Kiran Musunuru, Harvard University (image) Harvard University Caption Harvard Stem Cell Institute scientists, lead by Kiran Musunuru collaborating with researchers at the University of Pennsylvania have developed a "genome-editing" approach for permanently reducing cholesterol levels in mice through a single injection, a development that could reduce the risk of heart attacks in humans by 40 to 90 percent. Credit B. D. Colen/Harvard University Usage Restrictions Image may only be used in conjunction with attached story. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.