低还原糖当量值玉米麦芽糊精用于管饲膳食对2型糖尿病血糖及胰岛素的影响

目的 探讨低还原糖当量（DE）值玉米麦芽糊精用于管饲膳食对2型糖尿病患者血糖和血胰岛素水平的影响。方法20例血糖已稳定的2型糖尿病志愿者分别于第1和8天给予两种不同的膳食作为早餐。两种早餐的总热能，蛋白质、脂肪、碳水化合物的供能比均基本相同，但试验早餐选用糖尿病管饲膳食（含一定量的低DE值玉米麦芽糊精替代部分大米），使膳食的粘稠度降低；而对照早餐选用稠厚的匀浆膳，不含麦芽糊精。应用同体比较的t检验，对比两种早餐的血糖和血胰岛素应答反应及不良反应。结果两种早餐相比，对照早餐和试验早餐前的空腹血糖、空腹血胰岛素水平、餐后30、60、120、180分钟的血糖以及血胰岛素浓度、血糖曲线下面积、血胰岛素曲线下面积差异均无显著性（P〉0．05）；服用两种早餐后均未发现任何不适反应。结论含低DE值玉米麦芽糊精的自制管饲膳食对2型糖尿病患者的血糖和血胰岛素水平无负面影响，而且患者对它的耐受性较好。

Effect of Low Dextrose Equivalent Maize Maltodextrin Used in the Tube-Fed Diet on Blood Glucose and Insulin Levels in Type 2 Diabetics

Objective To explore the effect of low dextrose equivalent (DE) maize maltodextrin on blood glucose and insulin levels in type 2 diabetics when it is used in tube-fed diet. Methods Twenty type 2 diabetic volunteers (nobody with insulin ) whose blood glucose levels had been stabilized were given two different diets as breakfast on day 1 and day 8. The trial breakfast chose the tube-fed diet for diabetics, in which partial rice was replaced by proper amounts of low DE maize maltodextrin to decrease its viscosity and thickness. The control breakfast selected the viscous and thick homogenate diet without maltodextrin. These two diets were basically equal in energy and rations of protein, fat, and carbohydrate. The blood glucose and insulin responses to these two diets were compared by self-control t test. Adverse reactions were observed. Results The differences between the control and trial breakfast were not significant in the fasting blood glucose and insulin concentrations as well as the blood glucose and insulin concentrations at postprandial 30, 60, 120, and 180 minutes (P >0.05). There were no statistical differences between these two diets in the areas under the curves of blood glucose and the areas under the curves of blood insulin (P >0.05). No adverse reaction was reported. Conclusion The tube-fed diet with low DE maize maltodextrin is well tolerated and do not adversely affect blood glucose and insulin levels in type 2 diabetics.