Klebl, Frank H. and Bataille, Frauke and Bertea, Claudia R. and Herfarth, Hans and Hofstädter, Ferdinand and Schölmerich, Jürgen and Rogler, Gerhard (2003) Association of perinuclear antineutrophil cytoplasmic antibodies and anti-Saccharomyces cerevisiae antibodies with Vienna classification subtypes of Crohn's disease. Inflammatory bowel diseases 9 (5), pp. 302-307.
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BACKGROUND: The Vienna classification of Crohn's disease (CD) subdivides patients according to their age at diagnosis (A), disease location (L), and disease behavior (B). AIM The aim of this study was to test whether perinuclear antineutrophil cytoplasmic antibodies (pANCAs) or anti-Saccharomyces cerevisiae antibodies (ASCAs) correlate to subtypes of CD according to this classification. METHODS: pANCA, ASCA-immunoglobulin (Ig) A, and ASCA-IgG were detected by indirect immunofluorescence in 120 sera of patients with CD and compared with their Vienna classification. RESULTS: Patients with diagnosis of CD at an age of 40 years or older (A2) were more frequently pANCA-positive than those whose disease started at a younger age (A1) (19% vs. 5%, p < 0.05). pANCA-positive patients almost exclusively belonged to the nonpenetrating disease groups (B1 and B2); only one patient had penetrating disease (B3) (B3 vs. non-B3: p = 0.02). There was a cluster of pANCA-positive patients within the A1 B2 L3 subgroup (B2: stricturing disease; L3: ileocolonic involvement). Only 7.5% of ASCA-IgA-positive patients presented with CD that was limited to the colon (L2). ASCA-IgA and ASCA-IgG were more frequently found in patients with upper gastrointestinal disease (L4) (ASCA-IgA: 66.7% vs. 31.5% in non-L4, p < 0.05; ASCA-IgG: 44.4% vs. 27.9%, p < 0.05). CONCLUSION: pANCA and ASCA may be useful in predicting subtypes of CD. They therefore may be helpful in developing subtype-specific disease management strategies.
|Institutions:||Medicine > Lehrstuhl für Pathologie|
|Subjects:||600 Technology > 610 Medical sciences Medicine|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||18 Jun 2010 10:23|
|Last Modified:||18 Jun 2010 10:23|
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