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Enhanced formation of advanced oxidation protein products in IBD.
- Source :
-
Inflammatory bowel diseases [Inflamm Bowel Dis] 2008 Jun; Vol. 14 (6), pp. 794-802. - Publication Year :
- 2008
-
Abstract
- Background: Advanced oxidation protein products (AOPPs) are new protein markers of oxidative stress with pro-inflammatory properties, accumulated in many pathological conditions. The issue of their enhanced formation in IBD has not been addressed yet.<br />Methods: The concentration of relative AOPPs (rAOPP; concentration of AOPPs divided by albumin level) were measured in 68 subjects with ulcerative colitis (UC), 50 subjects with Crohn's disease (CD) and 45 healthy volunteers, and related to disease phenotype, clinical and biochemical activity, and therapeutic strategy. Diagnostic utility of rAOPP was evaluated by ROC analysis.<br />Results: In comparison with controls (1.367 micromol/g), rAOPP were increased in inactive (1.778 micromol/g, P = 0.053) and active (1.895 micromol/g, P = 0.013) UC and in active (1.847 micromol/g, P = 0.003) CD. In CD, but not UC, rAOPP correlated with disease activity (r = 0.42, P = 0.013). Significant correlations with the inflammatory/malnutrition indices-erythrocyte sedimentation rate (ESR) (r = 0.53), leukocytes (r = 0.33), platelets (r = 0.38), IL-6 (r = 0.36), and transferrin (r = -0.35) were demonstrated in CD. In UC, rAOPP correlated only with ESR (r = 0.35) and IL-6 (r = 0.30). Instead, associations with antioxidant dismutase (r = 0.29) and catalase (r = 0.22) were observed. The diagnostic power of rAOPP in discriminating diseased from non-diseased subjects was less than that of C-reactive protein (CRP). Simultaneous determination of rAOPP and CRP did not significantly improve the power of single CRP determination.<br />Conclusions: IBD was associated with enhanced formation of AOPP, which differed between C and UC with respect to the relationship between rAOPP and disease activity, inflammatory and antioxidant response. These differences may reflect divergent ways that oxidative stress develops in CD and UC. The diagnostic power of rAOPP was insufficient for its clinical application.
- Subjects :
- Adolescent
Adult
Aged
C-Reactive Protein analysis
Colitis, Ulcerative blood
Crohn Disease blood
Female
Humans
Inflammation blood
Inflammatory Bowel Diseases diagnosis
Interleukin-6 blood
Lipids blood
Male
Malnutrition blood
Middle Aged
Oxidation-Reduction
ROC Curve
Transferrin analysis
Biomarkers blood
Blood Proteins metabolism
Inflammatory Bowel Diseases blood
Oxidative Stress physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1078-0998
- Volume :
- 14
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Inflammatory bowel diseases
- Publication Type :
- Academic Journal
- Accession number :
- 18213700
- Full Text :
- https://doi.org/10.1002/ibd.20383