2,596 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. Neuroscience

    A circuit mechanism for decision-making biases and NMDA receptor hypofunction

    Sean Edward Cavanagh et al.
    Ketamine, an NMDA receptor antagonist and experimental model for schizophrenia, produces decision-making deficits in monkeys, which are predicted by a lowering of cortical excitation-inhibition balance in a spiking circuit model.
    1. Cell Biology

    Single-cell dynamics of pannexin-1-facilitated programmed ATP loss during apoptosis

    Hiromi Imamura et al.
    Cleavage of pannexin-1 channel by caspases facilitates the loss of intracellular ATP level and attenuates glycolytic metabolism of apoptotic cells.
    1. Physics of Living Systems

    A mechanism for hunchback promoters to readout morphogenetic positional information in less than a minute

    Jonathan Desponds et al.
    Maternal positional information in the fly embryo can be read rapidly in spite of the gene-expression bottleneck and general examples of regulatory architectures that combine speed and accuracy are provided.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    ARID1A loss in adult hepatocytes activates β-catenin-mediated erythropoietin transcription

    Rozenn Riou et al.
    A chromatin remodeling factor cooperates with Wnt signaling pathway to transcribe erythropoietin in the adult liver, inducing its secretion and a dramatic erythropoiesis in the spleen.
    1. Plant Biology

    The manifold actions of signaling peptides on subcellular dynamics of a receptor specify stomatal cell fate

    Xingyun Qi et al.
    A binary cell fate decision to be or not to be stomata is regulated by multiple peptide ligands, each triggering a unique subcellular dynamics of their shared receptor.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Electron tomography visualization of HIV-1 fusion with target cells using fusion inhibitors to trap the pre-hairpin intermediate

    Mark S Ladinsky et al.
    Visualization of HIV-1 fusion by trapping the prehairpin intermediate.
    1. Immunology and Inflammation
    2. Neuroscience

    A new genetic strategy for targeting microglia in development and disease

    Gabriel L McKinsey et al.
    P2ry12-CreER robustly and specifically labels microglia in fate-mapping and ribosomal profiling experiments, revealing new markers for myeloid subpopulations in the central nervous system.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    EphA7 promotes myogenic differentiation via cell-cell contact

    Laura L Arnold et al.
    The juxtacrine signaling molecule EphA7, when expressed on terminally-differentiated myocytes, non-cell-autonomously induces adjacent myoblasts to also commit to terminal differentiation leading to rapid coordinated differentiation across the entire population.
    1. Developmental Biology
    2. Neuroscience

    Extrinsic activin signaling cooperates with an intrinsic temporal program to increase mushroom body neuronal diversity

    Anthony M Rossi, Claude Desplan
    The activin ligand myoglianin acts as a temporal extrinsic cue to regulate the intrinsic temporal factor Imp in mushroom body neuroblasts, increasing neuronal diversity by specifying the α’β’ fate.

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