11,563 results found
    1. Neuroscience

    Optical detection of three modes of endocytosis at hippocampal synapses

    Natali L Chanaday, Ege T Kavalali
    Single synaptic vesicle imaging shows that kinetically distinct endocytic pathways are differentially regulated by calcium and temperature, and influence the fidelity of synaptic vesicle protein retrieval.
    1. Neuroscience

    Spontaneous and evoked neurotransmission are partially segregated at inhibitory synapses

    Patricia M Horvath et al.
    GABAergic postsynaptic responses mediated by spontaneous and evoked neurotransmitter release are partially segregated, suggesting they may serve distinct roles in neuronal signaling.
    1. Epidemiology and Global Health

    External validation of postnatal gestational age estimation using newborn metabolic profiles in Matlab, Bangladesh

    Malia SQ Murphy et al.
    Gestational age estimation models derived from newborn screening bloodspot samples are effective on data obtained from both heel prick and cord blood samples in low-resource settings.
    1. Neuroscience

    Striatal fast-spiking interneurons selectively modulate circuit output and are required for habitual behavior

    Justin K O'Hare et al.
    Fast-spiking interneurons of the dorsolateral striatum are found to provide a microcircuit mechanism driving the circuit properties and behavioral adaptations that characterize habit.
    1. Developmental Biology
    2. Neuroscience

    Maintenance of age in human neurons generated by microRNA-based neuronal conversion of fibroblasts

    Christine J Huh et al.
    MicroRNA-based direct conversion of human fibroblasts to neurons is applicable to fibroblasts from donors ranging in age from neonatal to centenarian, allowing the generation of neurons that maintain the age-associated signatures of the starting fibroblasts.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Polypyrimidine tract binding protein 1 protects mRNAs from recognition by the nonsense-mediated mRNA decay pathway

    Zhiyun Ge et al.
    The RNA-binding protein PTBP1 is recruited to sites near stop codons in retroviral and human mRNAs, shielding them from detection and degradation by the nonsense-mediated mRNA decay pathway.
    1. Epidemiology and Global Health

    Longitudinal trajectories, correlations and mortality associations of nine biological ages across 20-years follow-up

    Xia Li et al.
    Biological ages have the potential to provide aging-related information beyond chronological age and can be predictive of mortality independently of both chronological age and different types of biological ages.
    1. Microbiology and Infectious Disease

    CD163 and pAPN double-knockout pigs are resistant to PRRSV and TGEV and exhibit decreased susceptibility to PDCoV while maintaining normal production performance

    Kui Xu et al.
    The double-gene-knockout pig is a valuable model to help understand the mechanisms of CD163 and pAPN in the infection of multiple viruses and offers excellent breeding materials for disease-resistant pigs.
    1. Structural Biology and Molecular Biophysics

    Valid molecular dynamics simulations of human hemoglobin require a surprisingly large box size

    Krystel El Hage et al.
    Simulations of the unliganded human hemoglobin tetramer, which for the first time yield a thermodynamically stable system, cast doubts on the use of standard solvent box sizes for molecular dynamics studies of biological macromolecules.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Phosphatidylinositol 3-kinase and COPII generate LC3 lipidation vesicles from the ER-Golgi intermediate compartment

    Liang Ge et al.
    Building on previous work (Ge et al., 2013), it is shown that the ER-Golgi intermediate compartment is a platform for the production of COPII vesicles as precursor membranes for the lipidation of LC3, which is an essential step in autophagosome biogenesis.

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