The Effects of Mechanical Preload on Transmural Differences in Mechano-Calcium-Electric Feedback in Single Cardiomyocytes: Experiments and Mathematical Models.

electromechanical coupling length-dependent activation mechanical preload mechano-calcium-electric feedback single cardiomyocytes transmural differences

Journal

Frontiers in physiology
ISSN: 1664-042X
Titre abrégé: Front Physiol
Pays: Switzerland
ID NLM: 101549006

Informations de publication

Date de publication:
2020
Historique:
received: 30 11 2019
accepted: 13 02 2020
entrez: 8 4 2020
pubmed: 8 4 2020
medline: 8 4 2020
Statut: epublish

Résumé

Transmural differences in ventricular myocardium are maintained by electromechanical coupling and mechano-calcium/mechano-electric feedback. In the present study, we experimentally investigated the influence of preload on the force characteristics of subendocardial (Endo) and subepicardial (Epi) single ventricular cardiomyocytes stretched by up to 20% from slack sarcomere length (SL) and analyzed the results with the help of mathematical modeling. Mathematical models of Endo and Epi cells, which accounted for regional heterogeneity in ionic currents, Ca

Identifiants

pubmed: 32256377
doi: 10.3389/fphys.2020.00171
pmc: PMC7091561
doi:

Types de publication

Journal Article

Langues

eng

Pagination

171

Informations de copyright

Copyright © 2020 Khokhlova, Konovalov, Iribe, Solovyova and Katsnelson.

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Auteurs

Anastasia Khokhlova (A)

Institute of Immunology and Physiology, Russian Academy of Sciences, Yekaterinburg, Russia.
Institute of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, Russia.

Pavel Konovalov (P)

Institute of Immunology and Physiology, Russian Academy of Sciences, Yekaterinburg, Russia.

Gentaro Iribe (G)

Department of Physiology, Asahikawa Medical University, Hokkaido, Japan.
Department of Cardiovascular Physiology, Okayama University, Okayama, Japan.

Olga Solovyova (O)

Institute of Immunology and Physiology, Russian Academy of Sciences, Yekaterinburg, Russia.
Institute of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, Russia.

Leonid Katsnelson (L)

Institute of Immunology and Physiology, Russian Academy of Sciences, Yekaterinburg, Russia.
Institute of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, Russia.

Classifications MeSH