5,625 results found
    1. Epidemiology and Global Health

    Quantification of the pace of biological aging in humans through a blood test, the DunedinPoAm DNA methylation algorithm

    Daniel W Belsky et al.
    Methylation pace of aging is a novel measure requiring only a blood sample that clinical-trial and observational studies can use to test if treatments modify how fast participants are aging.
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Protein biogenesis machinery is a driver of replicative aging in yeast

    Georges E Janssens et al.
    A comprehensive mapping of the proteome and transcriptome during the complete replicative lifespan of budding yeast predicted an increased abundance of the protein biogenesis machinery is most causal for aging.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Vasohibin1, a new mouse cardiomyocyte IRES trans-acting factor that regulates translation in early hypoxia

    Fransky Hantelys et al.
    In mouse cardiomyocytes, (lymph)angiogenic growth factors are induced during early hypoxia by a translational mechanism involving a new IRES trans-acting factor, vasohibin-1.
    1. Microbiology and Infectious Disease

    Regulation of life span by the gut microbiota in the short-lived African turquoise killifish

    Patrick Smith et al.
    Resetting a young gut microbiota in middle-aged individuals extends life span and slows aging in the naturally short-lived turquoise killifish, a new vertebrate model organism to study how the microbiota affects the aging process.
    1. Neuroscience

    A circuit mechanism for decision-making biases and NMDA receptor hypofunction

    Sean Edward Cavanagh et al.
    Ketamine, an NMDA receptor antagonist and experimental model for schizophrenia, produces decision-making deficits in monkeys, which are predicted by a lowering of cortical excitation-inhibition balance in a spiking circuit model.
    1. Neuroscience

    Metacontrol of decision-making strategies in human aging

    Florian Bolenz et al.
    Older adults show reduced adaptation of decision-making strategies to dynamically changing situational demands.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A physicochemical perspective of aging from single-cell analysis of pH, macromolecular and organellar crowding in yeast

    Sara N Mouton et al.
    In mitotically aging yeast cells, the cytosol acidifies, the distances between the organellar membranes decrease dramatically, but crowding on the scale of the average size protein is relatively stable.
    1. Developmental Biology
    2. Immunology and Inflammation

    Sex difference in pathology of the ageing gut mediates the greater response of female lifespan to dietary restriction

    Jennifer C Regan et al.
    In the fruit fly Drosophila melanogaster, stem cell activity ages female guts but not male guts; furthermore, males with feminized guts develop pathologies but gain an increase in lifespan through dietary restriction.
    1. Ecology

    A moth odorant receptor highly expressed in the ovipositor is involved in detecting host-plant volatiles

    Rui-Ting Li et al.
    A moth can detect plant volatiles using an odorant receptor expressing in its ovipositor, and this odorant receptor has a much higher expression level in the ovipositor than antennae.
    1. Developmental Biology

    Neuronal octopamine signaling regulates mating-induced germline stem cell increase in female Drosophila melanogaster

    Yuto Yoshinari et al.
    Genetic analyses using the fruit fly illustrate how neuronal system couples germline stem cell increase to an external cue, which is mating, through stem cell niche signaling.

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