Source: Associated Press
Posted: September 20, 2006 2:00 p.m. PT
Summary:
Giving heart attack survivors stem cells from their own bone marrow did little to repair their damaged hearts, according to the three best studies to date of this controversial therapy. The modest results suggest more study is needed — and, some scientists say, demonstrate the need to lift political limits on using cells from embryos, which offer more promise for turning into heart-repairing tissue.
