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Pancreas. 1997 Mar;14(2):192-8.

Relationships between beta-cell function and diabetic duration and albuminuria in type 2 diabetes mellitus.

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1
Section of Endocrinology and Metabolism, Kaohsiung Medical College, Taiwan.

Abstract

To clarify whether beta-cell function deteriorates with increasing albuminuria and duration of diabetes, we investigated the insulin and c-peptide response to oral glucose tolerance test in 47 healthy subjects and 75 normoalbuminuric (group 1), 30 microalbuminuric (group 2), and 35 macroalbuminuric (group 3) Type 2 diabetes mellitus patients. The total area under the insulin curve (AUCI) values of groups 1, 2, and 3 were 245 +/- 16, 193 +/- 17, and 88 +/- 8 pmol/L.h, respectively, significantly lower than that (624 +/- 34 pmol/L.h) of the healthy group. The mean total area under the c-peptide curve (AUCC-P) values of groups 1, 2, and 3, respectively, were 2.50 +/- 0.11, 2.05 +/- 0.15, and 1.73 +/- 0.07 nmol/L.h, respectively, significantly lower than that (5.47 +/- 0.19 nmol/L.h) of the healthy controls. The mean AUCI and AUCC-P values of group 3 were significantly reduced compared to those of group 1. The mean AUCI and AUCC-P values of patients with 0-5, 5-10, 10-15, and > 15 years' duration were significantly decreased compared to those of healthy subjects. The mean AUCI and AUCC-P values of patients with > 15 years' duration were significantly lower than those of patients with 0-5 years' duration. The mean hemoglobin Alc values of the three diabetic groups were not significantly different. These data suggest that beta-cell function deterioration was associated with increasing albuminuria and diabetic duration in Type 2 diabetic patients.

[Indexed for MEDLINE]

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