Scientists at King's College London said their research is 'exciting' progress
Millions of people worldwide have heart failure caused by damaged tissue
Experts were able to restore pigs' hearts to work properly again within weeks
A 'Holy Grail' heart failure cure could be on the horizon after scientists worked out how to regenerate specialised cells in the muscle.
Injecting the gene which drives cell growth in people's infancy could restore tissue which is damaged during a heart attack, a study on pigs has found.
Currently, people who have heart attacks are left with patches of scarring which last forever and can lead to heart failure and ultimately death.
Scientists have failed to find a way to restore or remove this dead tissue and get the organ working normally again – but this discovery may change that.