title: Antibodies in patients with inflammatory bowel disease and the apparent influence of medications.
abstract: Patients with inflammatory bowel disease (IBD) are known to have increased antibodies to several food and bacterial antigens. To assess selected isotype contributions in greater detail, we examined the concentrations of IgA, IgG, IgE, and IgG4 antibodies to five selected antigens, two of bacterial and three of food origin. Thirty patients with IBD and thirty matched healthy controls were studied. Most antibodies were increased in IBD patients compared to controls. Statistically significant increases were more frequent in Crohn's disease (CD) than in ulcerative colitis (UC). An unexpected finding was that IBD patients treated with sulfasalazine had statistically higher levels of most IgA antibodies than healthy controls, while steroid treated patients had lower levels. These findings suggest differing effects on the immune systems of IBD patients by each of these commonly used drugs.
authors: Department of Pediatrics, Harbor-UCLA Medical Center, Torrance, USA.
authors: C H
authors: CH
authors: Song
authors: C M
authors: CM
authors: Vadheim
authors: W J
authors: WJ
authors: Snape
authors: D C
authors: DC
authors: Heiner
mesh_terms: D000328:Adult; D000368:Aged; D000818:Animals; D000942:Antigens, Bacterial / Q000276:immunology*; D002364:Caseins / Q000276:immunology; D003093:Colitis, Ulcerative / Q000276:immunology; D003424:Crohn Disease / Q000276:immunology; D005502:Food / Q000009:adverse effects*; D005903:Gliadin / Q000276:immunology; D006193:Haemophilus influenzae / Q000276:immunology; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis* / Q000187:drug effects; D015212:Inflammatory Bowel Diseases / Q000188:drug therapy / Q000276:immunology*; D008875:Middle Aged; D015999:Multivariate Analysis; D011863:Radioimmunoassay; D012710:Serum Albumin, Bovine / Q000276:immunology; D013256:Steroids / Q000627:therapeutic use; D012460:Sulfasalazine / Q000627:therapeutic use; D013745:Tetanus Toxoid / Q000276:immunology
chemical_list: D000942:Antigens, Bacterial; D002364:Caseins; D007136:Immunoglobulins; D013256:Steroids; D013745:Tetanus Toxoid; D012710:Serum Albumin, Bovine; D012460:Sulfasalazine; D005903:Gliadin