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Diurnal Variation In Response To Intravenous Glucose
Margaret J. Whichelow, R. A. Sturge, H. Keen, R. J. Jarrett, L. Stimmler and Susan Grainger
The British Medical Journal
Vol. 1, No. 5906 (Mar. 16, 1974), pp. 488-491
Published by: BMJ
Stable URL: http://www.jstor.org/stable/25423056
Page Count: 4
You can always find the topics here!Topics: Insulin, Blood, Sugars, Fasting, Biological rhythms, Blood plasma, Hormones, Medical journals, Glucose tolerance, Insulin resistance
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Intravenous glucose tolerance tests (25 g) were performed in the morning and afternoon on 13 apparently normal persons. The individual K values (rate of decline of blood sugar) were all higher in the morning tests, and the mean values were significantly higher in the morning. Fasting blood sugar levels were slightly lower in the afternoon. There was no difference between the fasting morning and afternoon plasma insulin levels, but the levels after glucose were lower in the afternoon. Growth hormone levels were low at all times in non-apprehensive subjects and unaffected by glucose. The results suggest that the impaired afternoon intravenous glucose tolerance, like oral glucose tolerance, is associated with impaired insulin release and insulin resistance.
The British Medical Journal © 1974 BMJ