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 ...

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 ...

B-type natriuretic peptide is released by cardiac myocytes in response to wall stretch. There are many hemodynamic effects of BNP which are beneficial in the setting of decompensated congestive ...

Intracellular calcium within the cardiac myocytes is increased by digoxin, resulting in increased inotropy, or contractility. Digoxin toxicity causes hyperkalemia, or high potassium. The sodium ...