197 results found
    1. Evolutionary Biology
    2. Genetics and Genomics

    Immune genes are hotspots of shared positive selection across birds and mammals

    Allison J Shultz, Timothy B Sackton
    Pathogens, particularly viruses, target the same genes over deep evolutionary time, resulting in shared signatures of positive selection and transcriptional responses at the same genes.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    A coarse-grained NADH redox model enables inference of subcellular metabolic fluxes from fluorescence lifetime imaging

    Xingbo Yang, Gloria Ha, Daniel J Needleman
    Mitochondrial metabolic fluxes display a subcellular spatial gradient within a single mouse oocyte, and the fluxes are not controlled by nutrient supply or energy demand of the cell, but by the intrinsic rates of mitochondrial respiration.
    1. Cell Biology

    Impaired lysosomal acidification triggers iron deficiency and inflammation in vivo

    King Faisal Yambire, Christine Rostosky ... Nuno Raimundo
    Impaired lysosomal acidification results in retention of iron inside lysosomes, triggering functional iron deficiency, dysfunctional mitochondria (especially mtDNA loss), and inflammation in vivo in a mouse model of lysosomal disease.
    1. Cell Biology

    Cryo-plasma FIB/SEM volume imaging of biological specimens

    Maud Dumoux, Thomas Glen ... Michael Grange
    Implementation and characterisation of plasma-focused ion beams for volumetric imaging of cryogenically preserved cells and tissues for ultrastructural examination in their native state.
    1. Stem Cells and Regenerative Medicine

    An in vitro model for vitamin A transport across the human blood–brain barrier

    Chandler B Est, Regina M Murphy
    A human stem cell-derived in vitro model provided novel insights into the mechanisms of retinoid accumulation in, and permeation across, the blood–brain barrier.
    1. Neuroscience

    Behavioural pharmacology predicts disrupted signalling pathways and candidate therapeutics from zebrafish mutants of Alzheimer’s disease risk genes

    François Kroll, Joshua Donnelly ... Jason Rihel
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    1. Immunology and Inflammation
    2. Neuroscience

    Differential accumulation of storage bodies with aging defines discrete subsets of microglia in the healthy brain

    Jeremy Carlos Burns, Bunny Cotleur ... Michael Mingueneau
    Two novel subsets of microglia identified by their unique autofluorescence profiles differ in their subcellular organization, proteomic signatures and in their response to aging and lysosomal dysfunction.
    1. Chromosomes and Gene Expression

    Monoallelically expressed noncoding RNAs form nucleolar territories on NOR-containing chromosomes and regulate rRNA expression

    Qinyu Hao, Minxue Liu ... Kannanganattu V Prasanth
    A novel family of nucleolus-enriched ncRNAs forms allele-specific territories on the nucleolar organizing region (NOR)-containing acrocentric chromosomes.
    1. Cell Biology
    2. Neuroscience

    KLC4 shapes axon arbors during development and mediates adult behavior

    Elizabeth M Haynes, Korri H Burnett ... Mary C Halloran
    Newly identified roles for the kinesin-1 light chain subunit KLC4 in patterning developing axon arbors, regulating microtubule dynamics and influencing behavior of larval and adult zebrafish.
    1. Neuroscience

    α1-Adrenergic receptor–PKC–Pyk2–Src signaling boosts L-type Ca2+ channel CaV1.2 activity and long-term potentiation in rodents

    Kwun Nok Mimi Man, Peter Bartels ... Johannes W Hell
    The α1-adrenergic receptor augments the activity of the L-type Ca2+ channel CaV1.2 through PKC and the tyrosine kinases Pyk2 and Src and thereby synaptic plasticity.

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