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Interleukin-10 in the pathophysiology of inflammatory bowel disease: increased serum concentrations during the

Keiichi Mitsuyama1, Nobuo Tomiyasu, Kosuke Takaki

  • 1Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Japan.

Mediators of Inflammation
|March 30, 2007
PubMed

Using a specific enzyme-linked immunosorbent assay, IL-10 concentrations were measured in serum from 62 patients with ulcerative colitis (UC), 43 with Crohn's disease (CD), 25 with other colitides, and 44 normal control subjects. Serum IL-10 concentrations were increased in patients with active UC but not in those with active CD when compared with normal control subjects. A time course study showed that in patients with UC and CD, serum concentrations of IL-6 and C-reactive protein increased during the acute phase and returned to normal as patients go into remission. Notably, serum IL-10 concentrations increased during the phase of disease resolution and declined thereafter regardless of the treatment modality. Gel filtration analysis indicated that IL-10 circulated predominantly as a dimer. In conclusion, this study shows that serum IL-10 is increased during disease recovery in patients with inflammatory bowel disease, and may be a helpful marker in monitoring disease status.

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