Mexican tetra fish may offer heart repair clues
A fish that can repair its heart may hold clues for future treatments in people, according to a study.
Scientists studying the Mexican tetra fish found three areas of the fish genome were involved in its ability to regenerate heart tissue.
One gene appeared to play a particularly key role in the process.
Researchers hope their study will one day make it possible to heal heart muscle in patients who have had a heart attack.
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