Affiliation:
1. Department of Internal Medicine, Sasebo Chuou Hospital Sasebo City, Nagasaki, Japan
2. First Department of Internal Medicine, Nagasaki University School of Medicine Nagasaki, Japan
Abstract
OBJECTIVE
To investigate the effects of voglibose, an α-glucosidase inhibitor, on daily glycemic excursions, insulin secretion, and insulin sensitivity in non-insulin-treated NIDDM patients.
RESEARCH DESIGN AND METHODS
An open prospective study was conducted in 27 NIDDM patients receiving diet therapy alone or treatment with a sulfonylurea drug. Of the study subjects, 14 patients were treated with voglibose; the remaining 13 patients served as the control group. The metabolic parameters were evaluated before treatment and at week 4 of treatment as follows: glycemic excursions by M-value and 1,5-anhydro-D-glucitol (1,5-AG), insulin secretion by area under the curve of daily serum insulin (AUCinsulin), and insulin sensitivity by the K index of the insulin tolerance test (KITT).
RESULTS
After the study treatment, HbA1c and plasma glucose in the patients who had received voglibose were comparable to those of patients in the control group. M-value was lower in the patients treated with voglibose than in the control subjects (5.7 ± 0.9 vs. 9.8 ± 1.2, P < 0.05). 1,5-AG was higher in the patients treated with voglibose than in the control subjects (12.2 ± 1.0 vs. 8.2 ± 0.7 μg/ml, P < 0.01). A statistically significant decrease in AUCinsuiin occurred after treatment with voglibose (2,223.5 ± 390.6 to 1,546.7 ± 303.4 pmol · l−1 · h, P < 0.05), but no change occurred in the control group (2,364.5 ± 315.4 to 2,464.2 ± 269.3 pmol · l−1 · h, P = 0.60). Insulin sensitivity (KITT) was improved to a statistically significant level in both the patients treated with voglibose and the patients in the control group. KITT in the patients after voglibose treatment was comparable to that of the control group (3.18 ± 0.30 vs. 3.21 ± 0.23%/min, P = 0.94).
CONCLUSIONS
The results suggest that voglibose lowers the daily glycemic excursions and inhibits overwork of the pancreatic β-cells but has little effect on insulin sensitivity in NIDDM patients.
Publisher
American Diabetes Association
Subject
Advanced and Specialized Nursing,Endocrinology, Diabetes and Metabolism,Internal Medicine
Cited by
86 articles.
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