Translational Psychiatry
January 27, 2020
Kai Zhang, Chun Yang, Lijia Chang et al.
120 citations
In rodent models of depression, (R)-ketamine has greater potency and longer-lasting antidepressant effects than (S)-ketamine; however, the precise molecular mechanisms underlying the antidepressant actions of (R)-ketamine remain unknown. Using RNA-sequencing analysis, we identified novel molecular targets that contribute to the different antidepressant effects of the two enantiomers. Either...
Neuropsychopharmacology
January 26, 2020
Adán de Salas-Quiroga, Daniel García-Rincón, Daniel Gómez-Domínguez et al.
84 citations
Abstract Prenatal exposure to Δ9-tetrahydrocannabinol (THC), the most prominent active constituent of cannabis, alters neurodevelopmental plasticity with a long-term functional impact on adult offspring. Specifically, THC affects the development of pyramidal neurons and GABAergic interneurons via cannabinoid CB1 receptors (CB1R). However, the particular contribution of these two neuronal...
Mental Health Weekly
January 24, 2020
Heidi Bush
Psychedelic‐assisted psychotherapy is seeing a resurgence as a treatment approach for mental health disorders. It melds pharmacology and psychotherapy, using substances such as lysergic acid diethylamide (LSD) and psilocybin, under medical supervision, to treat conditions such as post‐traumatic stress disorder (PTSD) and extreme depression.
Frontiers in Psychology
January 23, 2020
Elizaveta Solomonova, Simon Dubé, Cloé Blanchette-Carrière et al.
9 citations
Aim: Rapid eye movement (REM) sleep, non-rapid eye movement (NREM) sleep, and sleep spindles are all implicated in the consolidation of procedural memories. Relative contributions of sleep stages and sleep spindles were previously shown to depend on individual differences in task processing. However, no studies to our knowledge have focused on individual differences in experience with Vipassana...
Neuron
January 22, 2020
Michelle J. Redinbaugh, Jessica M. Phillips, Niranjan A. Kambi et al.
preprint
SUMMARY: Functional MRI and electrophysiology studies suggest consciousness depends on large-scale thalamocortical and corticocortical interactions. However, it is unclear how neurons in different cortical layers and circuits contribute. We simultaneously recorded from central lateral thalamus (CL) and across layers of frontoparietal cortex in awake, sleeping and anesthetized macaques. We found...
bioRxiv Preprint Server
January 22, 2020
Greer McKendrick, Hannah Garrett, Holly E. Jones et al.
1 citation
preprint
Patients suffering from opioid use disorder often relapse during periods of abstinence, which is posited to be caused by negative affective states that drive motivated behaviors. Here, we explored whether conditioning mice with morphine in a CPP training paradigm evoked anxietylike behavior during morphine abstinence. To do this, mice were conditioned with morphine (10 mg/kg, i.p.) for five...
Ricerca Psicoanalitica
January 17, 2020
Paolo Cozzaglio
In the human being the levels of consciousness condition the different modalities of relationship and perception of reality. The level of primary consciousness is that of the consciousness of the Ego and corresponds to the individual perception of a personality that tends to remain stable and that relates interdependently and tends to be static with others. The consciousness of a higher order...
Indian Journal of Psychological Medicine
January 17, 2020
C S Gautam, Sonia S Mahajan, Jatin Sharma et al.
31 citations
Ketamine is a noncompetitive antagonist of the N-methyl-D-aspartate (NMDA) receptor which also interacts with various other receptors that account for its myriad actions. Originally approved as a general anesthetic, it is being explored to be repurposed for numerous other indications such as depressive disorders, suicidal ideation, substance-use disorders, anxiety disorders, chronic pain,...
Proceedings of the National Academy of Sciences
January 15, 2020
Matthew E. Klein, Joshua Chandra, Salma A. Sheriff et al.
157 citations
Significance Ketamine, an NMDA receptor antagonist, has generated intense excitement as a therapy for treatment-resistant depression. However, ketamine and its metabolites can act on a wide range of targets, including opioid receptors, which has raised concerns. Using behavioral and cellular assays in rodents, we find that blocking opioid function prevents the antidepressant-like effects of...
Biological Psychiatry
January 13, 2020
Katrin H. Preller, Patricia Duerler, Joshua B. Burt et al.
199 citations
BackgroundThe use of psilocybin in scientific and experimental clinical contexts has triggered renewed interest in the mechanism of action of psychedelics. However, its time-dependent systems-level neurobiology remains sparsely investigated in humans.MethodsWe conducted a double-blind, randomized, counterbalanced, crossover study comprising 23 healthy human participants who received placebo and...