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Evidence for cardiomyocyte renewal in humans.

Abstract : It has been difficult to establish whether we are limited to the heart muscle cells we are born with or if cardiomyocytes are generated also later in life. We have taken advantage of the integration of carbon-14, generated by nuclear bomb tests during the Cold War, into DNA to establish the age of cardiomyocytes in humans. We report that cardiomyocytes renew, with a gradual decrease from 1% turning over annually at the age of 25 to 0.45% at the age of 75. Fewer than 50% of cardiomyocytes are exchanged during a normal life span. The capacity to generate cardiomyocytes in the adult human heart suggests that it may be rational to work toward the development of therapeutic strategies aimed at stimulating this process in cardiac pathologies.
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Contributor : Samuel Bernard Connect in order to contact the contributor
Submitted on : Wednesday, April 8, 2009 - 2:46:49 PM
Last modification on : Monday, June 28, 2021 - 2:26:03 PM

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Olaf Bergmann, Ratan D Bhardwaj, Samuel Bernard, Sofia Zdunek, Fanie Barnabé-Heider, et al.. Evidence for cardiomyocyte renewal in humans.. Science, American Association for the Advancement of Science, 2009, 324 (5923), pp.98-102. ⟨10.1126/science.1164680⟩. ⟨hal-00374382⟩



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