Journal
DIABETES CARE
Volume 36, Issue 1, Pages 163-165Publisher
AMER DIABETES ASSOC
DOI: 10.2337/dc12-0494
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Funding
- Swedish Research Council [2006-6555]
- Swedish Heart-Lung Foundation
- Thureus Foundation
- Dalarna University
- Uppsala University
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OBJECTIVE-To investigate associations between serum cathepsin S, impaired insulin sensitivity, defective insulin secretion, and diabetes risk in a community-based sample of elderly men without diabetes. RESEARCH DESIGN AND METHODS-Serum cathepsin S, insulin sensitivity (euglycemic-hyperinsulinemic clamp), and insulin secretion (early insulin response during an oral glucose tolerance test) were measured in 905 participants of the Uppsala Longitudinal Study of Adult Men (mean age, 71 years). Thirty participants developed diabetes during 6 years of follow-up. RESULTS-After adjustment for age, anthropometric variables, and inflammatory markers, higher cathepsin S was associated with decreased insulin sensitivity (regression coefficient per SD increase 20.09 [95% CI 20.14 to 20.04], P = 0.001), but no association with early insulin response was found. Moreover, higher cathepsin S was associated with a higher risk for developing diabetes (odds ratio per SD increase 1.48 [1.08-2.01], P = 0.01). CONCLUSIONS-Cathepsin S activity appears to be involved in the early dysregulation of glucose and insulin metabolism. Diabetes Care 36: 163-165, 2013
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