Tightening of Gut Barrier Cells (IMAGE) National Centre for Biological Sciences Caption Illustration showing tightening of gut barrier cells and reduced inflammation due to gut metabolite, Credit Praveen Kumar Vemula, inStem, India. 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.