406 results found
    1. Cell Biology

    Epigenetics: How does obesity lead to insulin resistance?

    Chan Hee J Choi, Paul Cohen
    Experiments on mice show that an enzyme called DNA methyltransferase 3a is involved in insulin resistance via an epigenetic mechanism.
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    1. Cell Biology

    Dnmt3a is an epigenetic mediator of adipose insulin resistance

    Dongjoo You et al.
    Mouse and tissue culture studies reveal that adipose DNA methyltransferase 3a mediates insulin resistance, partially through repressing the expression of FGF21.
    1. Cell Biology
    2. Human Biology and Medicine

    Mitochondrial CoQ deficiency is a common driver of mitochondrial oxidants and insulin resistance

    Daniel J Fazakerley et al.
    Lower mitochondrial coenzyme Q was a consistent feature across multiple in vitro and in vivo models of insulin resistance and was sufficient to cause insulin resistance through increased mitochondrial oxidants.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    The insulin receptor cellular IRES confers resistance to eIF4A inhibition

    Calla M Olson et al.
    Utilizing a conserved mechanism, a ribosome can initiate translation from a site within the insulin receptor mRNA to maintain protein synthesis even when standard mechanisms of initiating translation have been inhibited by stress.
    1. Cell Biology
    2. Human Biology and Medicine

    Defective STIM-mediated store operated Ca2+ entry in hepatocytes leads to metabolic dysfunction in obesity

    Ana Paula Arruda et al.
    Store operated calcium entry is defective in hepatocytes of obese mice, and restoring this process is sufficient to improve glucose metabolism.
    1. Ecology

    The Natural History of Model Organisms: The secret lives of Drosophila flies

    Therese Ann Markow
    After decades of intensive research, D. melanogaster and its relatives could provide important tools for investigating future biological questions about human health and environmental change, but only if we better understand their natural history.
    1. Microbiology and Infectious Disease
    2. Ecology

    The Natural History of Model Organisms: The unexhausted potential of E. coli

    Zachary D Blount
    A better understanding of the remarkable diversity, natural history and complex ecology of E. coli in the wild could shed new light on its biology and role in disease, and further expand its many uses as a model organism.

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