Mark Sundrud, PhD (IMAGE) Scripps Research Institute Caption Scripps Research immunologist Mark Sundrud, PhD, finds a new direction for Crohn's disease research lies in the interplay between bile acids and T cells in the small intestine. Credit Scott Wiseman for Scripps Research 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.