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. Author manuscript; available in PMC: 2008 Apr 1.
Published in final edited form as: J Mol Cell Cardiol. 2007 Feb 9;42(4):722–726. doi: 10.1016/j.yjmcc.2007.02.002

Figure 1.

Figure 1

Representative micrographs of cell fragments purified from human cardiac specimens. Panel A shows a cell fragment that was isolated from tissue that had been fast frozen in liquid N2 promptly following surgical excision and generated meaningful F:Ca data. Panel B on the right is a cell fragment that was not preserved as carefully and, despite the intact sarcomere registration, did not generate reliable data. Note the granular deposits and distorted myofibrillar organization.