333 results found
    1. Neuroscience

    Frequency- and spike-timing-dependent mitochondrial Ca2+ signaling regulates the metabolic rate and synaptic efficacy in cortical neurons

    Ohad Stoler, Alexandra Stavsky ... Ilya Fleidervish
    Optical recordings from L5 cortical pyramidal neurons expressing mitochondria-targeted Ca2+ indicator, mitoGCaMP6m, reveal compartment-specific mitochondrial responses to spike firing and synaptic activity.
    1. Cell Biology

    Dysregulated Ca2+ signaling, fluid secretion, and mitochondrial function in a mouse model of early Sjögren’s disease

    Kai-Ting Huang, Larry E Wagner ... David I Yule
    In a mouse model of Sjogren's disease, mitochondrial function and Ca2+ signaling are disrupted resulting in altered coupling between Ca2+ release and Ca2+ activated Cl- channels and salivary gland hypofunction.
    1. Neuroscience

    Septal cholinergic input to CA2 hippocampal region controls social novelty discrimination via nicotinic receptor-mediated disinhibition

    Domenico Pimpinella, Valentina Mastrorilli ... Marilena Griguoli
    Acetylcholine, released from cholinergic fibers originating from the medial septum, shapes social memory, and controls the CA2 hippocampal circuit via nicotinic receptors localized on GABAergic interneurons.
    1. Plant Biology

    A dual function of the IDA peptide in regulating cell separation and modulating plant immunity at the molecular level

    Vilde Olsson Lalun, Maike Breiden ... Melinka A Butenko
    A molecular investigation on the role of the peptide ligand inflorescence deficient in abscission (IDA) in regulating immunity and development during cell separation in Arabidopsis thaliana.
    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

    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

    Impaired astrocytic Ca2+ signaling in awake-behaving Alzheimer’s disease transgenic mice

    Knut Sindre Åbjørsbråten, Gry HE Syverstad Skaaraas ... Rune Enger
    Noradrenaline-mediated astrocytic Ca2+ signaling in behavior is reduced in awake-behaving tg-ArcSwe Alzheimer's disease transgenic mice.
    1. Cell Biology
    2. Neuroscience

    AKT isoforms have distinct hippocampal expression and roles in synaptic plasticity

    Josien Levenga, Helen Wong ... Charles A Hoeffer
    Three distinct AKT isoforms are found in the brain and show dissimilar patterns of expression, differential roles in the expression of synaptic plasticity, and different roles in neuronal signaling.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Ca2+ signaling driving pacemaker activity in submucosal interstitial cells of Cajal in the murine colon

    Salah A Baker, Wesley A Leigh ... Kenton M Sanders
    An optogenetic dual-color Ca2+-imaging approach shows how submucosal pacemaker-cells, interstitial cells of Cajal, modulate smooth-muscle responses and drive colonic motility via complex Ca2+ signaling.
    1. Computational and Systems Biology
    2. Developmental Biology

    The MODY-associated KCNK16 L114P mutation increases islet glucagon secretion and limits insulin secretion resulting in transient neonatal diabetes and glucose dyshomeostasis in adults

    Arya Y Nakhe, Prasanna K Dadi ... David A Jacobson
    A mouse model of maturity-onset diabetes of the young illuminates that overactive TALK-1 channels limit β-cell calcium influx through membrane potential hyperpolarization, which blunts insulin secretion and causes glucose intolerance.

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