For the first time, researchers have observed that human heart muscle cells are capable of regrowing after a heart attack. The discovery challenges the longstanding view that the heart cannot repair itself once tissue is damaged.
The new evidence suggests that regeneration does occur, even if only at a limited level. Scientists are now interested in understanding how to amplify this natural process so that it could lead to meaningful recovery after cardiac injury.
The findings open a new avenue for potential treatments that might one day help the heart rebuild muscle after damage. Further research will be needed to determine how to safely and effectively boost the regenerative response.