653 results found
    1. Neuroscience

    α1-Adrenergic receptor–PKC–Pyk2–Src signaling boosts L-type Ca2+ channel CaV1.2 activity and long-term potentiation in rodents

    Kwun Nok Mimi Man, Peter Bartels ... Johannes W Hell
    The α1-adrenergic receptor augments the activity of the L-type Ca2+ channel CaV1.2 through PKC and the tyrosine kinases Pyk2 and Src and thereby synaptic plasticity.
    1. Neuroscience

    Group III metabotropic glutamate receptors gate long-term potentiation and synaptic tagging/capture in rat hippocampal area CA2

    Ananya Dasgupta, Yu Jia Lim ... Sreedharan Sajikumar
    Group III metabotropic glutamate receptor inhibition facilitates synaptic plasticity in the plasticity-resistant synapses of hippocampal area CA2, a brain region critical for social memory.
    1. Neuroscience

    cAMP−EPAC−PKCε−RIM1α signaling regulates presynaptic long-term potentiation and motor learning

    Xin-Tai Wang, Lin Zhou ... Ying Shen
    Mouse models with specific presynaptic knockout demonstrate that Rim1α is subjected to threonine phosphorylation by a novel EPAC-PKCε module, which is essential to presynaptic transmitter release, required for the induction of presynaptic LTP, and critical for motor learning.
    1. Neuroscience

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

    Zahid Padamsey, Rudi Tong, Nigel Emptage
    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

    Dendritic spikes in hippocampal granule cells are necessary for long-term potentiation at the perforant path synapse

    Sooyun Kim, Yoonsub Kim ... Won-Kyung Ho
    A novel mechanism of local plasticity in the distal dendrites of hippocampal granule cells.
    1. Neuroscience

    The fate of hippocampal synapses depends on the sequence of plasticity-inducing events

    J Simon Wiegert, Mauro Pulin ... Thomas G Oertner
    Non-invasive optogenetic induction of synaptic plasticity revealed that long-term potentiation and long-term depression alter the chances of a synapse to survive the next seven days.
    1. Neuroscience

    Dendritic sodium spikes are required for long-term potentiation at distal synapses on hippocampal pyramidal neurons

    Yujin Kim, Ching-Lung Hsu ... Nelson Spruston
    At distal synapses onto hippocampal CA1 pyramidal neurons, synaptic plasticity is dependent on dendritically initiated sodium spikes, thus establishing a new role for voltage-gated sodium channels in the dendrites that may have important implications for how learning rules are implemented.
    1. Neuroscience

    Synaptic plasticity and cognitive function are disrupted in the absence of Lrp4

    Andrea M Gomez, Robert C Froemke, Steven J Burden
    Lrp4 mutant mice display profound deficits in cognitive tasks that assess learning and memory with disruptions in the subcellular organization of synaptic inputs and synaptic plasticity in the hippocampus.
    1. Neuroscience

    Long-term potentiation is independent of the C-tail of the GluA1 AMPA receptor subunit

    Javier Díaz-Alonso, Wade Morishita ... Roger A Nicoll
    Despite being the key element of the classic model for excitatory synaptic plasticity, the cytoplasmic AMPA receptor C-tail is not required for hippocampal LTP.
    1. Neuroscience

    Synaptic memory requires CaMKII

    Wucheng Tao, Joel Lee ... Roger A Nicoll
    Physiology studies demonstrate that CaMKII is a molecular storage device.

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