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Purpose : Iron accumulation interferes with hepatic insulin extraction and affects insulin synthesis and secretion. The purpose of this study is to investigate the correlation between serum ferritin and type 2 diabetes mellitus. Methods : We compared the serum ferritin level among 18 patients in an ...

Purpose : Iron accumulation interferes with hepatic insulin extraction and affects insulin synthesis and secretion. The purpose of this study is to investigate the correlation between serum ferritin and type 2 diabetes mellitus. Methods : We compared the serum ferritin level among 18 patients in an impaired glucose tolerance (IGT) group, 36 in a type 1 diabetes group, eight in a type 2 diabetes group and 29 in a healthy control group. The correlation between serum ferritin levels and sex, body mass indices(BMI), blood pressure(BP), serum fasting sugar level and serum fasting insulin level were also analyzed. Results : The mean log ferritin were $1.33{\pm}0.32$(healthy control group), $1.63{\pm}0.19$(IGT group) and $1.90{\pm}0.30$(type 2 diabetes group). In the IGT group, log ferritin was higher than in the healthy control group(P=0.001). The log ferritin of the type 2 diabetes group was higher than that of the healthy control group(P=0.001). Comparing log ferritin to other factors, log ferritin had a significant positive correlation with body mass indices(P<0.001), systolic blood pressure(P=0.001), and fasting glucose(P=0.001), fasting insulin(P=0.002). Conclusion : Compared to the normal healthy group, serum ferritin concentrations were significantly higher in the IGT group and the type 2 diabetes group. The elevation of serum ferritin concentration may be a risk factor of type 2 diabetes mellitus.

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