32 results found
    1. Genetics and Genomics
    2. Neuroscience

    Gain-of-function mutations in the UNC-2/CaV2α channel lead to excitation-dominant synaptic transmission in Caenorhabditis elegans

    Yung-Chi Huang et al.
    Caenorhabditis elegans studies indicate that gain-of-function mutations in the presynaptic voltage-gated calcium, associated with familial hemiplegic migraine in humans, result in excitatory-inhibitory imbalance in the nervous system.
    1. Neuroscience

    A circuit-dependent ROS feedback loop mediates glutamate excitotoxicity to sculpt the Drosophila motor system

    Jhan-Jie Peng et al.
    Glutamate excitotoxicity induces a circuit-dependent ROS feedback loop to alter motor system integrity.
    1. Neuroscience

    Vasoactive intestinal peptide-expressing interneurons are impaired in a mouse model of Dravet syndrome

    Kevin M Goff, Ethan M Goldberg
    Vasoactive intestinal peptide-expressing GABAergic interneurons in cerebral cortex express the sodium channel subunit Nav1.1, and a defined subset of VIP interneurons are dysfunctional in a mouse model of Dravet syndrome.
    1. Neuroscience

    Sonic hedgehog signaling in astrocytes mediates cell type-specific synaptic organization

    Steven A Hill et al.
    Astrocytes modulate synaptic remodeling of developing circuits in a cell type-specific manner, with long lasting deficits in synaptic plasticity.
    1. Neuroscience

    Maintenance of homeostatic plasticity at the Drosophila neuromuscular synapse requires continuous IP3-directed signaling

    Thomas D James et al.
    Synapses employ distinct acute and chronic signaling processes in order to maintain physiologically appropriate levels of function.
    1. Neuroscience

    Ventral hippocampal projections to the medial prefrontal cortex regulate social memory

    Mary L Phillips et al.
    Input from the ventral hippocampus to the medial prefrontal cortex regulates social memory in wild type mice and atypically-strengthened input causes social memory dysfunction in Rett syndrome mice.
    1. Neuroscience

    Selective attenuation of Ether-a-go-go related K+ currents by endogenous acetylcholine reduces spike-frequency adaptation and network correlation

    Edward D Cui, Ben W Strowbridge
    Acetylcholine, a common modulator in the brain, controls spike-frequency adaptation by specifically attenuating Ether-a-go-go related K+ currents, thereby explaining many cortical network statistical changes often observed in vivo.
    1. Neuroscience

    Mutant huntingtin enhances activation of dendritic Kv4 K+ channels in striatal spiny projection neurons

    Luis Carrillo-Reid et al.
    In mouse models of Huntington's disease, striatal spiny projection neurons up-regulate dendritic potassium channels, which impairs their normal function, but a zinc finger gene therapy can reverse this deficit.
    1. Neuroscience

    Developmental NMDA receptor dysregulation in the infantile neuronal ceroid lipofuscinosis mouse model

    Kevin P Koster et al.
    NMDA receptor function is regulated by protein depalmitoylation during visual cortical maturation and is dysfunctional in infantile neuronal ceroid lipofuscinosis.
    1. Neuroscience

    Deletion of KCNQ2/3 potassium channels from PV+ interneurons leads to homeostatic potentiation of excitatory transmission

    Heun Soh et al.
    Loss of potassium channel activity from fast-spiking interneurons increases their excitability leading to unexpectedly increased fast excitatory transmission and seizure susceptibility.

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