2,307 results found
    1. Neuroscience

    Paradoxical network excitation by glutamate release from VGluT3+ GABAergic interneurons

    Kenneth A Pelkey et al.
    Glutamate cotransmission from a subset of cortical GABAergic interneurons can promote network hyperexcitability.
    1. Neuroscience

    Supramammillary nucleus synchronizes with dentate gyrus to regulate spatial memory retrieval through glutamate release

    Yadong Li et al.
    Multi-fiber photometry recording and circuit-based manipulation in vivo identify a long-range SuM-DG circuit linking two highly correlated subcortical regions to regulate spatial memory retrieval through SuM glutamate transmission.
    1. Structural Biology and Molecular Biophysics

    Large domain movements through the lipid bilayer mediate substrate release and inhibition of glutamate transporters

    Xiaoyu Wang, Olga Boudker
    Substrate releasing or inhibitor binding on the intracellular side of a glutamate transporter homologue require movements of the transport domain through the lipid membrane, which undergoes adaptive deformations.
    1. Neuroscience

    Glutamate is required for depression but not potentiation of long-term presynaptic function

    Zahid Padamsey et al.
    Electrophysiological and optical analysis of neurotransmitter release at central synapses reveals that glutamate signalling is not required for the long-term potentiation (LTP) of presynaptic function, and instead only promotes presynaptic long-term depression (LTD).
    1. Neuroscience

    Morphine disinhibits glutamatergic input to VTA dopamine neurons and promotes dopamine neuron excitation

    Ming Chen et al.
    Experiments examining the actions of morphine on single neurons from one of the brain's reward centers, the VTA, reveal the mechanism by which the drug exerts its hedonic effects.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Diversity and plasticity in Rab GTPase nucleotide release mechanism has consequences for Rab activation and inactivation

    Lars Langemeyer et al.
    Analysis of multiple guanine exchange factors shows that Rab activation can occur via a number of mechanistically distinct GDP-release pathways.
    1. Neuroscience

    Estrogenic-dependent glutamatergic neurotransmission from kisspeptin neurons governs feeding circuits in females

    Jian Qiu et al.
    Estrogen increases hypothalamic arcuate kisspeptin neuronal excitability and glutamate release to coordinate autonomic functions for maximizing reproductive success.
    1. Neuroscience

    High-frequency stimulation-induced peptide release synchronizes arcuate kisspeptin neurons and excites GnRH neurons

    Jian Qiu et al.
    Kisspeptin neurons in the hypothalamus release peptide and amino acid neurotransmitters that work together to coordinate the activity of gonadotropin-releasing hormone neurons and subsequent release of reproductive hormones.
    1. Cell Biology
    2. Neuroscience

    A proline-rich motif on VGLUT1 reduces synaptic vesicle super-pool and spontaneous release frequency

    Xiao Min Zhang et al.
    In mammals, the vesicular glutamate transporter 1 acquired a proline-rich sequence that negatively regulates the spontaneous release of glutamate by reducing the exchange of synaptic vesicles along the axon.
    1. Neuroscience

    An essential role of acetylcholine-glutamate synergy at habenular synapses in nicotine dependence

    Silke Frahm et al.
    Local elimination of acetylcholine synthesis in habenular neurons demonstrates a key role for vesicular synergy and neurotransmitter co-release in nicotine dependence.

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