Literature DB >> 15783348

Coupled dynamics of voltage and calcium in paced cardiac cells.

Yohannes Shiferaw1, Daisuke Sato, Alain Karma.   

Abstract

We investigate numerically and analytically the coupled dynamics of transmembrane voltage and intracellular calcium cycling in paced cardiac cells using a detailed physiological model, and its reduction to a three-dimensional discrete map. The results provide a theoretical framework to interpret various experimentally observed modes of instability ranging from electromechanically concordant and discordant alternans to quasiperiodic oscillations of voltage and calcium.

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Year:  2005        PMID： 15783348      PMCID： PMC4278950          DOI： 10.1103/PhysRevE.71.021903

Source DB:  PubMed          Journal:  Phys Rev E Stat Nonlin Soft Matter Phys        ISSN： 1539-3755


  24 in total

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Authors:  M L Collier; A P Thomas; J R Berlin
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2.  Instability and spatiotemporal dynamics of alternans in paced cardiac tissue.

Authors:  Blas Echebarria; Alain Karma
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Review 3.  Repolarization alternans: implications for the mechanism and prevention of sudden cardiac death.

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Journal:  Cardiovasc Res       Date:  2003-03       Impact factor: 10.787

4.  Electrical alternans and spiral wave breakup in cardiac tissue.

Authors:  Alain Karma
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5.  Period-doubling instability and memory in cardiac tissue.

Authors:  Jeffrey J Fox; Eberhard Bodenschatz; Robert F Gilmour
Journal:  Phys Rev Lett       Date:  2002-09-09       Impact factor: 9.161

6.  Role of calcium cycling versus restitution in the mechanism of repolarization alternans.

Authors:  Etienne J Pruvot; Rodolphe P Katra; David S Rosenbaum; Kenneth R Laurita
Journal:  Circ Res       Date:  2004-03-11       Impact factor: 17.367

7.  A graphic method for the study of alternation in cardiac action potentials.

Authors:  J B Nolasco; R W Dahlen
Journal:  J Appl Physiol       Date:  1968-08       Impact factor: 3.531

8.  Intracellular Ca(2+) dynamics and the stability of ventricular tachycardia.

Authors:  E Chudin; J Goldhaber; A Garfinkel; J Weiss; B Kogan
Journal:  Biophys J       Date:  1999-12       Impact factor: 4.033

9.  Premature beats elicit a phase reversal of mechanoelectrical alternans in cat ventricular myocytes. A possible mechanism for reentrant arrhythmias.

Authors:  D S Rubenstein; S L Lipsius
Journal:  Circulation       Date:  1995-01-01       Impact factor: 29.690

10.  A dynamic model of the cardiac ventricular action potential. I. Simulations of ionic currents and concentration changes.

Authors:  C H Luo; Y Rudy
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  62 in total

1.  Ca2+ alternans in a cardiac myocyte model that uses moment equations to represent heterogeneous junctional SR Ca2+.

Authors:  Marco A Huertas; Gregory D Smith; Sándor Györke
Journal:  Biophys J       Date:  2010-07-21       Impact factor: 4.033

2.  Vulnerable windows define susceptibility to alternans and spatial discordance.

Authors:  Seth Weinberg; Neha Malhotra; Leslie Tung
Journal:  Am J Physiol Heart Circ Physiol       Date:  2010-04-02       Impact factor: 4.733

3.  Feedback-control induced pattern formation in cardiac myocytes: a mathematical modeling study.

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4.  New experimental evidence for mechanism of arrhythmogenic membrane potential alternans based on balance of electrogenic I(NCX)/I(Ca) currents.

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Journal:  Heart Rhythm       Date:  2012-06-19       Impact factor: 6.343

5.  Calcium instabilities in mammalian cardiomyocyte networks.

Authors:  Harold Bien; Lihong Yin; Emilia Entcheva
Journal:  Biophys J       Date:  2006-01-06       Impact factor: 4.033

6.  Action potential morphology influences intracellular calcium handling stability and the occurrence of alternans.

Authors:  Peter N Jordan; David J Christini
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7.  Turing instability mediated by voltage and calcium diffusion in paced cardiac cells.

Authors:  Yohannes Shiferaw; Alain Karma
Journal:  Proc Natl Acad Sci U S A       Date:  2006-03-30       Impact factor: 11.205

8.  Stochastic Pacing Inhibits Spatially Discordant Cardiac Alternans.

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Review 9.  Perspective: a dynamics-based classification of ventricular arrhythmias.

Authors:  James N Weiss; Alan Garfinkel; Hrayr S Karagueuzian; Thao P Nguyen; Riccardo Olcese; Peng-Sheng Chen; Zhilin Qu
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Review 10.  Beyond the implantable cardioverter-defibrillator: are we making progress?

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Journal:  Heart Rhythm       Date:  2008-02-06       Impact factor: 6.343
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