Images of 'Amyloid Fibrils' (IMAGE) St. John's College, University of Cambridge Caption Images of "amyloid fibrils"; thread-like structures which form after the protein alpha-synuclein aggregates. Plaques (protein deposits) consisting of this protein have been found in the brains of Parkinson 's Disease patients and linked to disease. Credit Patrick Flagmeier 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.