Background: Pathogenesis of type 2 diabetes is a complex process and in most instances requires defects in both ß-cell function
and insulin sensitivity. In type 2 diabetes patients (T2DM), there is impaired of first phase insulin response, while the second
phase insulin response is diminished.
Objective: The present study examined the effect of glycaemic control on post prandial insulin after a standardized meal
among Type 2 diabetes patients with good and poor glycémie control.
Design: Cross sectional.
Methods and Results: We studied 31 Type 2 diabetes patients (T2DM) with good glycémie control and 32 T2DM patients
with poor glycémie control. Subjects were given, after minimum 10 hours of fasting, a standard meal containing 857.5 kcal of
energy. Fasting and serial postprandial blood samples were taken over 8 hours to determine levels of insulin and blood glucose
(every 30 minutes for 3 hours i.e. from 1st to 7"' sample; then hourly i.e. from 8" sample to 12"' sample).
Results: Although the difference in Insulin between the 2 groups did not reach statistical significance (P = 0.058), post-hoc
analysis showed significant difference between the 2 groups from fasting (1" sample) to 1 hour post prandial (3'''' sample), with P
= 0.034. Postprandial glucose was significantly higher in poor controlled diabetes patients compared to good control diabetes
patients (P < 0.001), and it was significant throughout the postprandial period.
Conclusion: Good glycémie control improves first phase insulin response to meal challenge in diabetes patients.
Background: Pathogenesis of type 2 diabetes is a complex process and in most instances requires defects in both ß-cell functionand insulin sensitivity. In type 2 diabetes patients (T2DM), there is impaired of first phase insulin response, while the secondphase insulin response is diminished.Objective: The present study examined the effect of glycaemic control on post prandial insulin after a standardized mealamong Type 2 diabetes patients with good and poor glycémie control.Design: Cross sectional.Methods and Results: We studied 31 Type 2 diabetes patients (T2DM) with good glycémie control and 32 T2DM patientswith poor glycémie control. Subjects were given, after minimum 10 hours of fasting, a standard meal containing 857.5 kcal ofenergy. Fasting and serial postprandial blood samples were taken over 8 hours to determine levels of insulin and blood glucose(every 30 minutes for 3 hours i.e. from 1st to 7"' sample; then hourly i.e. from 8" sample to 12"' sample).Results: Although the difference in Insulin between the 2 groups did not reach statistical significance (P = 0.058), post-hocanalysis showed significant difference between the 2 groups from fasting (1" sample) to 1 hour post prandial (3'''' sample), with P= 0.034. Postprandial glucose was significantly higher in poor controlled diabetes patients compared to good control diabetespatients (P < 0.001), and it was significant throughout the postprandial period.Conclusion: Good glycémie control improves first phase insulin response to meal challenge in diabetes patients.
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