BrainPlaques (IMAGE) Washington University School of Medicine Caption Amyloid plaques (shown in red) dot the brain of a mouse model of Alzheimer's disease. Scientists have found that an antidepressant can reduce production of the primary component in these plaques. Credit John Cirrito, Ph.D. 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.