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Addiction: all studies

Page 387 of 857: studies 3,861 to 3,870 of 8,563, newest first. Back to the addiction overview

Research

Sustained antidepressant effect of ketamine through NMDAR trapping in the LHb

Nature October 18, 2023 Shuangshuang Ma, Min Chen, Yihao Jiang et al. 202 citations

The discrepancy between the short half-life of ketamine and its long-lasting effects is due to ketamine being trapped in NMDA receptors, and its release depends on neural activity in the lateral habenula. Ketamine, an N -methyl- d -aspartate receptor (NMDAR) antagonist^ 1 , has revolutionized the treatment of depression because of its potent, rapid and sustained antidepressant effects^ 2 – 4 ....

Virtual Reality Meditation for Fatigue in Persons With Rheumatoid Arthritis: Mixed Methods Pilot Study

JMIR Formative Research October 17, 2023 Nathan J. Dreesmann, D. Buchanan, H. Tang et al.

Background Effective symptom management is crucial to enhancing the quality of life for individuals with chronic diseases. Health care has changed markedly over the past decade as immersive, stand-alone, and wearable technologies including virtual reality have become available. One chronic pain population that could benefit from such an intervention is individuals with rheumatoid arthritis...

Acute but not long-lasting antidepressant-like effect of psilocybin in differential reinforcement of low-rate 72 schedule in rats

Journal of Psychopharmacology October 16, 2023 Maciej Koniewski, Piotr Popik, Natalia Malikowska‐racia et al. 6 citations

Background: In clinical studies, psychedelics including psilocybin and D-lysergic acid diethylamide (LSD) demonstrate rapid and persistent antidepressant effects. Since the effective treatment with psychedelics is usually provided with psychotherapy, it is debatable whether their prolonged efficacy can be observed in infrahuman species. Preclinical reports on psychedelics’ effects most often...

DOI: 10.1177/02698811231205692 (opens in new tab) Psilocybin Antidepressant Hallucinogen Differential reinforcement +1

Psilocybin, an Effective Treatment for Major Depressive Disorder in Adults - A Systematic Review

Clinical Psychopharmacology and Neuroscience October 16, 2023 Tessa Watford, Naqash Masood 21 citations

Psilocybin is a classical psychedelic which has been utilised for healing purposes for millenia. However, with its classification as a Schedule I substance, research into this compound is scarce with few FDA-approved clinical studies. Despite this, profound findings into its antidepressant effects (largely through its action on 5-HT1a receptors) in mental illnesses such as major depressive...

Psilocybin-induced changes in cerebral blood flow are associated with acute and baseline inter-individual differences.

Scientific Reports October 14, 2023 Nathalie M. Rieser, Ladina P Gubser, Flora Moujaes et al. 14 citations

Research into the use of psilocybin for the treatment of psychiatric disorders is a growing field. Nevertheless, robust brain-behavior relationships linking psilocybin-induced brain changes to subjective drug-induced effects have not been established. Furthermore, it is unclear if the acute neural effects are dependent on individual heterogeneity in baseline characteristics. To address this, we...

DOI: 10.1038/s41598-023-44153-z (opens in new tab) Full text (opens in new tab) Psychedelics Personalized medicine Brain imaging Mental health

Repurposing of recreational drugs: will these new ‘medicines’ (e.g., psychedelics, psilocybin, cannabinoids, LSD, MDMA, ketamine) deliver short- or longer-term benefits for those with depressive or other mood disorders?

Research Directions Depression October 13, 2023 Ian B. Hickie, F. Markus Leweke, Allan H. Young 1 citation

In recent years, there has been considerable enthusiasm among research groups focused on developing novel therapies for treatment-resistant depression, and a wider community that has had experiences using recreational drugs, in more systematic evaluation of the therapeutic value of these compounds (Goodwin et al., 2022; Young, 2023). This has also been associated with advocacy for...

The Ethics of Machine Consciousness: Components, Detection, and Implications

Current Trends in Biomedical Engineering & Biosciences October 12, 2023 Muhammad Ashir Shafique

The pursuit of artificial consciousness introduces profound ethical considerations despite the current absence of conscious machines. This study delves into the multifaceted dimensions of artificial consciousness, scrutinizing its components and the epistemological hurdles surrounding its comprehension. The intricate nature of consciousness mandates a comprehensive understanding before...

Peculiarities of Clinical Symptoms, Somatic Complications, Approaches to Therapy and Outcomes of Delirium Induced by Exposure to Synthetic Cannabinoids: Systematic Review

I P Pavlov Russian Medical Biological Herald October 12, 2023 I. Fedotov, B. Y. Volodin, V. V. Novikov et al.

INTRODUCTION: The use of synthetic cannabinoids (SCs) is an urgent healthcare problem, due to, among other things, a high number of complications. AIM: To systematize the peculiarities of clinical presentation, somatic complications, effectiveness of empirical approaches to therapy, and probable outcomes of delirium induced by exposure to SCs. MATERIALS AND METHODS: The analysis of scientific...

Ayahuasca ceremonies: set and setting features across Italy and Colombia

Drugs, Habits and Social Policy October 12, 2023 Federica Ambrosini, Laura Pariset, Roberta Biolcati 2 citations

Purpose Ayahuasca ceremonies are currently practiced all over the world. This study aims to investigate ayahuasca ceremonies in Colombia (where ayahuasca use is culturally entrenched) and Italy (where ayahuasca use has only recently spread). Design/methodology/approach In total, 32 Italian (53% males; 47% females) and 28 Colombian (79% males; 21% females) ayahuasca ceremony participants...

DOI: 10.1108/dhs-06-2023-0021 (opens in new tab) Full text (opens in new tab) Ayahuasca Ceremony Context archaeology Interpersonal communication +4

Effects of NMDA-receptor blockade by ketamine on mentalizing and its neural correlates in humans: a randomized control trial

Scientific Reports October 11, 2023 Sven Wasserthal, Mirko Lehmann, Claudia Neumann et al. 7 citations

Schizophrenia is associated with various deficits in social cognition that remain relatively unaltered by antipsychotic treatment. While faulty glutamate signaling has been associated with general cognitive deficits as well as negative symptoms of schizophrenia, no direct link between manipulation of glutamate signaling and deficits in mentalizing has been demonstrated thus far. Here, we...