Chris Waters and Research Team (IMAGE) Michigan State University Caption Michigan State University microbiology professor Chris Waters (pictured left), with research associates Micheal Maiden and Alessandra Hunt, have found that a common antibacterial substance found in toothpaste may combat life-threatening diseases such as cystic fibrosis when combined with the already FDA-approved antibiotic tobramycin. Credit Derrick Turner 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.