Reactive Microglia (image) University of California - San Francisco Share Print E-Mail Caption These are reactive microglia (red+green) in irradiated mouse hippocampus. (Blue stain is cell nuclei for anatomical reference.) Credit Rosi lab / UCSF Usage Restrictions Only to be used in reference to this story. Share Print E-Mail 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.