3,087 results found
    1. Neuroscience

    Shifting from fear to safety through deconditioning-update

    Bruno Popik et al.
    Deconditioning is a safe and efficient new approach to updating traumatic memories, in which fear memory is rewritten to a very low level in a long-lasting way.
    1. Neuroscience

    Opposite changes in APP processing and human Aβ levels in rats carrying either a protective or a pathogenic APP mutation

    Marc D Tambini et al.
    APP mutations that either cause or prevent dementia alter APP metabolism in a complex and opposite fashion, suggesting a link between multiple APP processing events, dementia and ageing-dependent cognitive decline.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures demonstrate human IMPDH2 filament assembly tunes allosteric regulation

    Matthew C Johnson, Justin M Kollman
    Assembly of the human enzyme inosine monophosphate dehydrogenase 2 into filaments promotes substrate-dependent resistance to feedback inhibition by downstream products, promoting increased flux during proliferative states.
    1. Human Biology and Medicine
    2. Neuroscience

    Human Neocortical Neurosolver (HNN), a new software tool for interpreting the cellular and network origin of human MEG/EEG data

    Samuel A Neymotin et al.
    Human Neocortical Neurosolver is a new user-friendly software tool for researchers to develop and test hypotheses on cellular/circuit origins of human MEG/EEG signals using a biophysical model.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The speed of GTP hydrolysis determines GTP cap size and controls microtubule stability

    Johanna Roostalu et al.
    GTPase-deficient microtubules are hyper-stable and have longer EB binding regions, demonstrating that EBs bind the GTP cap.
    1. Neuroscience

    Nodal β spectrins are required to maintain Na+ channel clustering and axon integrity

    Cheng-Hsin Liu et al.
    A combination of sensory-neuron specific conditional knockout mice reveal nodal beta spectrins are required to maintain, but not assemble, nodes of Ranvier.
    1. Developmental Biology
    2. Neuroscience

    Purinergic signaling in cochlear supporting cells reduces hair cell excitability by increasing the extracellular space

    Travis A Babola et al.
    Supporting cells in the cochlea change their shape in response to purinergic receptor activation, which influences hair cell excitability by altering potassium redistribution in the extracellular space.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    The kinesin-5 tail domain directly modulates the mechanochemical cycle of the motor domain for anti-parallel microtubule sliding

    Tatyana Bodrug et al.
    Biochemical, single molecule, cell and structural biology studies reveal an interaction between the kinesin-5 tail and motor domains regulating high-force production, which is critical for microtubule sliding motility.
    1. Cell Biology
    2. Neuroscience

    The orphan receptor GPR88 blunts the signaling of opioid receptors and multiple striatal GPCRs

    Thibaut Laboute et al.
    GPR88 inhibits G-protein signaling of nearby GPCRs, and dampens b-arrestin recruitment by all GPCRs tested, likely by sequestration in intracellular compartments.
    1. Microbiology and Infectious Disease

    RNA polymerase mutations cause cephalosporin resistance in clinical Neisseria gonorrhoeae isolates

    Samantha G Palace et al.
    Ceftriaxone resistance has arisen multiple times in clinical gonococcal populations via previously undescribed RNA polymerase mutations, underscoring the importance of continued surveillance for novel resistance determinants.

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