Interferon Alpha (IMAGE) Boston Children's Hospital Caption Interferon-alpha could be detected within the brain (red) and active interferon-alpha receptor signaling (IFNAR) was also observed (green), which is responsible for triggering microglia attack on synapses. Credit Boston Children's Hospital 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.