Study concept (IMAGE) Hokkaido University Caption Concept for digital detection of amyloid β-binding exosomes in the blood of an Alzheimer’s disease model mouse (Kohei Yuyama). Credit Kohei Yuyama Usage Restrictions This image is copyrighted, but may be used to report this press release if credited as instructed. 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.