John W. Erdman Jr., Eric C. Bolton and Matthew A. Wallig (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption An enzyme that metabolizes beta carotene may play a vital role in testosterone metabolism as well, according to a new study led by researchers at the University of Illinois. From left to right, professor emeritus of food science and nutrition John W. Erdman Jr., molecular and integrative physiology professor Eric C. Bolton and professor emeritus of comparative pathology Matthew A. Wallig. Additional co-authors: Illinois alumni Joshua W. Smith and Nikki A. Ford, and Steven K. Clinton, Nancy E. Moran and Jennifer M. Thomas-Ahner, all of Ohio State University. Credit Photo by L. Brian Stauffer Usage Restrictions Use with photographer credit Share Print E-Mail 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.