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. Author manuscript; available in PMC: 2016 Jun 13.
Published in final edited form as: J Cell Biochem. 2008 Aug 15;104(6):2217–2227. doi: 10.1002/jcb.21780

Fig. 7.

Fig. 7

Ca2+ transient amplitude (A), rate of increase (B), and rate of decrease (C) obtained from Rhod-2 fluorescence in chick cardiomyocytes in culture. Forty regions of interest (ROI's) were tracked per monolayer and analyzed as described in Materials and Methods. Data from two monolayers for each nucleotide level—that exhibited contractility—were averaged and normalized to the average untreated (U; no nucleotide added) control. Error bars represent the SEM. In (A) and (C), ATP (0/6) control was not significantly different from untreated control, while in (B) ATP control (0/6) was significantly higher than U. [Δ] Represents P≤0.05 where ATP control was compared to U.