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Inverse Association between Glycated Albumin and Insulin Secretory Function May Explain Higher Levels of Glycated Albumin in Subjects with Longer Duration of Diabetes

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  • Yong-ho Lee
  • Mi Hyang Kown
  • Kwang Joon Kim
  • Eun Young Lee
  • Daham Kim
  • Byung-Wan Lee
  • Eun Seok Kang
  • Bong Soo Cha
  • Hyun Chul Lee

Abstract

Background: Glycated albumin (GA) has been increasingly used as a reliable index for short-term glycemic monitoring, and is inversely associated with β-cell function. Because the pathophysiologic nature of type 2 diabetes (T2D) is characterized by progressive decline in insulin secretion, the aim was to determine whether GA levels were affected by diabetes duration in subjects with T2D. Methods: To minimize the effect of glucose variability on GA, subjects with stably maintained HbA1c levels of 1 year (n = 781) were recruited and categorized as New-T2D and Old-T2D, respectively. Biochemical, glycemic, and C-peptide parameters were measured. Results: GA levels were significantly elevated in HbA1c-matched Old-T2D subjects compared to New-T2D subjects. Duration of diabetes was positively correlated with GA, whereas a negative relationship was found with C-peptide increment (ΔC-peptide). Among insulin secretory indices, dynamic parameters such as ΔC-peptide were inversely related to GA (r = −0.42, p

Suggested Citation

  • Yong-ho Lee & Mi Hyang Kown & Kwang Joon Kim & Eun Young Lee & Daham Kim & Byung-Wan Lee & Eun Seok Kang & Bong Soo Cha & Hyun Chul Lee, 2014. "Inverse Association between Glycated Albumin and Insulin Secretory Function May Explain Higher Levels of Glycated Albumin in Subjects with Longer Duration of Diabetes," PLOS ONE, Public Library of Science, vol. 9(9), pages 1-8, September.
    • Handle: RePEc:plo:pone00:0108772
    DOI: 10.1371/journal.pone.0108772
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