Interleukin 1β (IMAGE) Scripps Research Institute Caption Researchers discovered higher than usual levels of the immune signaling molecule interleukin 1β (green) in neurons (outlined in red) from the brains of alcohol-dependent mice. Credit Scripps Research Usage Restrictions With related coverage and credit License Original 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.