David Arnosti, Michigan State University (IMAGE) Michigan State University Caption David Arnosti, MSU biochemistry professor, director of MSU's Gene Expression in Development and Disease Initiative. Credit Courtesy of MSU 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.