2,576 results found
    1. Developmental Biology and Stem Cells

    Positional information specifies the site of organ regeneration and not tissue maintenance in planarians

    Eric M Hill, Christian P Petersen
    Homeostatic tissue maintenance can occur at locations distinct from the target sites of organ regeneration planarians.
    1. Human Biology and Medicine
    2. Neuroscience

    POMC neurons expressing leptin receptors coordinate metabolic responses to fasting via suppression of leptin levels

    Alexandre Caron et al.
    A subset of hypothalamic POMC neurons that express leptin receptors control metabolic responses to changing energy availability including regulating blood glucose and leptin levels.
    1. Epidemiology and Global Health

    Conjunction of factors triggering waves of seasonal influenza

    Ishanu Chattopadhyay et al.
    Three complementary computational approaches reveal a set of putative causes of initiation of pan-USA waves of influenza.
    1. Microbiology and Infectious Disease

    A randomised double blind placebo controlled phase 2 trial of adjunctive aspirin for tuberculous meningitis in HIV-uninfected adults

    Nguyen TH Mai et al.
    Adjunctive aspirin may reduce new brain infarcts and deaths in the first 60 days of treatment for HIV-uninfected adults with tuberculous meningitis.
    1. Computational and Systems Biology
    2. Ecology

    Individual crop loads provide local control for collective food intake in ant colonies

    Efrat Esther Greenwald et al.
    Colony satiation level determines the unloading rate of laden foragers, which, in turn, rely on their own food load to adjust their foraging effort.
    1. Cancer Biology
    2. Cell Biology

    Transient external force induces phenotypic reversion of malignant epithelial structures via nitric oxide signaling

    Benjamin L Ricca et al.
    In a 3D culture model of breast epithelium, application of a short-timescale compression to single malignant cells promotes the long-timescale development of polarized, growth-arrested structures.
    1. Microbiology and Infectious Disease

    Tuberculous Meningitis: Can aspirin help?

    Ashwini Kalantri, Shriprakash Kalantri
    Using a combination of aspirin, anti-tuberculosis drugs and steroids may help to reduce the number of strokes and deaths in patients with tuberculous meningitis.
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    1. Neuroscience

    Capillary pericytes express α-smooth muscle actin, which requires prevention of filamentous-actin depolymerization for detection

    Luis Alarcon-Martinez et al.
    Pericytes surrounding capillaries in the retina contain α-smooth muscle actin, demonstrating that pericytes have the necessary molecular machinery to change capillary diameter during neurovascular coupling.
    1. Cancer Biology
    2. Cell Biology

    Laminin signals initiate the reciprocal loop that informs breast-specific gene expression and homeostasis by activating NO, p53 and microRNAs

    Saori Furuta et al.
    Endogenous laminins are necessary to build a functional acinus via generating NO, activating p53, HOXD10 and other positive players, but tumor cells neither make laminin nor generate NO, unless they are reverted to an organized structure.
    1. Neuroscience

    Distinct contributions of functional and deep neural network features to representational similarity of scenes in human brain and behavior

    Iris IA Groen et al.
    Deep network features exhibit a robust correlation with brain activity in scene-selective cortex, but are not sufficient to explain human scene categorization behavior, which is strongly shaped by information about the function (possibility for action) of the scene.

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