Comparison of glycated albumin (GA) and glycated hemoglobin (HbA1c) in type 2 diabetic patients: usefulness of GA for evaluation of short-term changes in glycemic control.

Abstract:

:We studied the cross-sectional relationship between GA and HbA1c in 142 type 2 diabetic patients who had an HbA1c level < 7.5% for at least one year without fluctuation by more than 0.5%. We also followed the changes of GA and HbA1c in 18 type 2 diabetic patients for 16 weeks as they progressed from untreated severe hyperglycemia (HbA1c > or = 9.0%) to good glycemic control (HbA1c < or = 6.5%) by intensive insulin treatment. The annual mean levels of GA and HbA1c in the stably controlled patients showed a weak, but significant, correlation (r = 0.23, p<0.001) in the 142 diabetic patients. However, the GA/HbA1c ratio ranged widely from 2.0 to 4.0 showing a normal distribution (2.9 +/- 0.34, M +/- SE), although patients with conditions affecting albumin turnover or RBC lifespan were excluded from the study. The GA/HbA1c ratio was significantly higher when patients were in hyperglycemic than when glycemic control was good (3.5 +/- 0.15 vs. 2.9 +/- 0.07, M +/- SE, p<0.01). GA decreased more rapidly than HbA1c during intensive insulin therapy, but the percent reduction of HbA1c eventually corresponded with that of GA by 16 weeks after the start of treatment. These results demonstrate that, although unknown influences on GA or HbA1c may exist, GA may be a useful marker for monitoring short-term variations of glycemic control during treatment of diabetic patients.

journal_name

Endocr J

journal_title

Endocrine journal

authors

Takahashi S,Uchino H,Shimizu T,Kanazawa A,Tamura Y,Sakai K,Watada H,Hirose T,Kawamori R,Tanaka Y

doi

10.1507/endocrj.k06-103

subject

Has Abstract

pub_date

2007-02-01 00:00:00

pages

139-44

issue

1

eissn

0918-8959

issn

1348-4540

pii

JST.JSTAGE/endocrj/K06-103

journal_volume

54

pub_type

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