Dr. Roger Unger_ low res (IMAGE) UT Southwestern Medical Center Caption Dr. Roger Unger led research that shows dietary restrictions or other strategies to limit fat formation might make pancreatic cell transplants more effective. Credit UT Southwestern Medical Center Usage Restrictions Please use credit line 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.