140 results found
    1. Computational and Systems Biology
    2. Physics of Living Systems

    Physical limits of flow sensing in the left-right organizer

    Rita R Ferreira et al.
    Large-scale in vivo imaging of the zebrafish left-right organizer (Kupffer's vesicle) combined with fluid dynamics calculations allows to quantitatively test the possible flow detection mechanisms and supports the flow transport of chemical signals as the mechanism of side determination.
    1. Cell Biology
    2. Developmental Biology and Stem Cells

    Proteolytic processing of palmitoylated Hedgehog peptides specifies the 3-4 intervein region of the Drosophila wing

    Sabine Schürmann et al.
    Proteolysis of lipidated N-terminal peptides that tether Hedgehog morphogens to the surface of source cells is absolutely required for their coupled release and bioactivation in vivo in Drosophila melanogaster.
    1. Developmental Biology and Stem Cells

    Transient hypothyroidism favors oligodendrocyte generation providing functional remyelination in the adult mouse brain

    Sylvie Remaud et al.
    Production of remyelinating subventricular zone oligodendrocyte progenitors is stimulated by transient abrogation of thyroid hormone signalling in the adult neural stem cell niche.
    1. Cell Biology
    2. Neuroscience

    Clarinet (CLA-1), a novel active zone protein required for synaptic vesicle clustering and release

    Zhao Xuan et al.
    Clarinet, a novel C. elegans active zone protein with homology to vertebrate Piccolo and Rim, uses its different isoforms for diverse functions, including synaptic vesicle clustering, vesicle release and synaptogenesis.
    1. Cell Biology

    Recruitment dynamics of ESCRT-III and Vps4 to endosomes and implications for reverse membrane budding

    Manuel Alonso Y Adell et al.
    Quantitative 3D lattice light sheet microscopy of unperturbed cells combined with electron tomography and acute loss of function experiments reveals how dynamic ESCRT-III/Vps4 assemblies succeed in reverse membrane budding on endosomes.
    1. Neuroscience

    Task-dependent recurrent dynamics in visual cortex

    Satohiro Tajima et al.
    A decoding-based, state-space reconstruction reveals that neurons in macaque IT cortex change the structure of their collective attractor dynamics depending on task contexts.
    1. Neuroscience

    A predictive focus of gain modulation encodes target trajectories in insect vision

    Steven D Wiederman et al.
    Visual neurons in the dragonfly predict the path of a moving target, even when it is occluded or crosses from one eye to the other.
    1. Neuroscience

    Attenuation of dopamine-modulated prefrontal value signals underlies probabilistic reward learning deficits in old age

    Lieke de Boer et al.
    Attenuated anticipatory activity in ventromedial prefrontal cortex is modulated by dopamine D1 receptor density in nucleus accumbens, and accounts for impaired probabilistic reward learning in older adults.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    A high-resolution morphological and ultrastructural map of anterior sensory cilia and glia in Caenorhabditis elegans

    David B Doroquez et al.
    The three-dimensional structures of 50 sensory cilia present in the head of the adult C. elegans hermaphrodite have been reconstructed to provide a foundation for investigations into the mechanisms by which the diversity of cilia structures is generated and how this structural diversity is related to specific sensory neuron functions.
    1. Developmental Biology and Stem Cells

    Longevity is impacted by growth hormone action during early postnatal period

    Liou Y Sun et al.
    Transient hormonal alterations during early critical developmental periods can have a crucial and long-lasting effect on lifespan in mice.

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