415a – Anti-Tumor Necrosis Factor Therapy is Not Associated with Post-Operative Infection: Results from Prospective Cohort of Ulcerative Colitis and Crohn's Disease Patients Undergoing Surgery to Identify Risk Factors for Postoperative Infection I (Puccini)

tissue retention.Our data also suggest that a therapeutic blockade of both α4β7 and αEβ7 such as provided by etrolizumab may provide more efficient inhibition of T cell accumulation and retention in the gut, which could be important in altering the pathogenesis of inflammatory bowel disease.