The arrhythmogenic consequences of increasing late INa in the cardiomyocyte

JC Shryock, Y Song, S Rajamani… - Cardiovascular …, 2013 - academic.oup.com
This review presents the roles of cardiac sodium channel NaV1. 5 late current (late I Na) in
generation of arrhythmic activity. The assumption of the authors is that proper Na+ channel …

Pathophysiology and pharmacology of the cardiac “late sodium current”

A Zaza, L Belardinelli, JC Shryock - Pharmacology & therapeutics, 2008 - Elsevier
The “late sodium current”(INaL) is a sustained component of the fast Na+ current of cardiac
myocytes and neurons. As recently appreciated, common neurological and cardiac …

[HTML][HTML] Functional and clinical characterization of KCNJ2 mutations associated with LQT7 (Andersen syndrome)

M Tristani-Firouzi, JL Jensen… - The Journal of …, 2002 - Am Soc Clin Investig
Andersen syndrome (AS) is a rare, inherited disorder characterized by periodic paralysis,
long QT (LQT) with ventricular arrhythmias, and skeletal developmental abnormalities. We …

Action potential and contractility changes in [Na+] i overloaded cardiac myocytes: a simulation study

GM Faber, Y Rudy - Biophysical journal, 2000 - cell.com
Sodium overload of cardiac cells can accompany various pathologies and induce fatal
cardiac arrhythmias. We investigate effects of elevated intracellular sodium on the cardiac …

Molecular mechanisms of remodeling in human atrial fibrillation

BJJM Brundel, RH Henning… - Cardiovascular …, 2002 - academic.oup.com
An important acknowledgement of the last several years is that atrial fibrillation (AF) modifies
the electrical properties of the atrium in a way that promotes its occurrence and …

Kir 2.1 channelopathies: the Andersen–Tawil syndrome

M Tristani-Firouzi, SP Etheridge - Pflügers Archiv-European Journal of …, 2010 - Springer
As a multisystem disorder, Andersen–Tawil syndrome (ATS) is rather unique in the family of
channelopathies. The full spectrum of the disease is characterized by ventricular …

Alternative splicing of Nav1. 5: an electrophysiological comparison of 'neonatal'and 'adult'isoforms and critical involvement of a lysine residue

R Onkal, JH Mattis, SP Fraser, JKJ Diss… - Journal of cellular …, 2008 - Wiley Online Library
In developmentally regulated D1: S3 splicing of Nav1. 5, there are 31 nucleotide differences
between the 5′‐exon ('neonatal') and the 3′‐exon ('adult') forms, resulting in 7 amino acid …

Impact of ionic current variability on human ventricular cellular electrophysiology

L Romero, E Pueyo, M Fink… - American Journal of …, 2009 - journals.physiology.org
Abnormalities in repolarization and its rate dependence are known to be related to
increased proarrhythmic risk. A number of repolarization-related electrophysiological …

Role of the Na+/H+ Exchanger in Short-Term Atrial Electrophysiological Remodeling

JV Jayachandran, DP Zipes, J Weksler, JE Olgin - Circulation, 2000 - Am Heart Assoc
Background—The pathophysiology underlying electrophysiological remodeling (ER) from
rapid atrial rates is unknown. We tested the hypothesis that activation of the Na+/H+ …

A human ventricular cell model for investigation of cardiac arrhythmias under hyperkalaemic conditions

J Carro, JF Rodríguez, P Laguna… - … Transactions of the …, 2011 - royalsocietypublishing.org
In this study, several modifications were introduced to a recently proposed human
ventricular action potential (AP) model so as to render it suitable for the study of ventricular …