NAA Molecules and Amyloid-Beta (IMAGE) University of Pennsylvania School of Medicine Caption NAA molecules (red) insert between Amyloid-Beta sheets (green) to prevent or reverse formation of Amyloid fibrils. Credit Penn Medicine 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.