A team of Harvard Stem Cell Institute scientists have discovered a protein that circulates in blood that can turn old hearts young, causing a mouse’s heart that has thickened and enlarged with age to revert back to a more youthful state. Richard T. Lee, HMS professor of medicine at Brigham and Women’s Hospital and Amy Wagers, professor of stem cell and regenerative biology at Harvard University and the Joslin Diabetes Center, were leaders of the study.
