193 results found
    1. Neuroscience

    The distinct roles of calcium in rapid control of neuronal glycolysis and the tricarboxylic acid cycle

    Carlos Manlio Díaz-García, Dylan J Meyer ... Gary Yellen
    When neurons are stimulated, calcium entry into mitochondria upregulates mitochondrial energy production, but glycolytic energy production in the cytosol is stimulated by elevated energy demand, not Ca2+ signaling.
    1. Cell Biology
    2. Genetics and Genomics

    Pyruvate and related energetic metabolites modulate resilience against high genetic risk for glaucoma

    Keva Li, Nicholas Tolman ... UK Biobank Eye and Vision Consortium
    Pyruvate and related metabolites are linked to reduced glaucoma risk among genetically predisposed individuals and mitigate disease in a mouse model, highlighting a potential metabolic mechanism of resilience.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Disruption of the TCA cycle reveals an ATF4-dependent integration of redox and amino acid metabolism

    Dylan Gerard Ryan, Ming Yang ... Christian Frezza
    Multi-omic analyses reveal a connection between the integrated stress response and the regulation of redox and amino acid metabolism when the TCA cycle is impaired.
    1. Microbiology and Infectious Disease

    Metabolic disruption impairs ribosomal protein levels, resulting in enhanced aminoglycoside tolerance

    Rauf Shiraliyev, Mehmet A Orman
    Aminoglycoside tolerance in tricarboxylic acid cycle and electron transport chain mutants does not result from impaired proton motive force and altered drug uptake, but rather from the downregulation of ribosomal proteins, which are primary targets of this drug class.
    1. Cell Biology

    Bacterial fumarase and L-malic acid are evolutionary ancient components of the DNA damage response

    Esti Singer, Yardena BH Silas ... Ophry Pines
    The dual function of an ancient prokaryotic enzyme, which is linked to specific metabolite signals, may have been the evolutionary driving force behind its dual localization in eukaryotes.
    1. Developmental Biology

    Metabolic reprogramming during neuronal differentiation from aerobic glycolysis to neuronal oxidative phosphorylation

    Xinde Zheng, Leah Boyer ... Tony Hunter
    The shutoff of aerobic glycolysis in neuronal differentiation is essential for neuronal survival.
    1. Medicine

    Mechanisms underlying neonate-specific metabolic effects of volatile anesthetics

    Julia Stokes, Arielle Freed ... Simon C Johnson
    Volatile anesthetics impair hepatic tricarboxylic acid cycle function in adult and neonatal mice, with citrate accumulation driving a neonate-specific inhibition of beta-oxidation and ketosis through their increased relative sensitivity to malonyl-CoA.
    1. Biochemistry and Chemical Biology
    2. Cancer Biology

    Mitochondrial redox adaptations enable alternative aspartate synthesis in SDH-deficient cells

    Madeleine L Hart, Evan Quon ... Lucas B Sullivan
    SDH-null cancer cells decrease mitochondrial complex I to drive rewired aspartate synthesis through reductive carboxylation and pyruvate carboxylase, supporting cell proliferation and tumor growth.
    1. Neuroscience

    Metabolic stress is a primary pathogenic event in transgenic Caenorhabditis elegans expressing pan-neuronal human amyloid beta

    Emelyne Teo, Sudharshan Ravi ... Jan Gruber
    Metabolic defects following expression of Aβ1-42 in nematode neurons are partially caused by inactivation of alpha-ketoglutarate dehydrogenase and can be rescued by Metformin.

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