Circadian control (IMAGE) Rensselaer Polytechnic Institute Caption Circadian rhythms control the removal of a key protein linked to Alzheimer's disease. Credit Rensselaer Polytechnic Institute 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.