Extensive Cardiomyocyte Mitoses in Postnatal-day-15 Left Cardiac Ventricle (image) Cell Press Share Print E-Mail Caption This shows an immunohistochemical identification of mitotic nuclei (red staining, aurora B+ nuclei) in a transverse cut left ventricle tissue section. DAPI was used to identify nuclei (blue) and alpha-sarcomeric actin was used to identify cardiomyocytes (green). Note widespread mitoses in left ventricular cardiomyocytes. Credit Cell, Naqvi et al. Usage Restrictions Credit Required Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.