Heart attacks cause cells in the affected area to stop beating and become encased in scar tissue, but researchers believe the damage may not be permanent.
Using a combination of genes they were able to coax the scar-forming cells into a state which closely resembles healthy, beating heart cells, suggesting the condition is reversible.
The scientists, from the Gladstone Institutes in America, had already demonstrated their technique on mice but have taken a step further by doing the same to human heart cells in a laboratory.
Read the full, original story here: Heart attack damage repaired using gene therapy
