title: Development of Crohn's disease following anti-tumour necrosis factor therapy (etanercept).
abstract: Inhibition of tumour necrosis factor (TNF)-alpha is effective in the treatment of rheumatoid arthritis and other inflammatory rheumatic diseases. Anti-TNF antibodies such as infliximab, etanercept and adalimumab are commonly used. There are structural and functional differences among these agents. We describe development of Crohn's disease in a patient with ankylosing spondylitis receiving anti-TNF therapy. This case suggests that the appearance of gastrointestinal symptoms in patients on anti-TNF therapy must be evaluated to find out whether this is a new onset or an exacerbation of underlying inflammatory bowel disease.
authors.affiliation: Division of Rheumatology, Department of Internal Medicine, Medical School, Akdeniz University, Antalya, Turkey. drvyazisiz@yahoo.com.tr
authors.forename: V
authors.initials: V
authors.lastname: Yazisiz
authors.forename: A B
authors.initials: AB
authors.lastname: Avci
authors.forename: F
authors.initials: F
authors.lastname: Erbasan
authors.forename: B
authors.initials: B
authors.lastname: Yildirim
authors.forename: E
authors.initials: E
authors.lastname: Terzioğlu
mesh_terms: D000911:Antibodies, Monoclonal / Q000494:pharmacology; D003424:Crohn Disease / Q000139:chemically induced* / Q000175:diagnosis / Q000276:immunology; D000068800:Etanercept; D006801:Humans; D007074:Immunoglobulin G / Q000009:adverse effects* / Q000494:pharmacology / Q000627:therapeutic use; D000069285:Infliximab; D008297:Male; D018124:Receptors, Tumor Necrosis Factor / Q000627:therapeutic use; D013167:Spondylitis, Ankylosing / Q000453:epidemiology / Q000276:immunology; D014409:Tumor Necrosis Factor-alpha / Q000037:antagonists & inhibitors*; D055815:Young Adult
chemical_list: D000911:Antibodies, Monoclonal; D007074:Immunoglobulin G; D018124:Receptors, Tumor Necrosis Factor; D014409:Tumor Necrosis Factor-alpha; D000069285:Infliximab; D000068800:Etanercept