GCPII (IMAGE) Johns Hopkins Medicine Caption Images on the right are of normal human gut without IBD. Left side images show the dramatic increase of the GCPII protein in humans with IBD Credit Image reproduced with permission from authors Usage Restrictions N/A 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.