Maintenance of Ca(i)(2+)transients during prolonged cardiac arrest aids rapid contractile recovery.

Abstract

We explored the effects of contractile arrest maintained for 24-72 h in the presence of 2,3-butanedione monoxime or a Ca(2+) channel blocker (nifedipine or verapamil) on contractile activity, Ca(i)(2+) transients, and myofibrillar protein content and ultrastructure in long-term cultures of spontaneously beating adult guinea-pig cardiomyocytes. The… (More)

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