GLUCOSE-METABOLISM DURING THE STARVED-TO-FED TRANSITION IN OBESE PATIENTS WITH NIDDM

被引:31
作者
FERY, F
BALASSE, EO
机构
[1] FREE UNIV BRUSSELS,ERASMUS HOSP,EXPTL MED LAB,BRUSSELS,BELGIUM
[2] FREE UNIV BRUSSELS,ERASMUS HOSP,DEPT ENDOCRINOL,BRUSSELS,BELGIUM
关键词
D O I
10.2337/diabetes.43.12.1418
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
To analyze the effects of short-term fasting on postprandial glucose metabolism in non-insulin-dependent diabetes mellitus (NIDDM), two groups of nine obese NIDDM patients and two comparable groups of control subjects underwent a 5-h oral glucose tolerance test after either 14 h or 4 days of fasting. The fluxes and the rates of oxidation and storage of glucose were measured using a dual isotope technique combined with indirect calorimetry. The effect of fasting on insulin action and p-cen responsiveness was tested in an additional group of six obese NIDDM patients with a euglycemic hyperinsulinemic clamp followed by an intravenous glucagon test. In the diabetic patients, fasting enhanced beta-cell response to glucose and glucagon and did not modify insulin action, This response differs from that of nondiabetic subjects in whom fasting is known to impair insulin secretion and action. Regarding glucose fluxes, it was observed that in the overnight-fasted state, the incremental tissular disposal following glucose ingestion was reduced by similar to 50% in the diabetic versus control subjects in relation to an similar to 62% impairment in glucose storage. After fasting, incremental tissular disposal was restored to normal, glucose oxidation was virtually abolished, and storage was increased approximately threefold. Thus, in NIDDM patients, fasting corrects the defect in glycogen storage without modifying the action of insulin on glucose uptake and improves beta-cell responsiveness, the latter two effects being opposite to those observed in nondiabetic subjects.
引用
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页码:1418 / 1425
页数:8
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