According to new research stem cells from the bone marrow of healthy donors proved to be as safe and effective or even better as cells harvested from patients’ own cells for treating damaged hearts. They are also more convenient to use. The 13-month trial by researchers from the University of Miami Miller School of Medicine funded by the National Institutes of Health involved 30 patients and was the first to compare the safety and effectiveness of mesenchymal stem cells derived from bone marrow of patients themselves as against those provided by donors. The results were revealed at an American Heart