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Cell. 2003 Sep 19;114(6):658-9.

Hope for a broken heart?

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Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, CO 80309, USA.


Heated debate has surrounded the issue of whether adult stem cells can differentiate into cardiac myocytes and contribute to the function of the heart. In this issue of Cell, demonstrate stem cells in the adult rat heart that differentiate into cardiac myocytes in vitro and, when injected into the adult rat heart, can reconstitute the injured myocardium and improve function. These findings should weigh heavily in future debates about the existence of stem cells in the adult heart and their capacity for functional repair after injury.

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