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American Journal of Clinical Nutrition, Vol 53, 520-523, Copyright © 1991 by The American Society for Clinical Nutrition, Inc
ORIGINAL RESEARCH COMMUNICATIONS |
O Rasmussen and K Hermansen
Second University Clinic of Internal Medicine, Arhus Kommunehospital, Denmark.
The influence of preprandial blood glucose (PPBG) concentration on glycemic responses was studied in seven subjects with insulin-dependent diabetes who, by means of the artificial pancreas, had achieved PPBG concentrations of 6, 9, and 17 mmol/L. A test meal of 50 g parboiled rice was given at the three different occasions and a constant insulin infusion was provided during the observation periods. The mean postprandial-blood-glucose-response area (above basal) differed significantly at the three blood glucose concentrations of 6, 9, and 17 mmol/L, reaching 1371, 621, and 179 mmol/L x 240 min, respectively (P less than 0.01). A negative correlation between the PPBG concentrations and the glycemic responses to the test meal was found (r = 0.94; P less than 0.001). The fasting insulin concentration at a PPBG concentration of 17 mmol/L was lower than at a PPBG concentration of 6 and 9 mmol/L. In conclusion, the glycemic responses to a carbohydrate meal are inversely correlated to the PPBG concentration in insulin-dependent diabetic subjects.
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