Cytokines and Genes in Therapeutic Response in Crohn's Disease
Cytokines and Genes in Therapeutic Response in Crohn's Disease
Inflammatory bowel disease (IBD), consisting of two major forms, Crohn's disease (CD) and
 ulcerative colitis (UC), affects more than 1.6 million people in the United States alone.
 Though the precise mechanisms underlying the inflammation and immune responses in IBD are
 still being investigated, various inflammatory mediators, including pro-inflammatory
 cytokines, and genes have been implicated in the disease process. At present, there are no
 reliable mechanisms to predict response to individual IBD medications. The investigators seek
 to evaluate whether inflammatory cytokines change longitudinally during treatment with
 anti-cytokine agents in both treatment primary responders and primary non-responders. In
 addition, the investigators will be evaluating the pharmacogenetics of treatment response to
 these agents.
Inclusion Criteria:

 -  Patients that are seen in the Inflammatory Bowel Disease clinic with Crohn's disease
 who are initiating either treatment as part of their routine clinical care.

 -  Healthy adults without IBD undergoing colonoscopy for colorectal cancer screening or
 other non-IBD related indication.

 Exclusion Criteria:

 -  pregnant

 -  have a known coagulopathy or bleeding disorder

 -  have known renal or hepatic impairment

 -  have a history of organ transplantation

 -  CD patients who are being seen in consultation and do not plan to receive longitudinal
 care through initiation their new therapy at the Vanderbilt IBD center will be
 excluded.