Doctors at a London hospital have started treating heart attack patients with their own stem cells in the "biggest and most comprehensive" trial of its kind ever undertaken.
It follows the "Regenerate" series of three smaller charity-funded studies led by Barts Health NHS Trust consultant cardiologist Professor Anthony Mathur:
It has taken two years to get to the point where we are ready to accept patients, but we have now reached that stage and we are all very excited.
Our studies will tell us if adult stem cells from bone marrow can repair damaged hearts and, if so, how these cells should be administered to patients.
More top news
An investigation has begun after a teenager was stabbed in south London.
A dramatic blaze which tore through a building site in London's West End, prompting fears of an explosion, has been brought under control.
Childhood pursuits such as climbing trees or flying kites in public parks could soon attract hefty fines in one London borough.