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Some Parameters of Inflammation & Oxidative Stress in Relation to the Risk of Type 2 Diabetes Mellitus

Author: Abdul Kareem H. Issa
Journal: Mustansiriya Medical Journal مجلة المستنصرية الطبية ISSN: 20701128 22274081 Year: 2010 Volume: 9 Issue: 1 Pages: 25-30
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Background Many clinical trials have indicated that lifestyle modification can delay or prevent the progression to type 2 diabetes in people with impaired glucose tolerance test (IGT). Detection of IGT requires a test which is inconvenient to screen for this condition in clinical practice or in the general population. Therefore, there is a need to search for additional significant risk factors for type 2 diabetes. Patients &methods Seventy two adults ≥ 40 years old (36 males and 36 females) were evaluated in this study. They were subjects who performed a brief 75-grams oral glucose tolerance test and were classified as having normal glucose tolerance (NGT group; 24 subjects), impaired glucose tolerance (IGT group; 24 subjects), or diabetes mellitus (DM group; 24 patients).In addition to hematocrit (PCV) and erythrocyte sedimentation rate (ESR), serum level of highly sensitive C-reactive protein (hsCRP) was measured. Also the serum levels of thiobarbituric acid-reactive substances (TBARS), iron, copper and ferric reducing ability of plasma (FRAP) were estimated in addition to erythrocyte glutathione (Ery-GSH) level. Results Both IGT group and DM group have a significantly high hsCRP mean level (2.59 ± 1.03 and 2.89 ± 0.90 respectively vs. 1.57 ± 1.40 mg /L in NGT group, P< 0.001), and a significantly decreased FRAP level (939.2 ± 157.4 and 961.5 ± 125.1 respectively vs. 1063 ± 104.5 µmole/L in NGT group, p< 0.01 ) as well as a significantly high TBARS and a significantly low Ery-GSH level in comparison with NGT group. The positive correlation between hsCRP and TBARS, although was statistically not significant, showed a step-wise increment from NGT, to IGT and to DM group (r = 0.01, 0.14 and 0.23 respectively). Conclusions IGT is associated with a state of low-grade inflammation and oxidative stress. Serum levels of hsCRP as a marker of inflammation and TBARS as a marker of oxidative stress may serve for identifying people at high risk for developing type 2 diabetes. Such people will be important targets for programs that are designed to prevent diabetes.

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