Calcium and excitation-contraction coupling in the heart

DA Eisner, JL Caldwell, K Kistamás… - Circulation …, 2017 - Am Heart Assoc
Cardiac contractility is regulated by changes in intracellular Ca concentration ([Ca2+] i).
Normal function requires that [Ca2+] i be sufficiently high in systole and low in diastole …

Cardiac excitation–contraction coupling

DM Bers - Nature, 2002 - nature.com
Of the ions involved in the intricate workings of the heart, calcium is considered perhaps the
most important. It is crucial to the very process that enables the chambers of the heart to …

Myocardial ischemia/reperfusion injury: Mechanisms of injury and implications for management

J He, D Liu, L Zhao, D Zhou… - Experimental and …, 2022 - spandidos-publications.com
Myocardial infarction is one of the primary causes of mortality in patients with coronary heart
disease worldwide. Early treatment of acute myocardial infarction restores blood supply of …

Cardiac ionic currents and acute ischemia: from channels to arrhythmias

E Carmeliet - Physiological reviews, 1999 - journals.physiology.org
The aim of this review is to provide basic information on the electrophysiological changes
during acute ischemia and reperfusion from the level of ion channels up to the level of …

The control of diastolic calcium in the heart: basic mechanisms and functional implications

DA Eisner, JL Caldwell, AW Trafford… - Circulation …, 2020 - Am Heart Assoc
Normal cardiac function requires that intracellular Ca2+ concentration be reduced to low
levels in diastole so that the ventricle can relax and refill with blood. Heart failure is often …

Calcium in the pathophysiology of atrial fibrillation and heart failure

NC Denham, CM Pearman, JL Caldwell… - Frontiers in …, 2018 - frontiersin.org
Atrial fibrillation (AF) is commonly associated with heart failure. A bidirectional relationship
exists between the two—AF exacerbates heart failure causing a significant increase in heart …

Sarcoplasmic reticulum calcium content fluctuation is the key to cardiac alternans

ME Díaz, SC O'neill, DA Eisner - Circulation research, 2004 - Am Heart Assoc
The aim of this work was to investigate whether beat-to-beat alternation in the amplitude of
the systolic Ca2+ transient (Ca2+ alternans) is due to changes of sarcoplasmic reticulum …

Intracellular Na+ regulation in cardiac myocytes

DM Bers, WH Barry, S Despa - Cardiovascular research, 2003 - academic.oup.com
Abstract Intracellular [Na+]([Na+] i) is regulated in cardiac myocytes by a balance of Na+
influx and efflux mechanisms. In the normal cell there is a large steady state electrochemical …

Integrative analysis of calcium cycling in cardiac muscle

DA Eisner, HS Choi, ME Diaz, SC O'neill… - Circulation …, 2000 - Am Heart Assoc
The control of intracellular calcium is central to regulation of contractile force in cardiac
muscle. This review illustrates how analysis of the control of calcium requires an integrated …

Altered Na/Ca exchange activity in cardiac hypertrophy and heart failure: a new target for therapy?

KR Sipido, PGA Volders, MA Vos… - Cardiovascular …, 2002 - academic.oup.com
Abstract Increased Na/Ca exchange (NCX) expression may be part of the genetic
reprogramming in cardiac remodeling. In this review we address the following questions:(1) …