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| Item Type: | Article |
|---|---|
| Title: | Body iron stores and risk of type 2 diabetes: results from the European Prospective Investigation into Cancer and Nutrition (EPIC)-Potsdam study |
| Creators Name: | Montonen, J. and Boeing, H. and Steffen, A. and Lehmann, R. and Fritsche, A. and Joost, H.G. and Schulze, M.B. and Pischon, T. |
| Abstract: | AIMS/HYPOTHESIS: The aim of this study was to prospectively examine the association between body iron stores and risk of type 2 diabetes. METHODS: We designed a case-cohort study among 27,548 individuals within the population-based European Prospective Investigation into Cancer and Nutrition (EPIC)-Potsdam study. During 7 years of follow-up, 849 incident cases of type 2 diabetes were identified. Of these, 607 remained for analyses after exclusion of participants with missing data or abnormal glucose levels at baseline. A sub-cohort of 2,500 individuals was randomly selected from the full cohort, comprising 1,969 individuals after applying the same exclusion criteria. RESULTS: After adjustment for age, sex, BMI, waist circumference, sports activity, bicycling, education, occupational activity, smoking habit, alcohol consumption and circulating levels of gamma-glutamyltransferase, alanine aminotransferase, fetuin-A, high-sensitivity C-reactive protein, adiponectin, HDL-cholesterol and triacylglycerol, higher serum ferritin concentrations were associated with a higher risk of type 2 diabetes (RR in the highest vs lowest quintile, 1.73; 95% CI 1.15, 2.61; p (trend) = 0.002). No significant association was observed for soluble transferrin receptor (RR 1.33; 95% CI 0.85, 2.09; p (trend) = 0.50). The soluble transferrin receptor-to-ferritin ratio was significantly inversely related to risk (RR 0.61; 95% CI 0.41, 0.91; p (trend) = 0.02). CONCLUSIONS/INTERPRETATION: High ferritin levels are associated with higher risk of type 2 diabetes independently of established diabetes risk factors and a range of diabetes biomarkers whereas soluble transferrin receptor concentrations are not related to risk. These results support the hypothesis that higher iron stores below the level of haemochromatosis are associated with risk of type 2 diabetes. |
| Keywords: | Body Iron Store, Ferritin, Soluble Transferrin Receptor, Type 2 Diabetes |
| Source: | Diabetologia |
| ISSN: | 0012-186X |
| Publisher: | Springer |
| Volume: | 55 |
| Number: | 10 |
| Page Range: | 2613-2621 |
| Date: | October 2012 |
| Additional Information: | Erratum in: Diabetologia 55(11): 3144. |
| Official Publication: | https://doi.org/10.1007/s00125-012-2633-y |
| PubMed: | View item in PubMed |
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