469 results found
    1. Cell Biology

    Spatiotemporal regulation of autophagy during Caenorhabditis elegans aging

    Jessica T Chang et al.
    Autophagic flux assays in the nematode Caenorhabditis elegans suggest that autophagy decreases during normal aging, whereas long-lived daf-2 and glp-1 mutants maintain autophagic capacity in distinct spatiotemporal-specific manners to extend lifespan.
    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

    Role of SAGA in the asymmetric segregation of DNA circles during yeast ageing

    Annina Denoth-Lippuner et al.
    The SAGA complex binds non-chromosomal DNA circles and prevents their spreading by attaching them to nuclear pores, thereby leading to the concomitant accumulation of DNA circles and pores in ageing yeast mother cells.
    1. Biochemistry and Chemical Biology

    Age- and diet-associated metabolome remodeling characterizes the aging process driven by damage accumulation

    Andrei S Avanesov et al.
    Aging is a process characterized by gradual metabolome remodeling, deceleration of the remodeling in late life and under conditions that extend lifespan, and a mortality-associated pattern of cumulative damage.
    1. Neuroscience

    SIR-2.1 integrates metabolic homeostasis with the reproductive neuromuscular excitability in early aging male Caenorhabditis elegans

    Xiaoyan Guo, L René García
    A protein called SIR-2.1 helps to protect worms from the effects of aging by regulating metabolic processes that would otherwise generate damaging reactive oxygen species.
    1. Cell Biology
    2. Developmental Biology and Stem Cells

    Protein aggregates are associated with replicative aging without compromising protein quality control

    Juha Saarikangas, Yves Barral
    The aging lineage of budding yeast is differentiated by an early-appearing protein deposit that promotes protein quality control.
    1. Chromosomes and Gene Expression
    2. Neuroscience

    Longitudinal imaging of Caenorhabditis elegans in a microfabricated device reveals variation in behavioral decline during aging

    Matthew A Churgin et al.
    The WorMotel, a novel microfabricated device for automated longitudinal imaging of aging in large numbers of Caenorhabditis elegans, reveals that long and short lived strains vary in their behavioral decline during aging in a similar way to the long and short lived individuals in a wild type population.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    POWERDRESS interacts with HISTONE DEACETYLASE 9 to promote aging in Arabidopsis

    Xiangsong Chen et al.
    Genetic and biochemical studies reveal how a histone deacetylase acts together with other chromatin regulators to promote the onset of plant aging.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Changes of mitochondrial ultrastructure and function during ageing in mice and Drosophila

    Tobias Brandt et al.
    Respiratory activity and inner membrane organisation of mitochondria from Drosophila melanogaster break down during ageing, but mouse heart mitochondria appear to be protected against age-related damage.
    1. Cell Biology
    2. Developmental Biology and Stem Cells

    Mother-daughter asymmetry of pH underlies aging and rejuvenation in yeast

    Kiersten A Henderson et al.
    Protons are pumped out of mother cells by a protein that accumulates over time and this leads to cellular aging, but this protein is largely absent from daughter cells, which mediates rejuvenation.

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