Engineered Heart Muscle (VIDEO) UT Southwestern Medical Center This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption A study from UT Southwestern demonstrates how a new CRISPR-Cas9 gene-editing technique improves the function of heart muscle cells taken from DMD patients. From left to right, the footage shows the beating function of a healthy heart muscle tissue, DMD heart muscle tissue, and tissue edited by CRISPR-Cas9. Credit UT Southwestern Medical Center Usage Restrictions None License Licensed content 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.