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Fig. 2
Cardiomyocyte proliferation after ventricular resection. A: Fluorescent images of EdU/ MF20 double-stained hearts. EdU-incorporating uncut and resected (13 dpa) hearts are shown (EdU incorporated from 7 to 13 dpa). B: Representative EdU/ MF20 double-positive cardiomyocyte (arrowhead) in the uncut heart. C: Quantification of EdU/MF20 double-positive cells in the ventricle. The count was normalized by the ventricular area. Numbers in parentheses indicate the sample number. Student′s t-test, N.S., not significant. The dashed line indicates the approximate injury border. myo, myocardium; wo, wound area. Scale bars = 100 µm.