Mechano-Chemical Interactions in Cardiac Sarcomere Shortening

L.J. Dupuis*, J. Lumens, T. Arts, T. Delhaas

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review

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Abstract

Tension development in the cardiac sarcomere is highly cooperative, yet the mechanism is not known. We have developed the MechChem model of sarcomere mechanics, which incorporates a mechano-chemical interaction-based cooperativity mechanism in which the thin filament has an intrinsic chemical cooperativity that is boosted by mechanical tension in the thin filament.. In the current study, we extend the MechChem model to include the possibility for the sarcomere to change length when contracting against different afterloads. The model was tested at various afterloads and compared to experimental data. The MechChem model successfully reproduced isotonic twitch experiments.
Original languageEnglish
Title of host publicationComputing in Cardiology Conference, CinC 2018
PublisherIEEE
Number of pages4
Volume45
ISBN (Electronic)9781728109589
ISBN (Print)9781728109589
DOIs
Publication statusPublished - Sept 2018
Event45th Computing in Cardiology Conference (CinC) - NETHERLANDS
Duration: 23 Sept 201826 Sept 2018

Publication series

SeriesComputing in Cardiology Conference
Volume45
ISSN2325-8861

Conference

Conference45th Computing in Cardiology Conference (CinC)
Period23/09/1826/09/18

Keywords

  • DEPENDENT CHANGES
  • COOPERATIVE ACTIVATION
  • MUSCLE
  • TROPONIN
  • CALCIUM

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