6,978 results found
    1. Genetics and Genomics

    Genetic and environmental perturbations lead to regulatory decoherence

    Amanda Lea et al.
    Infection and metabolic syndrome lead to a loss of molecular regulation, and changes in molecular correlations are under genetic control as revealed by the presence of correlation quantitative trait loci.
    1. Genetics and Genomics

    Genome-wide quantification of the effects of DNA methylation on human gene regulation

    Amanda J Lea et al.
    mSTARR-seq identifies regions of the genome where DNA methylation causally impacts gene expression, providing a map of which epigenetic marks may influence trait variation.
    1. Cell Biology

    Reduction of elevated proton leak rejuvenates mitochondria in the aged cardiomyocyte

    Huiliang Zhang et al.
    The primary respiratory defect seen in aged cardiomyocytes is an elevated proton leak mediated by ANT1, and this is prevented by treatment with SS-31 (elamipretide).
    1. Ecology
    2. Evolutionary Biology

    Proteomics reveals synergy between biomass degrading enzymes and inorganic Fenton chemistry in leaf-cutting ant colonies

    Morten Schiøtt, Jacobus J Boomsma
    Leaf-cutting ants use their fecal fluid to vector enzymes produced by their fungal symbiont to degrade plant biomass with a combination of degradation enzymes and Fenton chemistry.
    1. Developmental Biology

    A β-catenin-driven switch in TCF/LEF transcription factor binding to DNA target sites promotes commitment of mammalian nephron progenitor cells

    Qiuyu Guo et al.
    β-Catenin-mediated expansion of nephron progenitors is independent of direct β-catenin/chromatin engagement, while progenitor induction proceeds with a β-catenin-driven switch of repressive TCFL1/TCFL2 to activating TCF7/LEF1 factors on transcriptionally poised enhancers.
    1. Plant Biology

    Active suppression of a leaf meristem orchestrates determinate leaf growth

    John Paul Alvarez et al.
    A meristem acting at the margins of Arabidopsis leaves is suppressed by factors acting primarily in leaves and other determinate organs.
    1. Neuroscience

    Hippocampal activation is associated with longitudinal amyloid accumulation and cognitive decline

    Stephanie L Leal et al.
    Cognitively normal older adults show a positive relationship between neural activity during memory encoding and brain β-amyloid deposition rate over the subsequent 3-4 years, supporting preclinical data that associates neural activity with β-amyloid deposition.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Stress resets ancestral heritable small RNA responses

    Leah Houri-Zeevi et al.
    Various types of stress reset heritable small RNA responses through the function of the p38 MAPK pathway, the transcription factor SKN-1/Nrf2, and the MET-2/SETDB1 putative histone methyltransferase.
    1. Plant Biology

    LEAFY maintains apical stem cell activity during shoot development in the fern Ceratopteris richardii 

    Andrew RG Plackett et al.
    Transgenic analysis reveals a role for LEAFY in ferns that supports a trajectory from general to floral meristem-specific function as land plants evolved.
    1. Cell Biology
    2. Neuroscience

    TMC1 is an essential component of a leak channel that modulates tonotopy and excitability of auditory hair cells in mice

    Shuang Liu et al.
    Other than its function in mechanotransduction, TMC1 is indispensable for action potential firing of auditory hair cells by mediating a leak conductance that alters tonotopically along the cochlea coil.

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