Calibration of ionic and cellular cardiac electrophysiology models

DG Whittaker, M Clerx, CL Lei… - … Systems Biology and …, 2020 - Wiley Online Library
Cardiac electrophysiology models are among the most mature and well‐studied
mathematical models of biological systems. This maturity is bringing new challenges as …

A heart for diversity: simulating variability in cardiac arrhythmia research

H Ni, S Morotti, E Grandi - Frontiers in physiology, 2018 - frontiersin.org
In cardiac electrophysiology, there exist many sources of inter-and intra-personal variability.
These include variability in conditions and environment, and genotypic and molecular …

Cell-specific cardiac electrophysiology models

W Groenendaal, FA Ortega… - PLoS computational …, 2015 - journals.plos.org
The traditional cardiac model-building paradigm involves constructing a composite model
using data collected from many cells. Equations are derived for each relevant cellular …

High-throughput screening of drug-binding dynamics to HERG improves early drug safety assessment

GY Di Veroli, MR Davies, H Zhang… - American Journal …, 2013 - journals.physiology.org
The use of computational models to predict drug-induced changes in the action potential
(AP) is a promising approach to reduce drug safety attrition but requires a better …

hERG inhibitors with similar potency but different binding kinetics do not pose the same proarrhythmic risk: implications for drug safety assessment

GY Di Veroli, MR Davies, H Zhang… - Journal of …, 2014 - Wiley Online Library
Drug Mode of Action and hERG‐Related Safety Introduction Since the discovery of the link
that exists between drug‐induced hERG inhibition and Torsade de Pointes (TdP), extreme …

[HTML][HTML] Model-driven optimal experimental design for calibrating cardiac electrophysiology models

CL Lei, M Clerx, DJ Gavaghan, GR Mirams - Computer Methods and …, 2023 - Elsevier
Abstract Background and Objective: Models of the cardiomyocyte action potential have
contributed immensely to the understanding of heart function, pathophysiology, and the …

Improving cardiomyocyte model fidelity and utility via dynamic electrophysiology protocols and optimization algorithms

T Krogh‐Madsen, EA Sobie… - The Journal of …, 2016 - Wiley Online Library
Mathematical models of cardiac electrophysiology are instrumental in determining
mechanisms of cardiac arrhythmias. However, the foundation of a realistic multiscale heart …

[HTML][HTML] Molecular determinants of pro-arrhythmia proclivity of d-and l-sotalol via a multi-scale modeling pipeline

KR DeMarco, PC Yang, V Singh, K Furutani… - Journal of molecular and …, 2021 - Elsevier
Drug isomers may differ in their proarrhythmia risk. An interesting example is the drug
sotalol, an antiarrhythmic drug comprising d-and l-enantiomers that both block the hERG …

Models of HERG gating

GCL Bett, Q Zhou, RL Rasmusson - Biophysical journal, 2011 - cell.com
Abstract HERG (Kv11. 1, KCNH2) is a voltage-gated potassium channel with unique gating
characteristics. HERG has fast voltage-dependent inactivation, relatively slow deactivation …

Extracellular proton depression of peak and late Na+ current in the canine left ventricle

L Murphy, D Renodin, C Antzelevitch… - American Journal …, 2011 - journals.physiology.org
Cardiac ischemia reduces excitability in ventricular tissue. Acidosis (one component of
ischemia) affects a number of ion currents. We examined the effects of extracellular acidosis …