4,470 results found
    1. Developmental Biology

    An intrinsic cell cycle timer terminates limb bud outgrowth

    Joseph Pickering et al.
    Size control in limbs is an intrinsically determined process.
    1. Developmental Biology
    2. Cell Biology

    Direct visualization of a native Wnt in vivo reveals that a long-range Wnt gradient forms by extracellular dispersal

    Ariel M Pani, Bob Goldstein
    Free, extracellular dispersal of Wnt proteins generates a long-range gradient during animal development and is required for signaling.
    1. Ecology

    Experimental evaluation of the importance of colonization history in early-life gut microbiota assembly

    Inés Martínez et al.
    Experiments in ex-germ-free mice establish a measurable effect of colonization history on gut microbiota assembly, illuminating a potential cause for the high levels of unexplained individuality in host-associated microbial communities.
    1. Human Biology and Medicine

    Palovarotene reduces heterotopic ossification in juvenile FOP mice but exhibits pronounced skeletal toxicity

    John B Lees-Shepard et al.
    Daily palovarotene treatment reduces pathogenic expansion of fibro/adipogenic progenitors but results in long bone growth plate loss and overgrowths of synovial cartilage in juvenile mice.
    1. Cell Biology
    2. Human Biology and Medicine

    Prolonged cross-bridge binding triggers muscle dysfunction in a Drosophila model of myosin-based hypertrophic cardiomyopathy

    William A Kronert et al.
    Integrative analysis of a Drosophila model of hypertrophic cardiomyopathy demonstrates that prolonged binding of the myosin cross-bridge to actin is a root cause of the disorder.
    1. Cell Biology

    PPP1R35 is a novel centrosomal protein that regulates centriole length in concert with the microcephaly protein RTTN

    Andrew Michael Sydor et al.
    The previously uncharacterized protein PPP1R35 is a novel centriolar luminal protein critical for centriole elongation by acting in a complex with microcephaly protein RTTN.
    1. Neuroscience

    Conditioning sharpens the spatial representation of rewarded stimuli in mouse primary visual cortex

    Pieter M Goltstein et al.
    Stimulus-reward learning sharpens the local representation of the visual space while leaving the overall retinotopic map intact.
    1. Microbiology and Infectious Disease

    Human gut Bacteroides capture vitamin B12 via cell surface-exposed lipoproteins

    Aaron G Wexler et al.
    The human gut bacterial lipoprotein BtuG binds vitamin B12 with femtomolar affinity, can remove vitamin B12 from human intrinsic factor, and is required for commensal fitness in the gut.
    1. Cell Biology
    2. Human Biology and Medicine

    Muscle Contraction: Too much of a good thing

    H Lee Sweeney
    A mutation that causes heart disease in humans increases the number of active myosin heads during contraction in the muscles of fruit flies, leading to the progressive dysfunction of the flight muscles and heart tube.
    Insight
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