George Kracke, Ph.D. (IMAGE) University of Missouri-Columbia Caption University of Missouri researchers led by George Kracke, Ph.D., have discovered a new compound that offers longer lasting painkilling effects, and shows promise as an alternative to current anesthetics. Credit Justin Kelley/MU Health System 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.