Dr. Xian C. Li, Houston Methodist (IMAGE) Houston Methodist Caption Xian C. Li, M.D., Ph.D., and his team at the Houston Methodist Research Institute discovered an interaction between two molecules that can be manipulated to solve the overproduction of mucin in the lungs that causes asthma. Credit Scott Jones, Houston Methodist 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.