London: Stem cells from the bone marrow of healthy donors are as safe and effective or even better as cells harvested from patients’ own cells for treating damaged hearts, researchers have reported. 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 study suggests that stem cells could be banked for off-the-shelf use after heart attacks, just as blood is kept on hand now.The study used a specific type of stem cells from bone marrow that researchers believed would not be rejected by recipients.Unlike other cells, these lack a key feature on their surface that makes the immune system see them as foreign tissue and attacks them, said the study``s leader, Dr Joshua Hare, of the University of Miami.The patients in the study had suffered heart attacks years earlier, some as long as 30 years ago.Researchers advertised for people to supply marrow. The cells were removed from the marrow using a needle into the hip and then amplified for about a month in a lab at Baltimore``s Johns Hopkins University, then returned to Miami to be used for treatment, which did not involve surgery, the Daily Express reported.
Kids consume more calories when eating out
Stem cell therapy may not improve recovery after heart attack