119 results found
    1. Neuroscience

    Defective memory engram reactivation underlies impaired fear memory recall in Fragile X syndrome

    Jie Li, Rena Y Jiang ... Lu Chen
    Activity-dependent genetic labeling during behavioral learning shows Fragile-X syndrome model mice exhibit impaired hippocampal engram reactivation, and that enriched environment experience improves fear memory retrieval by enhancing engram reactivation efficacy.
    1. Neuroscience

    Beyond excitation/inhibition imbalance in multidimensional models of neural circuit changes in brain disorders

    Cian O'Donnell, J Tiago Gonçalves ... Terrence J Sejnowski
    Computational modeling and analysis of mouse neural population data finds that the excitation/inhibition imbalance theory of brain disorders is too limited to account for key changes in neural activity statistics.
    1. Neuroscience

    Dysregulated Dscam levels act through Abelson tyrosine kinase to enlarge presynaptic arbors

    Gabriella R Sterne, Jung Hwan Kim, Bing Ye
    Targeting Abelson kinase can be beneficial for treating disorders characterized by dysregulated Down Syndrome Cell Adhesion Molecule signaling.
    1. Computational and Systems Biology
    2. Medicine

    Diagnostically relevant facial gestalt information from ordinary photos

    Quentin Ferry, Julia Steinberg ... Christoffer Nellåker
    An automatic computer vision analysis approach can assist in the diagnosis of rare genetic disorders by using ordinary photographs of patients.
    1. Neuroscience

    Circuit-based intervention corrects excessive dentate gyrus output in the fragile X mouse model

    Pan-Yue Deng, Ajeet Kumar ... Vitaly A Klyachko
    Circuit-based intervention corrects irreconcilable excitability defects between dentate granule cells and mossy cells in Fmr1 knockout mice, representing a promising strategy to restore the dentate excitation/inhibition balance and circuit computations.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    FMRP promotes RNA localization to neuronal projections through interactions between its RGG domain and G-quadruplex RNA sequences

    Raeann Goering, Laura I Hudish ... J Matthew Taliaferro
    The molecular determinants for neuronal subcellular RNA transport by FMRP are defined, with interactions between RNA G-quadruplexes and the RGG domain of FMRP being of critical importance.
    1. Neuroscience

    Experience-dependent weakening of callosal synaptic connections in the absence of postsynaptic FMRP

    Zhe Zhang, Jay R Gibson, Kimberly M Huber
    Postnatal, postsynaptic loss of FMRP specifically weakens callosal synaptic inputs onto L2/3 pyramidal neurons, in requirement ofnormal sensory experience, through downregulating AMPA receptor transmission and without affecting local synaptic inputs during cortical circuit development.
    1. Neuroscience

    FMRP has a cell-type-specific role in CA1 pyramidal neurons to regulate autism-related transcripts and circadian memory

    Kirsty Sawicka, Caryn R Hale ... Robert B Darnell
    Identifying FMRP-bound mRNAs in hippocampal CA1 pyramidal neurons reveals cell-type specific regulation of autism-candidate and circadian mRNAs and FMRP-mediated control of memory across the circadian cycle.
    1. Neuroscience

    Drep-2 is a novel synaptic protein important for learning and memory

    Till F M Andlauer, Sabrina Scholz-Kornehl ... Stephan J Sigrist
    Drep-2 is the first representative of the evolutionary conserved CIDE-N protein family found at synapses and is required for associative learning by functionally intersecting with metabotropic signaling.

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