Adult Hearts Lack Stem Cells, Says Study

Heart stem cells that might repair the heart muscle after heart attack do not exist in adults, researchers conclude.

Heart stem cells that might repair the heart muscle after a heart attack do not exist in adults, say researchers after two decades of study.

The study offered scientific evidence to a decision made in October by the US health authorities to pause a clinical trial using stem cells to treat heart failure over concerns over the lack of "scientific foundations" of trial, Xinhua news agency reported.