TY - CHAP M1 - Book, Section TI - Chapter 41. Inflammatory Bowel Disease A1 - Hemstreet, Brian A. A2 - Sutton, S. Scott PY - 2011 T2 - McGraw-Hill's NAPLEX® Review Guide AB - Inflammatory bowel disease (IBD) is a chronic inflammatory condition that affects mainly the gastrointestinal (GI) tract and consists of two major subtypes, ulcerative colitis (UC) and Crohn disease (CD). The incidence of UC in the United States is estimated to be 2 to 7 cases per 100,000 population per year, while CD is reported as approximately 5 cases per 100,000 population per year.1,2 While the underlying pathophysiology of IBD involves an abnormal response directed against the intestinal tract, the true cause of IBD has not been identified.2,3 Both genetic and environmental factors have been implicated as contributors to the development of IBD.4 Inflammatory bowel disease has been observed to occur more commonly in patients who report a positive family history of IBD.5 Another leading theory is that the inflammatory response is induced by the local bacterial flora that inhabit the human GI tract.3-6 Ultimately, the inflammatory response results in injury to the GI tract that may vary in location, depth, severity, and duration. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/24 UR - accesspharmacy.mhmedical.com/content.aspx?aid=7253760 ER -