Dr. Greg Fairn (IMAGE) St. Michael's Hospital Caption "Though we have discovered a lot regarding the impact of mutations of NOD 1 and NOD 2 on IBD, there hasn't been a satisfying reason as to why some variants cause inflammatory disease," said Dr. Greg Fairn, a scientist at the Keenan Research Centre for Biomedical Science of St. Michael's Hospital. Credit Unity Health Toronto Usage Restrictions Please credit Unity Health Toronto 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.