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Effect of tumor necrosis factor-α antagonists on oxidative stress in patients with Crohn's disease. | LitMetric

Effect of tumor necrosis factor-α antagonists on oxidative stress in patients with Crohn's disease.

World J Gastroenterol

Kazunari Yamamoto, Toshimi Chiba, Takayuki Matsumoto, Division of Gastroenterology, Department of Internal Medicine, School of Medicine, Iwate Medical University, Morioka City, Iwate 020-8505, Japan.

Published: September 2015

AI Article Synopsis

Article Abstract

Aim: To investigate changes in oxidative stress in Crohn's disease (CD) before and after anti-tumor necrosis factor (TNF)-α treatment.

Methods: A total of 42 patients with active CD, who were scheduled to be treated by anti-TNF-α antibodies, were enrolled. Serum levels of diacron-reactive oxygen metabolites (d-ROM), biological antioxidant potential (BAP), and modified ratio of oxidative stress and antioxidant capacity (m-OA) were measured using the Free Radical Analytical System before and 8 wk after induction of therapy with infliximab or adalimumab. The values for oxidative stress were correlated with disease activity and clinical response as determined by the CD activity index (CDAI) at 8 and 54 wk after the therapy.

Results: Prior to treatment, d-ROM showed significant correlations with CDAI (r = 0.42, P < 0.01). There was a significant negative correlation between m-OA and CDAI before and after treatment (r = -0.48 vs r = -0.42, P < 0.01). CDAI and d-ROM had decreased significantly by 8 wk after treatment (CDAI; 223.3 ± 113.2 vs 158.3 ± 73.4, P < 0.01, d-ROM; 373 ± 133 vs 312 ± 101, P < 0.05). However, neither BAP nor m-OA had changed significantly. In patients who had responded to the treatment at 8 wk, d-ROM, BAP, and m-OA levels before treatment did not differ significantly between patients with and without loss of response.

Conclusion: Anti-TNF-α therapy decreases oxidative stress in patients with CD, but does not alter the production of antioxidants. Dysregulation of antioxidants may be associated with the disease.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4572802PMC
http://dx.doi.org/10.3748/wjg.v21.i35.10208DOI Listing

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