88 results found
  1. Episode 38: May 2017

    In this episode we hear about biofilms in bacteria, drug production, gender bias in peer review, nematode worms and how synchronising brain waves can boost memory.
    1. Cell Biology
    2. Neuroscience

    Presenilin mutations deregulate mitochondrial Ca2+ homeostasis and metabolic activity causing neurodegeneration in Caenorhabditis elegans

    Shaarika Sarasija et al.
    In C. elegans, presenilin functions, independent of its gamma-secretase proteolytic activity, to regulate mitochondrial metabolism by controlling ER-mitochondrial calcium transfer and, even in the absence of Abeta signaling, loss of this activity leads to neurodegeneration.
    1. Neuroscience

    Differential effects of light and feeding on circadian organization of peripheral clocks in a forebrain Bmal1 mutant

    Mariko Izumo et al.
    Conditional deletion of Bmal1 in the forebrain/SCN reveals an essential role of a functional master clock in maintaining synchronized and high amplitude rhythms of peripheral clocks.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Cellular acidosis triggers human MondoA transcriptional activity by driving mitochondrial ATP production

    Blake R Wilde et al.
    The MondoA transcription factor localizes to the outer mitochondrial membrane where it coordinates an adaptive transcriptional response to elevated cellular energy represented by high cytoplasmic glucose and high mitochondrial ATP.
    1. Genetics and Genomics
    2. Neuroscience

    Usf1, a suppressor of the circadian Clock mutant, reveals the nature of the DNA-binding of the CLOCK:BMAL1 complex in mice

    Kazuhiro Shimomura et al.
    A gene that codes for a transcription factor that is involved in lipid and carbohydrate metabolism also has a role in the regulation of circadian rhythms.
    1. Developmental Biology
    2. Chromosomes and Gene Expression

    Multiple knockout mouse models reveal lincRNAs are required for life and brain development

    Martin Sauvageau et al.
    Long intergenic noncoding RNA molecules (lincRNAs) are shown to have critical roles in mammalian development and physiology in vivo.
    1. Cancer Biology
    2. Cell Biology

    NADPH oxidase-mediated redox signaling promotes oxidative stress resistance and longevity through memo-1 in C. elegans

    Collin Yvès Ewald et al.
    Genetic analysis reveals NADPH oxidase generated reactive oxygen species as signals to re-establish cellular homeostasis during aging via activating a transcriptional response.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    An essential cell-autonomous role for hepcidin in cardiac iron homeostasis

    Samira Lakhal-Littleton et al.
    The novel role of hepcidin in cell-autonomous iron regulation changes our understanding of tissue-specific iron control, and of its interplay with systemic iron homeostasis.
    1. Cell Biology

    SUMO peptidase ULP-4 regulates mitochondrial UPR-mediated innate immunity and lifespan extension

    Kaiyu Gao et al.
    SUMOylation regulates mitochondrial UPR signaling through modulation of transcription factors DVE-1 and ATFS-1.
    1. Structural Biology and Molecular Biophysics
    2. Plant Biology

    Kinetics of the LOV domain of ZEITLUPE determine its circadian function in Arabidopsis

    Ashutosh Pudasaini et al.
    In the plant circadian clock photoreceptor ZEITLUPE, evolutionarily selected residues distinguish photocycle kinetics and allosteric signal transduction pathways to permit proper circadian timing.

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