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Horm Metab Res. 2000 Oct;32(10):407-12.

Enhanced acute-phase response and oxidative stress in older adults with type II diabetes.

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Internal Medicine, Hospital Universatorio La Paz, Spain.



To test whether oxidative stress could promote a systemic acute-phase response in elderly patients with type II diabetes.


In a group of 30 older diabetic patients with poor glycemic control, serum levels of lipid peroxides, measured as thiobarbituric acid-reacting substances (TBARS); C-reactive protein (CRP); interleukin (IL)-6 and the soluble form of its receptor (slL-6R), were evaluated at baseline and after 2 and 3 months of therapeutic intervention. Thirty asymptomatic, untreated individuals with abnormal fasting glycemia, but otherwise healthy status, of similar age, sex, and weight served as control group.


At baseline, glycemia (8.83 +/- 0.67mmol/l), HbA1C (8.66 +/- 0.59%), TBARS (8.68 +/- 1.21 micromol/l), CRP (16.05 +/- 3.81 mg/l) IL-6 (5.39 +/- 1.25 pg/ml) and sIL-6R (1425 +/- 492 pg/ml) were significantly higher in diabetic patients than in asymptomatic hyperglycemic individuals (p<0.001). After treatment, glycemia significantly decreased with respect to baseline values (- 9.82% after 60 days and -13.74% after 90 days), as did serum levels of TBARS (-14.05% and -21.89%, respectively), CRP (-32.71% and -43.86%), IL-6 (-23.75% and -40.63%) and sIL-6R (-34.53% and -48.49%, respectively). In diabetic patients, multiple regression showed, at each time, that TBARS and IL-6 were independently correlated with CRP, considering CRP as the dependent variable. Similar correlations were found in asymptomatic hyperglycemic subjects.


These results suggest that oxidative stress might be implicated in promoting a state of low-grade systemic inflammation in elderly patients with type II diabetes.

[Indexed for MEDLINE]

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