2,259 results found
    1. Chromosomes and Gene Expression

    The starvation hormone, fibroblast growth factor-21, extends lifespan in mice

    Yuan Zhang et al.
    Transgenic mice with high levels of FGF21 live for longer than wild-type mice and do so without reducing food intake.
    1. Neuroscience

    The activity-dependent histone variant H2BE modulates the life span of olfactory neurons

    Stephen W Santoro, Catherine Dulac
    A genome-organizing protein that is present only in the olfactory system of mice has been found to orchestrate changes in the relative numbers of different odor-sensing neurons on the basis of how active these neurons are.
    1. Structural Biology and Molecular Biophysics

    Distinct gating mechanisms revealed by the structures of a multi-ligand gated K+ channel

    Chunguang Kong et al.
    Structural and functional studies of a potassium ion channel that is opened and closed by different ligands have revealed a novel gating mechanism.
    1. Neuroscience

    Changing the responses of cortical neurons from sub- to suprathreshold using single spikes in vivo

    Verena Pawlak et al.
    Changing the order in which presynaptic and postsynaptic cells are repeatedly activated can change what a mammalian visual cortex neuron communicates to downstream neurons.
    1. Microbiology and Infectious Disease

    Strong inter-population cooperation leads to partner intermixing in microbial communities

    Babak Momeni et al.
    Simulations and experiments on systems containing two different populations of microorganisms show that interactions that benefit at least one of the populations can lead to communities with stable compositions, and that strong cooperation between two populations can lead to communities in which both populations are mixed together.
    1. Cell Biology

    Aging: A new answer to old questions

    Yves Barral
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    1. Cell Biology

    Time line of redox events in aging postmitotic cells

    Nicolas Brandes et al.
    A sudden fall in the levels of the coenzyme NADPH within cells could have a central role in the process of aging.
    1. Cell Biology
    2. Developmental Biology

    Mitotic spindle scaling during Xenopus development by kif2a and importin α

    Jeremy D Wilbur, Rebecca Heald
    An interaction between two proteins enables the spindle—the structure that segregates chromosome pairs during mitosis—to change size as cells divide.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Influenza-virus membrane fusion by cooperative fold-back of stochastically induced hemagglutinin intermediates

    Tijana Ivanovic et al.
    Long-lived intermediate states formed by glycoprotein catalysts are an essential part of the process used by influenza virus particles to infect cells.

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