Human In Silico Drug Trials Demonstrate Higher Accuracy than Animal Models in Predicting Clinical Pro-Arrhythmic Cardiotoxicity

E Passini, OJ Britton, HR Lu, J Rohrbacher… - Frontiers in …, 2017 - frontiersin.org
Early prediction of cardiotoxicity is critical for drug development. Current animal models
raise ethical and translational questions, and have limited accuracy in clinical risk prediction …

[HTML][HTML] Quantitative systems toxicology

P Bloomingdale, C Housand, JF Apgar… - Current opinion in …, 2017 - Elsevier
The overarching goal of modern drug development is to optimize therapeutic benefits while
minimizing adverse effects. However, inadequate efficacy and safety concerns remain to be …

Basic research approaches to evaluate cardiac arrhythmia in heart failure and beyond

MJ Cumberland, LL Riebel, A Roy, C O'Shea… - Frontiers in …, 2022 - frontiersin.org
Patients with heart failure often develop cardiac arrhythmias. The mechanisms and
interrelations linking heart failure and arrhythmias are not fully understood. Historically …

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
During atrial fibrillation, cardiac tissue undergoes different remodeling processes at different
scales from the molecular level to the tissue level. One central player that contributes to both …

Population-based mechanistic modeling allows for quantitative predictions of drug responses across cell types

JQX Gong, EA Sobie - Biophysical Journal, 2018 - cell.com
Quantitative mismatches between human physiology and experimental models can be
problematic for the development of effective therapeutics. When the effects of drugs on …

Abnormal calcium homeostasis in heart failure with preserved ejection fraction is related to both reduced contractile function and incomplete relaxation: an …

I Adeniran, DH MacIver, JC Hancox… - Frontiers in physiology, 2015 - frontiersin.org
Heart failure with preserved ejection fraction (HFpEF) accounts for about 50% of heart failure
cases. It has features of incomplete relaxation and increased stiffness of the left ventricle …

Heterogeneous effects of fibroblast-myocyte coupling in different regions of the human atria under conditions of atrial fibrillation

J Sánchez, JF Gomez, L Martinez-Mateu… - Frontiers in …, 2019 - frontiersin.org
Background: Atrial fibrillation (AF), the most common cardiac arrhythmia, is characterized by
alteration of the action potential (AP) propagation. Under persistent AF, myocytes undergo …

Investigational treatments for COVID-19 may increase ventricular arrhythmia risk through drug interactions

M Varshneya, I Irurzun-Arana, C Campana, R Dariolli… - Biophysical …, 2021 - cell.com
Several drugs proposed for the treatment of COVID-19 have reported cases of cardiac
adverse events such as ventricular arrhythmias. To properly weigh risks against potential …

Reduced response to IKr blockade and altered hERG1a/1b stoichiometry in human heart failure

KM Holzem, JF Gomez, AV Glukhov, EJ Madden… - Journal of molecular and …, 2016 - Elsevier
Abstract Heart failure (HF) claims 250,000 lives per year in the US, and nearly half of these
deaths are sudden and presumably due to ventricular tachyarrhythmias. QT interval and …

[HTML][HTML] Computational assessment of the functional role of sinoatrial node exit pathways in the human heart

SR Kharche, E Vigmond, IR Efimov, H Dobrzynski - PloS one, 2017 - journals.plos.org
Aim The human right atrium and sinoatrial node (SAN) anatomy is complex. Optical mapping
experiments suggest that the SAN is functionally insulated from atrial tissue except at …