Despite being mainly composed of terminally differentiated myocytes that cannot re-enter the cell cycle, the heart is not a postmitotic organ and maintains some capacity to form new parenchymal ...

1 Naoharu Iwai’s lab in Osaka, Japan, and Stephane Heymans and Blanche Schroen in Maastricht, Netherlands, found greatly elevated levels of cardiac myocyte–associated miRNAs in the plasma of patients ...

Adult rat cardiac myocyte: The protein alpha-actinin (red) reveals the periodic structure of the myofibril. Two nuclei are stained in blue. Disclaimer: AAAS and EurekAlert! are not responsible for ...

The enzymes troponin I and troponin T are normal proteins that are important in the contractile apparatus of the cardiac myocyte. The proteins are released into the circulation between 3 and 4 ...