Elevated Itch Signaling (IMAGE) Washington University School of Medicine Caption In genetically engineered mice that are prone to chronic itching, researchers identified elevated signaling (shown in red) in nerve cells involved in both itch and in pain. Credit Washington University Center for the Study of Itch 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.