Abstract:
BACKGROUND AND AIMS:We have shown previously that concentrations of stool decay-accelerating factor (DAF; CD55), a complement regulatory protein, in patients with ulcerative colitis (UC) are increased in relation to the severity of the colonic mucosal inflammation. In the present study, we evaluated the usefulness of stool DAF as a marker for monitoring disease activity in patients with steroid-resistant active UC being treated with leukocyte apheresis performed with a centrifugal cell separator. METHODS:Twenty-one patients with active and steroid-resistant UC were treated with leukocyte apheresis once a week for 4 weeks, and stool DAF concentrations were determined weekly by immunoassay. RESULTS:After treatment, 11 (52%) of the 21 UC patients went into remission. Stool DAF concentrations decreased promptly and steadily in the responsive group. The difference reached statistical significance as soon as after the second apheresis session (P < 0.003), compared with values before the therapy and corresponding values in the non-responsive group (P = 0.024). The reduction in stool DAF concentrations after the second apheresis session was significantly greater in the responsive group (median 90%, range 22-90%) than in the non-responsive group (median -13%, range -307-94%) (P = 0.008). Hematological tests, that is, white blood cell (WBC) count and C-reactive protein, declined significantly during the apheresis therapy, but not in relation to therapeutic response. CONCLUSION:Stool DAF concentration is a useful marker in the clinical response of UC patients to treatment with leukocyte apheresis.
journal_name
J Gastroenterol Hepatoljournal_title
Journal of gastroenterology and hepatologyauthors
Kohno H,Mizuno M,Nasu J,Makidono C,Hiraoka S,Inaba T,Yamamoto K,Okada H,Fujita T,Shiratori Ydoi
10.1111/j.1440-1746.2004.03545.xsubject
Has Abstractpub_date
2005-01-01 00:00:00pages
73-8issue
1eissn
0815-9319issn
1440-1746pii
JGH3545journal_volume
20pub_type
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