechanisms underlying ketamine's effects are not fully understood. This study explored acute neurophysiological changes induced by subanesthetic doses of ketamine in BD patients with depression using electroencephalography (EEG) biomarkers.
View Article and Find Full Text PDFIncreasing evidence suggests that anesthesia may induce developmental neurotoxicity, yet the influence of genetic predispositions associated with congenital anomalies on this toxicity remains largely unknown. Children with congenital heart disease often exhibit mutations in cilia-related genes and ciliary dysfunction, requiring sedation for their catheter or surgical interventions during the neonatal period. Here we demonstrate that briefly exposing ciliopathic neonatal mice to ketamine causes motor skill impairments, which are associated with a baseline deficit in neocortical layer V neuron apical spine density and their altered dynamics during motor learning.
View Article and Find Full Text PDFCurcumin alleviates inflammatory effects of ketamine anesthesia in postnatal rats.
Vet Res Forum
September 2024
Cardiovascular Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, USA.
Curcumin has been employed in traditional medicine for over a millennium to treat various ailments, and its global use is now widespread. Chinese medicine relies heavily on curcumin as a primary element and uses it to cure infectious diseases, skin disorders, depression, and stress. It has cardioprotective, neuroprotective, and anti-diabetic properties, as well as pharmacological effects on disorders like type II diabetes, atherosclerosis, and human immunodeficiency virus replication.
View Article and Find Full Text PDFClinical outcomes of ketamine in patients with traumatic brain injury: A systematic review.
Int J Crit Illn Inj Sci
September 2024
Department of Accident and Emergency Medicine, Salmaniya Medical Complex, Manama, Bahrain.
The current literature provides contradictory results concerning the impact of ketamine-induced anesthesia on traumatic brain injury (TBI) outcomes. This study aimed to investigate the potential of ketamine boluses to influence the brain pathophysiology in TBI patients. Twenty-one studies (n = 886) were extracted from PubMed, Web of Science, Scopus, CINAHL, and Cochrane Library.
View Article and Find Full Text PDFMethylphenidate Reversal of Dexmedetomidine-Induced Versus Ketamine-Induced Sedation in Rats.
Anesth Analg
August 2024
From the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, Massachusetts.
Background: Dexmedetomidine and ketamine have long elimination half-lives in humans and have no clinically approved reversal agents. Methylphenidate enhances dopaminergic and noradrenergic neurotransmission by inhibiting reuptake transporters for these arousal-promoting neurotransmitters. Previous studies in rats demonstrated that intravenous methylphenidate induces emergence from isoflurane and propofol general anesthesia.
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