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Exp Clin Endocrinol Diabetes. 2005 Oct;113(9):534-7.

Association of interleukin-6, C-reactive protein, interleukin-10 and adiponectin plasma concentrations with measures of obesity, insulin sensitivity and glucose metabolism.

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Department of Internal Medicine 2, University of Köln, Köln, Germany.


Abnormal glucose tolerance is associated with subclinical chronic inflammation in patients with type 2 diabetes. The aim of this study was to investigate whether plasma concentrations of inflammatory markers are associated with measures of obesity, insulin sensitivity, and hyperglycemia. IL-6, adiponectin, CRP, and IL-10 plasma concentrations were evaluated in 142 patients with a wide range of obesity, insulin sensitivity and glucose tolerance. In parallel with the impairment of glucose tolerance, there was a significant increase in IL-6, and CRP, and a significant decrease in adiponectin and IL-10 plasma concentrations. There were significant correlations between the plasma concentrations of all inflammatory markers and % body fat, insulin sensitivity, and fasting plasma glucose. However, multivariate linear regression analysis identified insulin sensitivity as determined by glucose infusion rate during the steady state of an euglycemic-hyperinsulinemic clamp as the strongest predictor of adiponectin, CRP, IL-6, and IL-10 plasma concentrations. In addition, fasting plasma glucose was a significant determinant of adiponectin, CRP, and IL-6 plasma concentrations, whereas body fat content was only a significant predictor of CRP plasma concentration. In conclusion, our data suggest that abnormal inflammatory markers in patients with type 2 diabetes are primarily related to decreased insulin sensitivity.

[Indexed for MEDLINE]

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