Ratna Ray, Saint Louis University (IMAGE) Saint Louis University Caption Ratna Ray, Ph.D., professor of pathology at Saint Louis University, found bitter melon extract inhibited the growth of breast cancer cells. Credit Saint Louis University 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.