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Hyperglycemia is a factor for an increase in serum ceruloplasmin in type 2 diabetes
1Third Department of Internal Medicine, Yamagata University, School of Medicine, Japan. mdaimon@med.id.yamagata-u.ac.jp
Objective:
To examine if there is a correlation between high blood glucose and serum ceruloplasmin (Cp) levels.
Research Design And Methods:
Serum Cp levels were measured in 637 patients with type 2 diabetes (all type 2 diabetes group). For the follow-up type 2 diabetes group, 161 patients who had not had any changes in their situation during the last year that are known to influence serum Cp levels were reexamined 1 year later. The control group was composed of 158 healthy individuals. Serum Cp and blood HbA1c levels were measured by radial immunodiffusion and high-performance liquid chromatography assays, respectively.
Results:
Serum Cp levels in the all type 2 diabetes group were significantly higher than those in the control group (P < 0.0001), although the serum Cp levels did not correlate with the blood HbA1c levels in the all type 2 diabetes group (r = 0.055, P = 0.351). Then we evaluated those factors (delta-log Cp and delta-HbA1c) in the follow-up type 2 diabetes group to minimize changes from the genetic differences and to exclude any known factors influencing serum Cp levels. This indicated that the delta-HbA1c had a positive correlation to the delta-log Cp (r = 0.304, P < 0.0001).
Conclusions:
A persistent high blood glucose (namely HbA1c) is associated with an increase in serum Cp levels over 1 year.