1,451 results found
    1. Physics of Living Systems

    A mechanism for hunchback promoters to readout morphogenetic positional information in less than a minute

    Jonathan Desponds et al.
    Maternal positional information in the fly embryo can be read rapidly in spite of the gene-expression bottleneck and general examples of regulatory architectures that combine speed and accuracy are provided.
    1. Neuroscience

    Efficient and accurate extraction of in vivo calcium signals from microendoscopic video data

    Pengcheng Zhou et al.
    A new open-source computational toolbox for processing in vivo microendoscopic calcium imaging data performs signal demixing and denoising much more accurately than previously available methods, significantly improving the utility of this imaging modality.
    1. Biochemistry and Chemical Biology

    Optical manipulation of sphingolipid biosynthesis using photoswitchable ceramides

    Matthijs Kol et al.
    Photoswitchable ceramides containing an azobenzene photoswitch behave as light-controllable substrates for both sphingomyelin synthase and glucosylceramide synthase.
    1. Neuroscience

    Early dysfunction and progressive degeneration of the subthalamic nucleus in mouse models of Huntington's disease

    Jeremy F Atherton et al.
    In mouse models of Huntington's disease, the subthalamic nucleus, which suppresses movements, also exhibits impaired glutamate homeostasis, NMDA receptor-dependent mitochondrial oxidant stress, firing disruption, and 30% neuronal loss.
    1. Neuroscience

    Shared rhythmic subcortical GABAergic input to the entorhinal cortex and presubiculum

    Tim James Viney et al.
    GABAergic parvalbumin-expressing 'orchid cells' of the medial septum selectively target GABAergic neurons in connected extra-hippocampal areas of the mouse, providing rhythmically bursting inhibitory input at the peak of hippocampal 5-12 Hz theta oscillatory cycles.
    1. Neuroscience

    Subthalamic, not striatal, activity correlates with basal ganglia downstream activity in normal and parkinsonian monkeys

    Marc Deffains et al.
    The spiking activity of the subthalamic nucleus, rather than the activity of striatal projection neurons, orchestrates basal ganglia downstream activity and output commands in health and Parkinson’s disease.
    1. Neuroscience

    Texture coarseness responsive neurons and their mapping in layer 2–3 of the rat barrel cortex in vivo

    Liora Garion et al.
    Neurons within rat somatosensory cortex are selective to texture and are spatially organized according to their texture preference.
    1. Neuroscience

    Disynaptic cerebrocerebellar pathways originating from multiple functionally distinct cortical areas

    Julia U Henschke, Janelle MP Pakan
    Anatomical projections from sensory, motor, and association cortex to the cerebellum are precisely mapped, including cortical-precerebellar connections and terminal organization, providing insight into how the cerebellum may utilize cortical information.
    1. Cell Biology
    2. Physics of Living Systems

    A physical mechanism of TANGO1-mediated bulky cargo export

    Ishier Raote et al.
    TANGO1 functions as a linactant filament to stabilize shallow COPII-coated buds, and after which membrane tension regulation, possibly mediated by TANGO1-controlled membrane fusion, facilitates bud elongation for procollagen export.
    1. Neuroscience

    A quantitative framework for whole-body coordination reveals specific deficits in freely walking ataxic mice

    Ana S Machado et al.
    Analysis of 3D paw kinematics and whole-body coordination in freely walking mice isolates specific features of gait ataxia and supports the hypothesis that the cerebellum provides an internal forward model for motor control.

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