Increase in Serum Ceruloplasmin with Aging is not Observed in Type 2 Diabetes.

概要

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Changes of serum ceruloplasmin (Cp) levels have been reported in many conditions including diabetes mellitus (DM), in which the serum Cp levels were increased. In this study, we have examined the influence of aging on serum Cp levels in normal individuals and in individuals with DM. Serum Cp levels were measured in 85 outpatients with type 2 diabetes (type 2 DM group) as well as in 71 healthy individuals (control group). All patients recruited for this study were negative for the glutamic acid decarboxylase (GAD) antibody. The subjects were sub-grouped based on their ages (<55 and 55≤). The serum Cp levels in the control group increased significantly with aging (r=0.325, p<0.0055), while levels in the type 2 DM group did not (r=0.091, p=0.4079). The levels in the type 2 DM group (<55) were significantly higher than those in the control group (<55) (p=0.0029), while the Cp levels in the type 2 DM group (55≤) were not different from those in the control group (55≤) (p=0.4187). An age-related increase of serum Cp levels was observed in normal individuals, but this change was not observed in type 2 DM patients since serum Cp levels in type 2 DM patients of all ages were similar to the levels in normal elderly individuals.
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