Results 181 to 190 of about 81,793 (268)

Modeling the spatiotemporal properties of crosstalk between RyR-mediated and IP₃R-mediated local Ca²⁺ release. [PDF]

Front Cell Dev Biol
Jones DC, Sobie EA.
europepmc   +1 more source

Role of reactive oxygen species in mediating peripheral hypoxic vasodilation and sympathoexcitation at high altitude

The Journal of Physiology, EarlyView.
Abstract figure legend High‐altitude acclimatisation increases muscle sympathetic nerve activity (MSNA) via activation of the arterial chemoreflex, pulmonary arterial baroreceptors and resetting of the sympathetic vascular baroreflex. However attempting to silence these mechanisms only partially normalises MSNA, implicating other contributory ...
Liam D. Corr, Andrew J. M. Douglas, Elliott J. Jenkins, Lauren E. Maier, Jodie L. Koep, Travis D. Gibbons, Adam Field, James D. Anholm, Katharine Foster, Zoe H. Adams, Lydia L. Simpson, Jonathan P. Moore, Tinna Traustadottir, Christoph Siebenmann, Joshua C. Tremblay, Mike Stembridge   +15 more
wiley   +1 more source

Phase-targeting rapid cryofixation of the beating heart and histological analysis unveil contractile state-dependent sarcomere dynamics. [PDF]

Sci Rep
Tamura S, Mochizuki K, Kumamoto Y, Morishita Y, Yamanaka M, Ho WJ, Harada Y, Fujita K, Tanaka H.   +8 more
europepmc   +1 more source

The interplay between dynamic regulation of ion‐channel gating and trafficking in cardiac arrhythmogenesis

The Journal of Physiology, EarlyView.
Abstract figure legend Cardiac cellular electrophysiology is modulated by multiple factors, including temperature, extracellular K+, heart rate/pacing frequency, and drugs. These modulators can have distinct effects on ion‐channel gating and transcription/trafficking over time.
Stefan Meier, Anna S. Savchenko, Paul G. A. Volders, Jordi Heijman   +3 more
wiley   +1 more source

Mechanical Modeling of Cardiac Fibrosis With Explicit Spatial Representation of Cellular Structure and Collagen Alignment. [PDF]

J Biomech Eng
Telle Å, Maleckar MM, Wall ST, Powers JD, Augustin CM, Sundnes J, Boyle PM.   +6 more
europepmc   +1 more source

Extracellular ionic concentration modulates arrhythmias in a simulated population of human ventricular myocytes with long QT syndrome type 3

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustrating the in silico study pipeline. A total of 50,000 virtual myocytes were generated, which were then filtered to 7093 myocytes that fit experimentally constrained biomarkers for physiological electrical and calcium behaviour under wild‐type conditions.
Katherine Flannery, Jacob A. Miller, Steven Poelzing, Seth H. Weinberg   +3 more
wiley   +1 more source

Sodium Channel mRNA Binding Proteins. [PDF]

JACC Basic Transl Sci
London B.
europepmc   +1 more source

Multiscale mechanistic modelling of heterogeneity in cardiac sub‐cellular calcium handling accounting for variable t‐system density

The Journal of Physiology, EarlyView.
Abstract figure legend Illustration of spatial calcium dynamics (left panels) and the state cycle approximation (middle panel) that enables reduced simulation of spatially dependent dynamics without explicit description of space (right panels). The selected example here illustrates a spontaneous calcium wave, showing temporal snapshots of local calcium
Michael A Colman, Yohannes Shiferaw, David Conesa   +2 more
wiley   +1 more source

Modulation of L-Type Calcium Currents by Resveratrol-Induced Myogenesis in C2C12 Cells. [PDF]

Cells
Biagini A, Sallicandro L, Covarelli J, Gentile R, Mirarchi A, Farinelli A, Reali G, Del Bianco D, Quellari PT, Gliozheni E, Malvasi A, Baldini GM, Trojano G, Tubaro C, Bearzi C, Rizzi R, Arcuri C, Prontera P, Tinelli A, Fioretti B.   +19 more
europepmc   +1 more source

Longer action potential duration in the Purkinje network than in the ventricular myocardium delays retrograde activation of the human His‐Purkinje system

The Journal of Physiology, EarlyView.
Abstract figure legend Activation time (AT) maps from right ventricular apical pacing in a human ventricles model with longer action potential duration in the His‐Purkinje system (HPS) than in the myocardium (MYO). For pacing with a long S1S2 coupling interval (CI), the AT from the myocardial pacing site to the first AT of the HPS (ATMYO) is longer ...
Jason D. Bayer, Edward J. Vigmond, Ruben Coronel, Chantal E. Conrath   +3 more
wiley   +1 more source