The intercalated disc: a unique organelle for electromechanical synchrony in cardiomyocytes

MS Nielsen, CJM van Opbergen… - Physiological …, 2023 - journals.physiology.org
The intercalated disc (ID) is a highly specialized structure that connects cardiomyocytes via
mechanical and electrical junctions. Although described in some detail by light microscopy …

Determinants of myocardial conduction velocity: implications for arrhythmogenesis

JH King, CLH Huang, JA Fraser - Frontiers in physiology, 2013 - frontiersin.org
Slowed myocardial conduction velocity (θ) is associated with an increased risk of re-entrant
excitation, predisposing to cardiac arrhythmia. θ is determined by the ion channel and …

Sodium channels in the Cx43 gap junction perinexus may constitute a cardiac ephapse: an experimental and modeling study

R Veeraraghavan, J Lin, GS Hoeker, JP Keener… - … -European Journal of …, 2015 - Springer
It has long been held that electrical excitation spreads from cell-to-cell in the heart via low
resistance gap junctions (GJ). However, it has also been proposed that myocytes could …

Intercalated disk nanoscale structure regulates cardiac conduction

N Moise, HL Struckman, C Dagher… - Journal of General …, 2021 - rupress.org
The intercalated disk (ID) is a specialized subcellular region that provides electrical and
mechanical connections between myocytes in the heart. The ID has a clearly defined …

Connexins and disease

M Delmar, DW Laird, CC Naus… - Cold Spring …, 2018 - cshperspectives.cshlp.org
Inherited or acquired alterations in the structure and function of connexin proteins have long
been associated with disease. In the present work, we review current knowledge on the role …

Mechanisms of cardiac conduction: a history of revisions

R Veeraraghavan, RG Gourdie… - American Journal of …, 2014 - journals.physiology.org
Cardiac conduction is the process by which electrical excitation spreads through the heart,
triggering individual myocytes to contract in synchrony. Defects in conduction disrupt …

The blinding period following ablation therapy for atrial fibrillation: proarrhythmic and antiarrhythmic pathophysiological mechanisms

LA Gottlieb, LRC Dekker, R Coronel - Clinical Electrophysiology, 2021 - jacc.org
Atrial fibrillation (AF) causes heart failure, ischemic strokes, and poor quality of life. The
number of patients with AF is estimated to increase to 18 million in Europe in 2050 …

Cx43 Associates with Nav1.5 in the Cardiomyocyte Perinexus

JM Rhett, EL Ongstad, J Jourdan… - The Journal of membrane …, 2012 - Springer
Gap junctions (GJs) are aggregates of channels that provide for direct cytoplasmic
connection between cells. Importantly, this connection is thought responsible for cell-to-cell …

Vascular endothelial growth factor promotes atrial arrhythmias by inducing acute intercalated disk remodeling

L Mezache, HL Struckman, A Greer-Short, S Baine… - Scientific reports, 2020 - nature.com
Atrial fibrillation (AF) is the most common arrhythmia and is associated with inflammation. AF
patients have elevated levels of inflammatory cytokines known to promote vascular leak …

[HTML][HTML] Conduction abnormalities and ventricular arrhythmogenesis: The roles of sodium channels and gap junctions

G Tse, JM Yeo - IJC Heart & Vasculature, 2015 - Elsevier
Ventricular arrhythmias arise from disruptions in the normal orderly sequence of electrical
activation and recovery of the heart. They can be categorized into disorders affecting …