Sarcomere dynamic instability and stochastic heterogeneity drive robust cardiomyocyte contraction
Cardiac contraction is driven by the collective action of cardiomyocytes (CMs) that contain parallel bundles of myofibrils consisting of linear chains of sarcomeres, the basic force-generating units. The dynamics of individual sarcomeres within intact CMs remain incompletely understood. While most models assume uniform, synchronized contractions, recent studies hint at unexpected heterogeneity,…
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