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Indian J Clin Biochem. 2008 Jan;23(1):67-70. doi: 10.1007/s12291-008-0016-4. Epub 2008 Mar 6.

Relationship between free iron and glycated hemoglobin in uncontrolled type 2 diabetes patients associated with complications.

Author information

1
Department of Biochemistry, Kasturba Medical College, Manipal, 576104 Karnataka India.

Abstract

Free iron in serum has been found in several disease conditions including diabetes. In the present work, we studied the relationship between free iron, fasting blood glucose (FBG) and glycated haemoglobin (HbA(1c)). Study was carried out on 50 type 2 diabetes cases under poor glycemic control associated with complications, 53 type 2 diabetes cases under good glycemic control and 40 healthy controls. We estimated free iron, both ferrous (Fe(+2)) and ferric (Fe(+3)) form, protein thiols, lipid hydroperoxides, FBG, HbA1c and serum ferritin levels in serum. There was a significant increase in free iron in Fe(+3) state (p <0.01), HbA(1c) (p<0.01), serum ferritin (p<0.01), lipid hydroperoxides (p<0.01) and significant decrease in protein thiols (<0.01) in diabetes cases under poor glycemic control compared to diabetes cases under good glycemic control and healthy controls. Free iron correlated positively with HbA(1c) (p<0.01). Poor glycemic control and increase in glycation of haemoglobin is contributing to the increase in free iron pool which is known to increase oxidant generation.

KEYWORDS:

Ferritin; Free Iron; Glycated Hemoglobin

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