739 results found
    1. Neuroscience

    Memory recall involves a transient break in excitatory-inhibitory balance

    Renée S Koolschijn et al.
    Hippocampal activity during memory recall predicts a transient increase in the ratio between neocortical glutamate and GABA, thereby allowing otherwise dormant memories to be released.
    1. Cell Biology
    2. Developmental Biology

    MACF1 controls skeletal muscle function through the microtubule-dependent localization of extra-synaptic myonuclei and mitochondria biogenesis

    Alireza Ghasemizadeh et al.
    Maintenance of peripheral myonuclei patterning in skeletal myofibers is dependent on the regulation of microtubules dynamic and nuclei motion and is essential for proper neuromuscular junction integrity and mitochondria homeostasis.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Multiple introductions of multidrug-resistant typhoid associated with acute infection and asymptomatic carriage, Kenya

    Samuel Kariuki et al.
    Carriage of MDR S. Typhi H58 sublineages that also cause acute disease provides understanding of the transmission dynamics of typhoid fever and maintenance of local pathogen populations in Kenya children.
    1. Microbiology and Infectious Disease

    Cryo-EM reveals new species-specific proteins and symmetry elements in the Legionella pneumophila Dot/Icm T4SS

    Michael J Sheedlo et al.
    Structural analysis of the type IV secretion system purified from Legionella pneumophila uncovers new complex components and symmetry mismatches.
    1. Cancer Biology
    2. Medicine

    Mutation analysis links angioimmunoblastic T-cell lymphoma to clonal hematopoiesis and smoking

    Shuhua Cheng et al.
    Comparative analysis establishes genetic links among angioimmunoblastic T-cell lymphoma (AITL), clonal hematopoiesis, and concomitant hematologic malignancies, and provides insights into the cell of origin, etiology, and biomarker discovery for AITL.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Enhanced Cas12a multi-gene regulation using a CRISPR array separator

    Jens P Magnusson et al.
    Cas12a CRISPR arrays are sensitive to the GC content of their spacers, but AT-rich separator sequences successfully remove this disruptive effect and enable enhanced multiplexed gene targeting and activation.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Inducible and reversible inhibition of miRNA-mediated gene repression in vivo

    Gaspare La Rocca et al.
    A new genetically engineered mouse strain is described in which miRNA activity can be acutely and reversibly inhibited, showing that in a subset of adult tissues miRNA activity is dispensable under homeostatic conditions but becomes essential during tissue regeneration.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    A prion accelerates proliferation at the expense of lifespan

    David M Garcia et al.
    In its capacity to switch into a heritable, prionogenic form, a conserved RNA-modifying enzyme epigenetically alters fundamental growth, aging, and protein synthesis properties of eukaryotic cells.
    1. Developmental Biology
    2. Neuroscience

    Spinal lumbar dI2 interneurons contribute to stability of bipedal stepping

    Baruch Haimson et al.
    Spinal dI2 interneurons relay peripheral and intraspinal feedback to premotor networks in the spinal cord and the cerebellum to ensure the stability of bipedal stepping.
    1. Cell Biology
    2. Neuroscience

    Glycolytic preconditioning in astrocytes mitigates trauma-induced neurodegeneration

    Rene Solano Fonseca et al.
    Promoting a Warburg-like shift in astrocytic metabolism through reduced mitochondrial electron transport accommodates the energetic burden caused by brain trauma without overwhelming cellular respiration and redox to salvage dopaminergic neurons.

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