Gut Bacteria and Multiple Sclerosis (IMAGE) Advanced Science Research Center, GC/CUNY Caption A new study has identified gut-derived metabolites that appear to be neurotoxic and play a role in the progression of multiple sclerosis. Credit Nicoletta Barolini Usage Restrictions This image is under copyright and for use only in conjunction with this study. License Original 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.