1,593 results found
    1. Neuroscience

    Urocortin-3 neurons in the mouse perifornical area promote infant-directed neglect and aggression

    Anita E Autry et al.
    Genetic and functional manipulations uncover urocortin-3-expressing neurons in the perifornical area of the hypothalamus as a dedicated circuit component for the expression of infant-directed neglect and aggression in mice.
    1. Microbiology and Infectious Disease

    Unexpected plasticity in the life cycle of Trypanosoma brucei

    Sarah Schuster et al.
    Parasite life cycles may be more flexible than traditionally thought, potentially allowing single-cell infections of insect vectors and transmission between hosts even at very low parasite densities.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    A nascent polypeptide sequence modulates DnaA translation elongation in response to nutrient availability

    Michele Felletti et al.
    Specific amino acids in the N-terminus of the replication initiator protein DnaA inhibit translation elongation upon carbon starvation, illustrating that the identity of the N-terminal amino acids of a protein can modulate protein synthesis yield under changing conditions.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Dual expression of Atoh1 and Ikzf2 promotes transformation of adult cochlear supporting cells into outer hair cells

    Suhong Sun et al.
    Adult cochlear supporting cells (SCs) are plastic and respond to ectopic Ikzf2 and Atoh1, and hair cell damage by up-regulating HC and down-regulating their endogenous SC genes.
    1. Plant Biology
    2. Structural Biology and Molecular Biophysics

    The structure of photosystem I from a high-light-tolerant cyanobacteria

    Zachary Dobson et al.
    The necessity of studying extremophile organisms is exemplified by the structure of photosystem I from a high-light tolerant cyanobacteria, demonstrating the relationship between the structure and function in photosystem I.
    1. Immunology and Inflammation
    2. Neuroscience

    Subventricular zone/white matter microglia reconstitute the empty adult microglial niche in a dynamic wave

    Lindsay A Hohsfield et al.
    In an empty microglial niche, repopulating microglia arise from subventricular zone and white matter-associated areas without contributions from the bone marrow to fill the mouse brain via a spreading wave.
    1. Chromosomes and Gene Expression

    Linker histone H1.8 inhibits chromatin binding of condensins and DNA topoisomerase II to tune chromosome length and individualization

    Pavan Choppakatla et al.
    Linker histone H1.8 shapes mitotic chromosomes by tuning the number and size of condensin-dependent DNA loops and suppressing condensin and DNA topoisomerase II-dependent individualization.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    LIN37-DREAM prevents DNA end resection and homologous recombination at DNA double-strand breaks in quiescent cells

    Bo-Ruei Chen et al.
    The LIN37-DREAM complex has a critical role in regulating DNA double-strand break end processing and suppressing aberrant homology-directed repair in quiescent cells.
    1. Cell Biology
    2. Developmental Biology

    Imaging cytoplasmic lipid droplets in vivo with fluorescent perilipin 2 and perilipin 3 knock-in zebrafish

    Meredith H Wilson et al.
    Fluorescent perilipin zebrafish lines are powerful new tools for studying lipid droplet dynamics in health and disease.
    1. Evolutionary Biology
    2. Microbiology and Infectious Disease

    The roles of history, chance, and natural selection in the evolution of antibiotic resistance

    Alfonso Santos-Lopez et al.
    Selection imposed by antibiotics may dominate evolutionary forces acting on opportunistic pathogens like Acinetobacter baumannii, yet chance effects and a prior history in biofilm may constrain resistance and impose collateral sensitivities.

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