Simon Drew, University of Melbourne (IMAGE) University of Melbourne Caption University of Melbourne Dr Simon Drew, ARC Research Fellow, has made an intruiging discovery about how a protein in the brain that is thought to cause Alzheimer's disease has protective factors in healthy people. Credit Photo: Paul Burston, University of Melbourne 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.