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Addiction: all studies

Page 427 of 863: studies 4,261 to 4,270 of 8,627, newest first. Back to the addiction overview

Research

Feasibility of implantable microdosing devices to perform in vivo pharmacotyping in pancreatic cancer.

Journal of Clinical Oncology February 1, 2023 Lyudmyla Demyan, Oliver Standring, Taemoon Chung et al.

742 Background: Current biomarkers offer modest predictive capacity for drug sensitivity testing in pancreatic cancer. Patient-specific pharmacotyping offers the potential for a more direct, personalized prediction model. Recently, an implantable microdevice was developed to facilitate in situ multi-agent pharmacotyping and has since entered clinical trials in multiple cancer types, but had not...

Dream-enactment behaviours during the COVID-19 pandemic: an international COVID-19 sleep study.

Journal of Sleep Research February 2023 Yaping Liu, Eemil Partinen, Ngan Yin Chan et al.

There has been increasing concern about the long-term impact of coronavirus disease 2019 (COVID-19) as evidenced by anecdotal case reports of acute-onset parkinsonism and the polysomnographic feature of increased rapid eye movement sleep electromyographic activity. This study aimed to determine the prevalence and correlates of dream-enactment behaviours, a hallmark of rapid eye movement sleep...

DOI: 10.1111/jsr.13613 (opens in new tab) Full text (opens in new tab) Dream-enactment behaviour Neurodegeneration Prevalence

Perceptions about THC and CBD effects among adults with and without prior cannabis experience.

Addictive Behaviors February 2023 Toni C Spinella, Jeremy Bartholomeusz, Sherry H Stewart et al.

Cannabis is associated with a range of therapeutic and non-therapeutic, positive and negative effects. While some benefits and harms may be specific to individual cannabinoid constituents (THC, CBD), individual expectancies may also play a role. Evaluate the extent to which individuals hold expectancies about the effects of CBD, THC, and THC & CBD combined, and whether this differs with prior...

The Antidepressant-like Activity and Cognitive Enhancing Effects of the Combined Administration of (R)-Ketamine and LY341495 in the CUMS Model of Depression in Mice Are Related to the Modulation of Excitatory Synaptic Transmission and LTP in the PFC

Pharmaceuticals February 1, 2023 Agnieszka Pałucha-Poniewiera, B. Bobula, Anna Rafało-Ulińska

(S)-Ketamine is the first rapid-acting antidepressant drug (RAAD) introduced for the treatment of depression. However, research is still being carried out on the search for further RAADs that will be not only effective but also safe to use. Recent data have indicated that the combined administration of (R)-ketamine and the mGlu2/3 receptor antagonist LY341495 (mixRL) induces rapid and sustained...

Conscious interpretation: A distinct aspect for the neural markers of the contents of consciousness.

Consciousness and Cognition February 1, 2023 Talis Bachmann, Jaan Aru

Progress in the science of consciousness depends on the experimental paradigms and varieties of contrastive analysis available to researchers. Here we highlight paradigms where the object is represented in consciousness as a set of its features but the interpretation of this set alternates in consciousness. We group experimental paradigms with this property under the label "conscious...

Embodying cognitive ethology.

Theory & Psychology February 1, 2023 Helen L Ma, Michael R W Dawson, Ruby S Prinsen et al. 4 citations

Cognitive psychology considers the environment as providing information, not affecting fundamental information processes. Thus, cognitive psychology's traditional paradigms study responses to precisely timed stimuli in controlled environments. However, new research demonstrates the environment does influence cognitive processes and offers cognitive psychology new methods. The authors examine...

DOI: 10.1177/09593543221126165 (opens in new tab) Full text (opens in new tab) Attention Cognitive ethology Embodied cognition Real-world environment

The effects of ketamine and classic hallucinogens on neurotrophic and inflammatory markers in unipolar treatment-resistant depression: a systematic review of clinical trials.

European Archives of Psychiatry and Clinical Neuroscience February 1, 2023 Giordano Novak Rossi, Jaime E. C. Hallak, Glen B. Baker et al. 14 citations

Although results are still preliminary, ketamine and classical hallucinogens have shown promise in recent years as novel, fast-acting antidepressants, especially for the treatment of unipolar treatment-resistant depression (TRD). Depression also seems to be related to abnormal levels of peripheral inflammatory and neurotrophic biomarkers, which may one day help to diagnose of this disorder. In...

Spontaneous and induced out-of-body experiences during sleep paralysis: Emotions, "AURA" recognition, and clinical implications.

Journal of Sleep Research February 1, 2023 Nerea L Herrero, Francisco T Gallo, Miguel Gasca-Rolín et al. 15 citations

Sleep paralysis is characterized by the incapacity to perform voluntary movements during sleep/wake transitions, and could bring great discomfort. During sleep paralysis, out-of-body experiences can occur. Out-of-body experiences refers to the sensation of being outside of the physical body and perceiving the world from this outside perspective; however, they are pleasant in comparison with...

DOI: 10.1111/jsr.13703 (opens in new tab) Full text (opens in new tab) Autoscopy Consciousness Lucid dreams Parasomnias +1

Potent Anti-amoebic Effects of Ibogaine, Voacangine and the Root Bark Alkaloid Fraction of Tabernaemontana arborea.

Planta Medica February 1, 2023 Julio César Carrero, Violeta Curay-Herrera, Lysette Chacón-niño et al. 6 citations

Plants of Tabernaemontana species have several pharmacological activities including antimicrobial effects. Amoebiasis continues to be a public health problem, with increasing evidence of resistance to metronidazole. In this study, we assessed the effect of the alkaloid fraction of T. arborea root bark and the alkaloids ibogaine and voacangine on the viability and infectivity of Entamoeba...

DOI: 10.1055/a-1809-1157 (opens in new tab) Full text (opens in new tab) Ibogaine Amoebiasis *entamoeba histolytica* Parasitic infection +12

Effective Connectivity of Functionally Anticorrelated Networks Under Lysergic Acid Diethylamide.

Biological Psychiatry February 1, 2023 Devon Stoliker, Leonardo Novelli, Franz X. Vollenweider et al. 49 citations

Classic psychedelic-induced ego dissolution involves a shift in the sense of self and a blurring of the boundary between the self and the world. A similar phenomenon is identified in psychopathology and is associated with the balance of anticorrelated activity between the default mode network, which directs attention inward, and the salience network, which recruits the dorsal attention network...

DOI: 10.1016/j.biopsych.2022.07.013 (opens in new tab) Full text (opens in new tab) Ego dissolution Anticorrelated networks Dynamic causal modeling Effective connectivity +8