49 results found
    1. Biochemistry and Chemical Biology

    daf-16/FoxO promotes gluconeogenesis and trehalose synthesis during starvation to support survival

    Jonathan D Hibshman et al.
    daf-16/FoxO restructures metabolism during acute starvation to promote synthesis of trehalose, which supports survival as a stress protectant and energy source.
    1. Cell Biology
    2. Physics of Living Systems

    Metabolic constraints drive self-organization of specialized cell groups

    Sriram Varahan et al.
    In a developing yeast colony, cells go from homogeneous states to spatially organized, specialized metabolic states, and the new metabolic states depend on resources produced by the original state.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    sRNA-mediated activation of gene expression by inhibition of 5'-3’ exonucleolytic mRNA degradation

    Sylvain Durand et al.
    Small regulatory RNAs are able to modulate mRNA degradation rates by controlling access to the 5' end of mRNAs in bacteria.
    1. Human Biology and Medicine

    Blockade of glucagon signaling prevents or reverses diabetes onset only if residual β-cells persist

    Nicolas Damond et al.
    Contrary to previous reports, a complete absence of glucagon signaling is not sufficient to prevent diabetes after near-total β-cell loss.
    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. Human Biology and Medicine

    Metformin inhibits mitochondrial complex I of cancer cells to reduce tumorigenesis

    William W Wheaton et al.
    The anti-diabetic drug metformin, currently in clinical trials as a potential anti-cancer agent, reduces tumor growth by inhibiting mitochondrial complex I of human cancer cells.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Mycobacterium tuberculosis induces decelerated bioenergetic metabolism in human macrophages

    Bridgette M Cumming et al.
    Quantifiable bioenergetic parameters, determined from extracellular flux analyses, are distinct between macrophages infected with Mycobacteriumtuberculosis or vaccine strain M. bovis BCG, enabling assessment of future vaccine and drug efficacy.
    1. Microbiology and Infectious Disease

    Flexible nitrogen utilisation by the metabolic generalist pathogen Mycobacterium tuberculosis

    Aleksandra Agapova et al.
    Metabolomics and stable isotope labelling studies of virulent Mycobacterium tuberculosis reveal a de-centralised metabolic network able to utilise various amino acids as nitrogen sources to a better extent than ammonium.
    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. Computational and Systems Biology
    2. Genetics and Genomics

    A new experimental platform facilitates assessment of the transcriptional and chromatin landscapes of aging yeast

    David G Hendrickson et al.
    A new technology for obtaining aged yeast cells helps reveal a striking connection between aging, slow growth, and stress.

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