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Figure 2 Confocal images of connexin (Cx)43 immunolabeling in cultured cardiomyocytes. (A) A picuture of cultured cardiomyocytes and representative immunofluorescence images of Cx43 before (0 min) and after rapid electrical stimulation for 60 min and 90 min. (B) The proportion of total cell area occupied by Cx43 immunoreactive signal (means ± SD, n = 8). **p < 0.01 vs. 0 min (baseline).
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