Nonlinear and stochastic dynamics in the heart

Z Qu, G Hu, A Garfinkel, JN Weiss - Physics reports, 2014 - Elsevier
In a normal human life span, the heart beats about 2–3 billion times. Under diseased
conditions, a heart may lose its normal rhythm and degenerate suddenly into much faster …

The physics of heart rhythm disorders

WJ Rappel - Physics reports, 2022 - Elsevier
The global burden caused by cardiovascular disease is substantial, with heart disease
representing the most common cause of death around the world. There remains a need to …

Cardiac alternans: from bedside to bench and back

Z Qu, JN Weiss - Circulation research, 2023 - Am Heart Assoc
Cardiac alternans arises from dynamical instabilities in the electrical and calcium cycling
systems of the heart, and often precedes ventricular arrhythmias and sudden cardiac death …

Mechanisms of ventricular arrhythmias: from molecular fluctuations to electrical turbulence

Z Qu, JN Weiss - Annual review of physiology, 2015 - annualreviews.org
Ventricular arrhythmias have complex causes and mechanisms. Despite extensive
investigation involving many clinical, experimental, and computational studies, effective …

Role of sodium and calcium dysregulation in tachyarrhythmias in sudden cardiac death

S Wagner, LS Maier, DM Bers - Circulation research, 2015 - Am Heart Assoc
Despite improvements in the therapy of underlying heart disease, sudden cardiac death is a
major cause of death worldwide. Disturbed Na and Ca handling is known to be a major …

Potassium currents in the heart: functional roles in repolarization, arrhythmia and therapeutics

N Chiamvimonvat, Y Chen‐Izu… - The Journal of …, 2017 - Wiley Online Library
This is the second of the two White Papers from the fourth UC Davis Cardiovascular
Symposium Systems Approach to Understanding Cardiac Excitation–Contraction Coupling …

Multi-scale modeling in biology: how to bridge the gaps between scales?

Z Qu, A Garfinkel, JN Weiss, M Nivala - Progress in biophysics and …, 2011 - Elsevier
Human physiological functions are regulated across many orders of magnitude in space and
time. Integrating the information and dynamics from one scale to another is critical for the …

Optical Mapping of Sarcoplasmic Reticulum Ca2+ in the Intact Heart: Ryanodine Receptor Refractoriness During Alternans and Fibrillation

L Wang, RC Myles, NM De Jesus… - Circulation …, 2014 - Am Heart Assoc
Rationale: Sarcoplasmic reticulum (SR) Ca2+ cycling is key to normal excitation–contraction
coupling but may also contribute to pathological cardiac alternans and arrhythmia …

Plasticizer interaction with the heart: chemicals used in plastic medical devices can interfere with cardiac electrophysiology

R Jaimes III, D McCullough, B Siegel… - Circulation …, 2019 - Am Heart Assoc
Background: Phthalates are used as plasticizers in the manufacturing of flexible, plastic
medical products. Patients can be subjected to high phthalate exposure through contact with …

A technical review of optical mapping of intracellular calcium within myocardial tissue

R Jaimes III, RD Walton, P Pasdois… - American Journal …, 2016 - journals.physiology.org
Optical mapping of Ca2+-sensitive fluorescence probes has become an extremely useful
approach and adopted by many cardiovascular research laboratories to study a spectrum of …