Amyloid Fibril (IMAGE) University of Cambridge Caption This is an image, magnified a million times, of amyloid fibril, the type of protein structures that are formed in Alzheimer's. Credit Dr. Tuomas Knowles Usage Restrictions Please credit 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.