The contribution of ionic currents to rate-dependent action potential duration and pattern of reentry in a mathematical model of human atrial fibrillation

YS Lee, M Hwang, JS Song, C Li, B Joung, EA Sobie… - PloS one, 2016 - journals.plos.org
… Ionic current changes in PeAF led to reduced SR Ca 2+ load and smaller Ca 2+ transients (…
and forward mode currents through Na + /Ca 2+ exchange under the four conditions (Fig 2D). …

Effects of atrial fibrillation on the human ventricle

S Pabel, M Knierim, T Stehle, F Alebrand… - Circulation …, 2022 - Am Heart Assoc
… LV myocardium from patients with sinus rhythm and patients … with impaired Ca 2+ handling,
prolonged action potentials, … human model, we used human iPSC-CM for chronic AF-…

Fibrotic remodeling during persistent atrial fibrillation: In silico investigation of the role of calcium for human atrial myofibroblast electrophysiology

J Sánchez, B Trenor, J Saiz, O Dössel, A Loewe - Cells, 2021 - mdpi.com
model with Ca 2+ handling to an atrial myocyte affects the action potential under electrical
remodeling due to persistent … a planar wave propagation during sinus rhythm with 10 pulses at …

Computational models of atrial cellular electrophysiology and calcium handling, and their role in atrial fibrillation

J Heijman, P Erfanian Abdoust, N Voigt… - The Journal of …, 2016 - Wiley Online Library
… incorporate an intermediate level of spatial and temporal complexity with whole-cell action
potential (AP) and Ca 2+ transient simulations. There are several challenges at this level and …

Block of Na+/Ca2+ exchanger by SEA0400 in human right atrial preparations from patients in sinus rhythm and in atrial fibrillation

T Christ, PP Kovács, K Acsai, M Knaut… - European journal of …, 2016 - Elsevier
potential and the concentration gradients for Ca 2+ and Na + , the time course of NCX current
during an action potential is complicated, and simulation models … on atrial action potentials

… atrial action potential derived from a single, congruent data source: novel computational models for integrated experimental-numerical study of atrial arrhythmia …

MA Colman, P Saxena, S Kettlewell… - Frontiers in …, 2018 - frontiersin.org
… All patients were in sinus rhythm unless otherwise stated, and were taking a variety of drug
… were fit to detailed data from a single laboratory, the intracellular Ca 2+ handling system …

Enhanced Ca2+-Dependent SK-Channel Gating and Membrane Trafficking in Human Atrial Fibrillation

J Heijman, X Zhou, S Morotti, CE Molina… - Circulation …, 2023 - Am Heart Assoc
… and apamin caused larger action potential prolongation in cAF- … improved human atrial
cardiomyocyte computational model … in right atrial (RA)-cardiomyocytes from sinus rhythm control (…

Mechanisms of arrhythmogenesis related to calcium-driven alternans in a model of human atrial fibrillation

KC Chang, NA Trayanova - Scientific reports, 2016 - nature.com
… to CDA on arrhythmia vulnerability in 3D models of the human atria incorporating both …
Two human atrial action potential models were used to simulate membrane kinetics: ALT …

… -Conductance Calcium-Activated Potassium Current (IK,Ca) Leads to Differential Atrial Electrophysiological Effects in a Horse Model of Persistent Atrial Fibrillation

MF Fenner, G Gatta, S Sattler, M Kuiper… - Frontiers in …, 2021 - frontiersin.org
fibrillation (AF) and to maintain sinus rhythm. However, it has been hypothesized that the …
absence of action potential duration (APD) and the aERP prolonging effect of K Ca 2 inhibition. …

[HTML][HTML] PITX2 upregulation increases the risk of chronic atrial fibrillation in a dose-dependent manner by modulating IKs and ICaL—insights from human atrial …

J Bai, Y Lu, A Lo, J Zhao, H Zhang - Annals of translational …, 2020 - ncbi.nlm.nih.gov
Ca 2+ current (I CaL ) reduction observed in isolated right … -Nattel (CRN) model of human
atrial action potentials (APs) was … These cell models for sinus rhythm (SR) and CAF were then …