Beta-Amyloid Plaques and Tau in the Brain (IMAGE) Purdue University Caption R-LOOPS, A COMMON GENOMIC TANGLE THAT OCCURS MORE FREQUENTLY AS WE AGE, MAY BE CREATING CELLULAR STRESS THAT CUMULATIVELY LEADS TO SOME OF THE CHANGES SEEN IN ALZHEIMER'S. Credit National Institutes of Health (NIH) Usage Restrictions No restrictions. License Public Domain 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.