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Ketamine: all studies

Page 393 of 449: studies 3,921 to 3,930 of 4,486, newest first. Back to the ketamine overview

Research

Local orchestration of distributed functional patterns supporting loss and restoration of consciousness in the primate brain.

Nature Communications March 11, 2024 Andrea I. Luppi, Lynn Uhrig, Jordy Tasserie et al. 43 citations

A central challenge of neuroscience is to elucidate how brain function supports consciousness. Here, we combine the specificity of focal deep brain stimulation with fMRI coverage of the entire cortex, in awake and anaesthetised non-human primates. During propofol, sevoflurane, or ketamine anaesthesia, and subsequent restoration of responsiveness by electrical stimulation of the central...

DOI: 10.1038/s41467-024-46382-w (opens in new tab) Full text (opens in new tab) Consciousness Brain research Anesthesia Brain stimulation

EMBARK Psychedelic Therapy for Depression

March 6, 2024 Bill Brennan, Alex Belser 6 citations

Abstract EMBARK Psychedelic Therapy for Depression: A New Approach for the Whole Person is a comprehensive guidebook for clinicians that presents a novel therapeutic framework for administering psychedelic medicines. The EMBARK model was developed in response to the growing interest in psychedelic medicines for treating mental health disorders, particularly depression, and the identified gaps...

Adulteration and substitution of drugs purchased in Australia from cryptomarkets: An analysis of Test4Pay

Drug and Alcohol Review March 4, 2024 Monica J Barratt, Matthew Ball, Gabriel T. W. Wong et al. 18 citations

INTRODUCTION: Prohibited drugs in unregulated markets may be adulterated, resulting in increased risks for people who use drugs. This study investigated levels of drug adulteration and substitution of drugs purchased in Australia from cryptomarkets. METHODS: Data were collected from a darknet forum called Test4Pay from 1 September 2022 to 23 August 2023. Posts were included if they reported the...

Novel rapid treatment options for adolescent depression.

Pharmacological Research March 1, 2024 Sandra Ledesma-Corvi, Jordi Jornet-Plaza, Laura Gálvez-melero et al. 22 citations

There is an urgent need for novel fast-acting antidepressants for adolescent treatment-resistant depression and/or suicidal risk, since the selective serotonin reuptake inhibitors that are clinically approved for that age (i.e., fluoxetine or escitalopram) take weeks to work. In this context, one of the main research lines of our group is to characterize at the preclinical level novel...

DOI: 10.1016/j.phrs.2024.107085 (opens in new tab) Full text (opens in new tab) Depression Adolescence Fast-acting antidepressants Sex differences +1

New pharmacotherapies to tackle the unmet needs in bipolar disorder: a focus on acute suicidality.

Expert Opinion on Pharmacotherapy March 1, 2024 Georgios D Kotzalidis, Federica Fiaschè, Alessandro Alcibiade et al. 3 citations

Suicidal behavior is relatively frequent in patients with bipolar disorder (BD) and constitutes their most frequent cause of death. Suicide rates remain high in patients with BD despite adherence to guidelines recommending lithium as first line, and/or antidepressants, antipsychotics, psychotherapy, psychosocial interventions, and electroconvulsive therapy. Hence the need to identify more...

DOI: 10.1080/14656566.2024.2334425 (opens in new tab) Full text (opens in new tab) Suicide, completed Drug design Drug treatment Glutamatergic transmission +8

Exploring Novel Antidepressants Targeting G Protein-Coupled Receptors and Key Membrane Receptors Based on Molecular Structures.

Molecules February 22, 2024 Hanbo Yao, Xiaodong Wang, Jiaxin Chi et al. 9 citations

Major Depressive Disorder (MDD) is a complex mental disorder that involves alterations in signal transmission across multiple scales and structural abnormalities. The development of effective antidepressants (ADs) has been hindered by the dominance of monoamine hypothesis, resulting in slow progress. Traditional ADs have undesirable traits like delayed onset of action, limited efficacy, and...

Exploring inner depths

February 20, 2024 Joost J. Breeksema

Psychedelics are remarkable, versatile substances that produce a wide range of effects and can cause both harm and healing. Clinical research into psychedelic treatments is booming. In spite of this renewed interest, relatively little is known about how patients experience these treatments. In this dissertation, patients who received a psychedelic (either ketamine or psilocybin) to a treat...

[Psychedelics in the field of chronic pain. A path to explore?].

Revue Médicale Suisse February 14, 2024 Aude Molinard-Chenu, Georgios Tsimploulis, Louise Penzenstadler et al.

Psychedelics are emerging as a therapeutic innovation in psychiatry and their use in chronic pain is worth exploring. In fact, they can modulate the serotonergic system, affecting central pain sensitization mechanisms. Ketamine, used for chronic analgesia, can lead to pain reduction, but additional studies are needed to assess its longterm effectiveness. "Classic" psychedelics are recently...

A Neuroanatomic and Pathophysiologic Framework for Novel Pharmacological Approaches to the Treatment of Post-traumatic Stress Disorder.

Drugs February 1, 2024 Michael A Norred, Zachary D Zuschlag, Mark B Hamner 11 citations

Post-traumatic stress disorder (PTSD) is a debilitating disorder inflicting high degrees of symptomatic and socioeconomic burdens. The development of PTSD results from a cascade of events with contributions from multiple processes and the underlying pathophysiology is complex, involving neurotransmitters, neurocircuitry, and neuroanatomical pathways. Presently, only two medications are US...

Phencyclidine-Like Abuse Liability and Psychosis-Like Neurocognitive Effects of Novel Arylcyclohexylamine Drugs of Abuse in Rodents

Journal of Pharmacology and Experimental Therapeutics January 25, 2024 Hannah E. Shaw, D. R. Patel, Brenda M. Gannon et al.

Abuse of novel arylcyclohexylamines (ACX) poses risks for toxicities, including adverse neurocognitive effects. In vivo effects of ring-substituted analogs of phencyclidine (PCP), eticyclidine (PCE), and ketamine are understudied. Adult male National Institutes of Health Swiss mice were used to assess locomotor effects of PCP and its 3-OH, 3-MeO, 3-Cl, and 4-MeO analogs, PCE and its 3-OH and...