1,320 results found
    1. Computational and Systems Biology
    2. Medicine

    A computational model predicts sex-specific responses to calcium channel blockers in mammalian mesenteric vascular smooth muscle

    Gonzalo Hernandez-Hernandez, Samantha C O'Dwyer ... Colleen E Clancy
    A computer model predicts different mechanisms of blood pressure regulation and effective hypertensive therapy for males and females, thereby serving as a foundational tool for improved treatment precision.
    1. Chromosomes and Gene Expression
    2. Medicine

    A deleterious gene-by-environment interaction imposed by calcium channel blockers in Marfan syndrome

    Jefferson J Doyle, Alexander J Doyle ... MIBAVA Leducq Consortium
    Calcium channel blockers accelerate aortic aneurysm and cause premature aortic rupture in a mouse model of Marfan syndrome through protein kinase C-mediated activation of extracellular signal-regulated kinase.
    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. Cell Biology

    β-blockers augment L-type Ca2+ channel activity by targeting spatially restricted β2AR signaling in neurons

    Ao Shen, Dana Chen ... Yang K Xiang
    FRET biosensor-based measurement of cAMP signaling and single-channel recording reveal that β-blockers trigger local activation of adrenergic receptors and calcium channels in primary neurons.
    1. Neuroscience

    Ca2+ entry through NaV channels generates submillisecond axonal Ca2+ signaling

    Naomi AK Hanemaaijer, Marko A Popovic ... Maarten HP Kole
    High-speed calcium imaging from the axon initial segment shows that sodium channels are in part permeable to calcium ions.
    1. Neuroscience

    Novel charged sodium and calcium channel inhibitor active against neurogenic inflammation

    Seungkyu Lee, Sooyeon Jo ... Bruce P Bean
    A cationic molecule derived from an uncharged Cav2.2 calcium channel inhibitor powerfully inhibits both sodium and calcium channels with extracellular application and inhibits both pain and neurogenic inflammation.
    1. Cell Biology
    2. Computational and Systems Biology

    Development, calibration, and validation of a novel human ventricular myocyte model in health, disease, and drug block

    Jakub Tomek, Alfonso Bueno-Orovio ... Blanca Rodriguez
    A computer model of human cardiomyocyte was produced and validated on independent datasets, overcoming shortcomings of its predecessors, also yielding broadly relevant insights and results on major ionic currents.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Atypical calcium regulation of the PKD2-L1 polycystin ion channel

    Paul G DeCaen, Xiaowen Liu ... David E Clapham
    Outward calcium ion currents desensitize the human PKD2-L1 ion channel via a mechanism that is independent of cytosolic motifs.
    1. Neuroscience

    Blocking Kir6.2 channels with SpTx1 potentiates glucose-stimulated insulin secretion from murine pancreatic β cells and lowers blood glucose in diabetic mice

    Yajamana Ramu, Jayden Yamakaze ... Zhe Lu
    The centipede peptide toxin SpTx1 blocks the pore of ATP-sensitive potassium channels in pancreatic β cells to markedly enhance insulin secretion and mitigate hyperglycemia in diabetic mice insensitive to the anti-diabetic sulfonylurea glibenclamide.
    1. Computational and Systems Biology
    2. Neuroscience

    Nonlinearities between inhibition and T-type calcium channel activity bidirectionally regulate thalamic oscillations

    Adam C Lu, Christine Kyuyoung Lee ... Mark P Beenhakker
    A multi-scale integration of experimental and computational approaches shows how a non-linear dependence of T-type calcium channel gating on GABAB receptor activity regulates thalamic network oscillations.

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