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Cardiovascular biology

Switched at birth

Exposure to atmospheric oxygen in the days after a mammal's birth causes its heart muscle cells to stop proliferating. The finding may explain why zebrafish, which live in a hypoxic environment, can regenerate their hearts as adults.

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Figure 1: Fish-like beginnings.


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Correspondence to Katherine E. Yutzey.

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Yutzey, K. Switched at birth. Nature 509, 572–573 (2014).

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