Search Results - "Morad, Martin"
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Calcium Signaling Consequences of RyR2-S4938F Mutation Expressed in Human iPSC-Derived Cardiomyocytes
Published in International journal of molecular sciences (18-10-2023)“…Type-2 ryanodine receptor (RyR2) is the major Ca release channel of the cardiac sarcoplasmic reticulum (SR) that controls the rhythm and strength of the…”
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Regulation of Ca2+ signaling by acute hypoxia and acidosis in cardiomyocytes derived from human induced pluripotent stem cells
Published in Cell calcium (Edinburgh) (01-03-2019)“…•Human Induced Pluripotent Stem Cell–derived CMs express two cell populations based on inactivation kinetics of L-type ICa (τi 20ms & 50ms).•The diverse…”
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Pressure–flow‘‐triggered intracellular Ca2+ transients in rat cardiac myocytes: possible mechanisms and role of mitochondria
Published in The Journal of physiology (01-03-2008)“…Cardiac myocytes, in the intact heart, are exposed to shear/fluid forces during each cardiac cycle. Here we describe a novel Ca2+ signalling pathway, generated…”
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Regulation of Ca2+ signaling by acute hypoxia and acidosis in rat neonatal cardiomyocytes
Published in Journal of molecular and cellular cardiology (01-01-2018)“…Ischemic heart disease is an arrhythmogenic condition, accompanied by hypoxia, acidosis, and impaired Ca2+ signaling. Here we report on effects of acute…”
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Fast-Response Calmodulin-Based Fluorescent Indicators Reveal Rapid Intracellular Calcium Dynamics
Published in Scientific reports (03-11-2015)“…Faithful reporting of temporal patterns of intracellular Ca 2+ dynamics requires the working range of indicators to match the signals. Current genetically…”
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In vitro Modeling of Ryanodine Receptor 2 Dysfunction Using Human Induced Pluripotent Stem Cells
Published in Cellular physiology and biochemistry (01-01-2011)“…Background/Aims: Induced pluripotent stem (iPS) cells generated from accessible adult cells of patients with genetic diseases open unprecedented opportunities…”
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Shear Fluid-induced Ca2+ Release and the Role of Mitochondria in Rat Cardiac Myocytes
Published in Annals of the New York Academy of Sciences (01-03-2008)“…Cardiac myocyte contraction occurs when Ca2+ influx through voltage‐gated L‐type Ca2+ channels causes Ca2+ release from ryanodine receptors of the sarcoplasmic…”
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Diversity of mitochondrial Ca2+ signaling in rat neonatal cardiomyocytes: Evidence from a genetically directed Ca2+ probe, mitycam-E31Q
Published in Cell calcium (Edinburgh) (01-09-2014)“…Graphical abstract…”
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Intracellular Ca2+ oscillations, a potential pacemaking mechanism in early embryonic heart cells
Published in The Journal of general physiology (01-08-2007)“…Early (E9.5-E11.5) embryonic heart cells beat spontaneously, even though the adult pacemaking mechanisms are not yet fully established. Here we show that in…”
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Diversity of Ca2+ Signaling in Developing Cardiac Cells
Published in Annals of the New York Academy of Sciences (01-10-2006)“…: During embryonic and postnatal development, the mammalian heart undergoes rapid morphological changes with cellular differentiation that at the…”
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Diversity of atrial local Ca2+ signalling: evidence from 2-D confocal imaging in Ca2+-buffered rat atrial myocytes
Published in The Journal of physiology (15-09-2005)“…Atrial myocytes, lacking t-tubules, have two functionally separate groups of ryanodine receptors (RyRs): those at the periphery colocalized with…”
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Ca2+ current-gated focal and local ca2+ release in rat atrial myocytes: evidence from rapid 2-d confocal imaging
Published in The Journal of physiology (01-09-2002)“…In atrial myocytes immunocytochemistry has shown two groups of ryanodine receptors (RyRs): those at the periphery colocalized with dihydropyridine receptors…”
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Two-Dimensional Confocal Images of Organization, Density, and Gating of Focal Ca2+Release Sites in Rat Cardiac Myocytes
Published in Proceedings of the National Academy of Sciences - PNAS (01-09-1998)“…In cardiac myocytes Ca2+cross-signaling between Ca2+channels and ryanodine receptors takes place by exchange of Ca2+signals in microdomains surrounding dyadic…”
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14
Gender difference in the cycle length-dependent QT and potassium currents in rabbits
Published in The Journal of pharmacology and experimental therapeutics (01-05-1998)“…Women are known to have a longer electrocardiographic Q-T than men, which may contribute to their being at greater risk of developing drug-induced polymorphic…”
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Ca2+ signaling of human pluripotent stem cells-derived cardiomyocytes as compared to adult mammalian cardiomyocytes
Published in Cell calcium (Edinburgh) (01-09-2020)“…[Display omitted] •Functional comparison of Ca2+ signaling parameters in hiPSC-CMs and adult mammalian cardiomyocytes.•Ca2+ signaling of hiPSC-CMs as a model…”
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Remodelling of ionic currents in hypertrophied and failing hearts of transgenic mice overexpressing calsequestrin
Published in The Journal of physiology (01-06-2000)“…Overexpression of cardiac calsequestrin (CSQ) impairs Ca 2+ signalling in murine myocytes, leading to marked cardiac hypertrophy. Here we report on…”
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Multimodality of Ca2+ Signaling in Rat Atrial Myocytes
Published in Annals of the New York Academy of Sciences (01-06-2005)“…: It has been suggested that the multiplicity of Ca2+ signaling pathways in atrial myocytes may contribute to the variability of its function. This article…”
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Inotropic Stimulation Induces Cardiac Dysfunction in Transgenic Mice Expressing a Troponin T (I79N) Mutation Linked to Familial Hypertrophic Cardiomyopathy
Published in The Journal of biological chemistry (30-03-2001)“…The cardiac troponin T (TnT) I79N mutation has been linked to familial hypertrophic cardiomyopathy and a high incidence of sudden death, despite causing little…”
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Point mutations in RyR2 Ca2+-binding residues of human cardiomyocytes cause cellular remodelling of cardiac excitation contraction-coupling
Published in Cardiovascular research (27-02-2024)“…Abstract Aims CRISPR/Cas9 gene edits of cardiac ryanodine receptor (RyR2) in human-induced pluripotent stem cell derived cardiomyocytes (hiPSC-CMs) provide a…”
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Synaptic Acidification Enhances GABA A Signaling
Published in The Journal of neuroscience (24-11-2010)“…To determine the role of cellularly generated protons in synaptic signaling, we recorded GABA miniature IPSCs (mIPSCs) from cultured rat cerebellar granule…”
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