304 results found
    1. Neuroscience

    Chemogenetic inhibition of the medial prefrontal cortex reverses the effects of REM sleep loss on sucrose consumption

    Kristopher McEown et al.
    Loss of REM sleep increases sucrose and fat consumption in mice; and inhibiting the prefrontal cortex reverses the increased consumption of sucrose, but not fat, following REM sleep loss.
    1. Neuroscience

    Frontal beta-theta network during REM sleep

    Sujith Vijayan et al.
    Two regions of the frontal lobe – the anterior cingulate cortex and, unexpectedly, the dorsolateral prefrontal cortex – show coordinated rhythmic activity during REM sleep.
    1. Neuroscience

    Rem2 stabilizes intrinsic excitability and spontaneous firing in visual circuits

    Anna R Moore et al.
    In vivo and ex vivo analysis of the activity-regulated gene Rem2 in the mouse visual system sheds new light on the contribution of intrinsic excitability in circuit plasticity.
    1. Neuroscience

    Microglia TREM2R47H Alzheimer-linked variant enhances excitatory transmission and reduces LTP via increased TNF-α levels

    Siqiang Ren et al.
    Analysis of rats carrying the microglia gene and Alzheimer risk factor Trem2R47H variant shows increased glutamatergic transmission via supraphysiological TNF-α brain concentrations, linking a microglia pathogenic variant to neuronal dysfunction.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Neurodegenerative disease mutations in TREM2 reveal a functional surface and distinct loss-of-function mechanisms

    Daniel L Kober et al.
    Structural, biophysical, and functional analyses reveal that mutations in TREM2 trigger either misfolding or reduced binding to cell-surface glycosaminoglycans, which segregate with neurodegenerative disease link and highlight a functional surface linked to the pathogenesis of Alzheimer's disease.
    1. Neuroscience

    Neurovascular coupling and bilateral connectivity during NREM and REM sleep

    Kevin L Turner et al.
    Sleep-related hemodynamic signals are much larger than those in the awake brain, so it is crucial to monitor the arousal state during studies of spontaneous activity.
    1. Neuroscience

    Cold-inducible RNA-binding protein (CIRBP) adjusts clock-gene expression and REM-sleep recovery following sleep deprivation

    Marieke MB Hoekstra et al.
    The temperature-sensitive protein CIRBP contributes to the effect of sleep loss on the molecular circadian clock.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Multiple sources of slow activity fluctuations in a bacterial chemosensory network

    Remy Colin et al.
    Single-cell FRET measurements reveal large temporal activity fluctuations within this signaling pathway in Escherichia coli, caused by stochasticity of receptor methylation combined with allosteric interactions and slow rearrangements within receptor clusters.
    1. Neuroscience

    Recurrent processes support a cascade of hierarchical decisions

    Laura Gwilliams, Jean-Remi King
    The dynamics of neural responses during visual perception are best explained by a joint feedforward and recurrent architecture, which both maintains and broadcasts input features over time.
    1. Chromosomes and Gene Expression

    TRAIP drives replisome disassembly and mitotic DNA repair synthesis at sites of incomplete DNA replication

    Remi Sonneville et al.
    The TRAIP ubiquitin ligase is required during mitosis to disassemble the replisome at sites of incomplete DNA replication, and activate the mitotic DNA repair pathway, thus preserving genome integrity.

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