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Selective Electrical Stimulation of Adult Cardiomyocyte for Studying Intercellular Mechanical Transmission

[+] Author Affiliations
Xu Zhang, Yi Zhao

The Ohio State University, Columbus, OH

Paper No. SBC2013-14753, pp. V01AT11A005; 2 pages
  • ASME 2013 Summer Bioengineering Conference
  • Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments
  • Sunriver, Oregon, USA, June 26–29, 2013
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-5560-7
  • Copyright © 2013 by ASME


Heart diseases rank the top among the leading causes of death in the United States, and account for nearly 40% of all deaths 1. As the most important component of heart muscle, cardiac myocytes are the basic units to generate contractile forces and regulate heart function. There are extensive molecular and electrophysiological studies suggesting that the defective intercellular communication in cardiac myocytes is an underlying cause of left ventricular dysfunction in several heart diseases 2,3. However, there are limited evidences in terms of mechanical contractility and electromechanical transmission, which are the direct measures of intercellular communication in myocardium. This is largely due to the lack of appropriate tools that can quantitatively assess the mechanical performance of adult cardiac myocytes. In this study, a microengineered device is developed for quantitative assessment of cardiac mechanical performance in isolated adult myocytes. This device is capable of applying electrical stimulation to selected cardiac myocytes, measuring mechanical force generation in single cells, and examining intercellular mechanical transmission in longitudinally connected doublets of adult cardiac myocytes.

Copyright © 2013 by ASME



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