Illustration Atrocytes (IMAGE) Karolinska Institutet Caption Astrocytes in the brain of a deceased patient with Alzheimer's disease. (Right) The black arrows show astrocytes surrounding amyloid plaques in the brain of a deceased patient with Alzheimer's disease. Credit Amit Kumar. 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.