Muffled Inflammation (IMAGE) Rockefeller University Caption The brain of a mouse with Alzheimer's disease is infiltrated with inflammatory cells, which light up in red when activated (left). These cells become less active when Factor XII is removed (right). Credit Laboratory of Neurobiology and Genetics at The Rockefeller University/Blood Usage Restrictions Image may be used only to illustrate the research described in the accompanying release. 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.