100 results found
    1. Neuroscience

    Semaphorin 5A inhibits synaptogenesis in early postnatal- and adult-born hippocampal dentate granule cells

    Yuntao Duan et al.
    Mice that lack the autism susceptibility gene Semaphorin 5A show excess excitatory synapse formation in dentate granule neurons and also altered social behavior, adding to evidence that a surplus of synapses contributes to the behavioral changes observed in autism spectrum disorders.
    1. Neuroscience

    Neuromodulation of excitatory synaptogenesis in striatal development

    Yevgenia Kozorovitskiy et al.
    Protein kinase A regulates the rapid, activity-dependent genesis of excitatory synapses during striatal development.
    1. Cell Biology
    2. Neuroscience

    Clarinet (CLA-1), a novel active zone protein required for synaptic vesicle clustering and release

    Zhao Xuan et al.
    Clarinet, a novel C. elegans active zone protein with homology to vertebrate Piccolo and Rim, uses its different isoforms for diverse functions, including synaptic vesicle clustering, vesicle release and synaptogenesis.
    1. Cell Biology
    2. Neuroscience

    Astrocytes refine cortical connectivity at dendritic spines

    W Christopher Risher et al.
    Spines with multiple excitatory contacts are potential sites for competition between thalamic and cortical axons, which is regulated by the astrocytes through the secreted synaptogenic protein hevin.
    1. Developmental Biology
    2. Neuroscience

    A Gata3–Mafb transcriptional network directs post-synaptic differentiation in synapses specialized for hearing

    Wei-Ming Yu et al.
    Genetic studies in mice identify the transcription factor MafB as a potent regulator of specific features of the synapses underlying hearing.
    1. Neuroscience

    Neurotrophin-3 regulates ribbon synapse density in the cochlea and induces synapse regeneration after acoustic trauma

    Guoqiang Wan et al.
    Overexpression of the growth factor neurotrophin-3 helps to repair noise-induced damage in the mouse inner ear by promoting the regeneration of damaged synapses.
    1. Neuroscience

    Neurexin and Neuroligin-based adhesion complexes drive axonal arborisation growth independent of synaptic activity

    William D Constance et al.
    Axonal arborisation growth is regulated by dynamic, focal localisations of Neurexin and Neuroligin that provide stability for filopodia, enabling a 'stick and grow'-based mechanism, wholly independent of synapse formation.
    1. Neuroscience

    Ephrin-B3 controls excitatory synapse density through cell-cell competition for EphBs

    Nathan T Henderson et al.
    Competition between neurons for postsynaptic ephrin-B3 controls distribution of a limited pool of synapses and defines a novel trans-synaptic mechanism enabling neurons to set the number of synapses they receive.
    1. Neuroscience

    A genetic basis for molecular asymmetry at vertebrate electrical synapses

    Adam C Miller et al.
    Electrical synapses are neuronal, gap-junction-based connections found throughout the nervous system that, in the escape circuit of zebrafish, are composed of molecularly distinct pre- and postsynaptic junction forming proteins that are required for behavioral performance.
    1. Neuroscience

    LRRTM1 underlies synaptic convergence in visual thalamus

    Aboozar Monavarfeshani et al.
    The synaptic cell adhesion molecule, leucine-rich repeat transmembrane neuronal 1 (LRRTM1), plays an important role in the establishment of retinal convergence onto relay cells in mouse visual thalamus.

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