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    1. Neuroscience

    Early intrinsic hyperexcitability does not contribute to motoneuron degeneration in amyotrophic lateral sclerosis

    Félix Leroy et al.
    Contrary to a long-standing hypothesis, the neuronal death that leads to muscle wastage in amyotrophic lateral sclerosis does not result from overactivity of those neurons during development.
    1. Developmental Biology

    Calcium handling precedes cardiac differentiation to initiate the first heartbeat

    Richard CV Tyser et al.
    High-resolution live imaging reveals how and when the mouse heart first starts to beat during development and how the onset of beating impacts on heart muscle cell maturation and heart formation.
    1. Cell Biology
    2. Physics of Living Systems

    Metabolic constraints drive self-organization of specialized cell groups

    Sriram Varahan et al.
    In a developing yeast colony, cells go from homogeneous states to spatially organized, specialized metabolic states, and the new metabolic states depend on resources produced by the original state.
    1. Chromosomes and Gene Expression

    A CTP-dependent gating mechanism enables ParB spreading on DNA

    Adam SB Jalal et al.
    A structural and biochemical approach shows that CTP binding and hydrolysis regulate nucleation, spreading, and recycling of a chromosome segregation protein ParB.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Virus infection of the CNS disrupts the immune-neural-synaptic axis via induction of pleiotropic gene regulation of host responses

    Olga A Maximova et al.
    Virus infection of the central nervous system disrupts the homeostasis of the immune-neural-synaptic axis via induction of pleiotropic genes with an unintended off-target negative impact on the neurotransmission.
    1. Ecology
    2. Microbiology and Infectious Disease

    The diversity and function of sourdough starter microbiomes

    Elizabeth A Landis et al.
    In the most comprehensive survey of sourdough starter biodiversity, this work identifies processes that control the diversity and function of sourdough microbiomes at a continental scale.
    1. Cell Biology
    2. Developmental Biology

    Osmolarity-independent electrical cues guide rapid response to injury in zebrafish epidermis

    Andrew S Kennard, Julie A Theriot
    Skin cells in zebrafish use sodium chloride-dependent electrical gradients to sense tissue injury and guide migration in the appropriate direction to close the wound.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Delta glutamate receptor conductance drives excitation of mouse dorsal raphe neurons

    Stephanie C Gantz et al.
    In mouse brain slices, native delta glutamate receptors carry ionic current and underlie the α1-adrenergic receptor-mediated depolarization of dorsal raphe neurons that drives action potential firing in vivo.
    1. Neuroscience

    Relaxation of synaptic inhibitory events as a compensatory mechanism in fetal SOD spinal motor networks

    Pascal Branchereau et al.
    Electrophysiological and simulation approaches show that a chloride-related longer relaxation of the inhibitory synaptic events partially compensates the early defect in the chloride homeostasis detected in fetal SOD spinal motoneurons.
    1. Microbiology and Infectious Disease

    An Aedes aegypti-associated fungus increases susceptibility to dengue virus by modulating gut trypsin activity

    Yesseinia I Angleró-Rodríguez et al.
    Talaromyces (Tsp_PR) fungus render Aedes aegypti mosquitoes more susceptible to dengue virus infection through secreted molecules that impair midgut digestive enzyme transcription and activity.