Comparability of indices for insulin resistance and insulin secretion determined during oral glucose tolerance tests

2006 ◽  
Vol 44 (7) ◽  
Author(s):  
Rainer Haeckel ◽  
Rüdiger Raber ◽  
Werner Wosniok
Keyword(s):  
Insulin Resistance ◽  
Insulin Secretion ◽  
Glucose Tolerance ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Oral Glucose Tolerance Tests ◽  
Glucose Tolerance Tests

AbstractClin Chem Lab Med 2006;44:817–23.

scholarly journals Absence of an Acute Insulin Response Predicts Onset of Type 2 Diabetes in a Caucasian Population with Impaired Glucose Tolerance

2008 ◽  
Vol 93 (7) ◽  
pp. 2633-2638 ◽  
Author(s):  
G. Nijpels ◽  
W. Boorsma ◽  
J. M. Dekker ◽  
F. Hoeksema ◽  
P. J. Kostense ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Insulin Secretion ◽  
Glucose Tolerance ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Hyperglycemic Clamp ◽  
Impaired Insulin ◽  
Oral Glucose Tolerance Tests ◽  
Glucose Tolerance Tests

Abstract Context: In persons with impaired glucose tolerance (IGT), both impaired insulin secretion and insulin resistance contribute to the conversion to type 2 diabetes mellitus (T2DM). However, few studies have used criterion standard measures to asses the predictive value of impaired insulin secretion and insulin resistance for the conversion to T2DM in a Caucasian IGT population. Objectives: The objective of the study was to determine the predictive value of measures of insulin secretion and insulin resistance derived from a hyperglycemic clamp, including the disposition index, for the development of T2DM in a Caucasian IGT population. Design, Setting, and Participants: The population-based Hoorn IGT study consisted of 101 Dutch IGT subjects (aged < 75 yr), with mean 2-h plasma glucose values, of two separate oral glucose tolerance tests, between 8.6 and 11.1 mmol/liter. A hyperglycemic clamp at baseline was performed to assess first-phase and second-phase insulin secretion and insulin sensitivity. During follow-up, conversion to T2DM was assessed by means of 6-monthly fasting glucose levels and yearly oral glucose tolerance tests. Results: The cumulative incidence of T2DM was 34.7%. Hazard ratio for T2DM development adjusted for age, sex, and body mass index was 5.74 [95% confidence interval (CI) 2.60–12.67] for absence of first insulin peak, 1.58 (95% CI 0.60–4.17) for lowest vs. highest tertile of insulin sensitivity, and 1.78 (95% CI 0.65–4.88) for lowest vs. highest tertile of the disposition index. Conclusions: In these Caucasian persons with IGT, the absence of the first insulin peak was the strongest predictor of T2DM.

Low carbohydrate intake and oral glucose-tolerance tests

The Lancet ◽  
1998 ◽  
Vol 352 (9135) ◽  
pp. 1223 ◽  
Author(s):  
Keiji Yoshioka ◽  
Sadayoshi Yokoh ◽  
Toshihide Yoshida
Keyword(s):  
Glucose Tolerance ◽  
Carbohydrate Intake ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Low Carbohydrate ◽  
Oral Glucose Tolerance Tests ◽  
Glucose Tolerance Tests

scholarly journals ogttMetrics: Data structures and algorithms for oral glucose tolerance tests

F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 684
Author(s):  
Benjamin J. Stubbs ◽  
Keith Frankston ◽  
Marcel Ramos ◽  
Nancy Laranjo ◽  
Frank M. Sacks ◽  
...  
Keyword(s):  
Glucose Tolerance ◽  
Open Source Software ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Estimation Of Parameters ◽  
Large Clinical Trial ◽  
Oral Glucose Tolerance Tests ◽  
Open Source Software Package ◽  
Glucose Tolerance Tests ◽  
Data Structures And Algorithms

We describe an open source software package, ogttMetrics, to compute diverse measures of glucose metabolism derived from oral glucose tolerance tests (OGTTs). Tools are provided to organize, visualize and compare OGTT data from large cohorts. Numerical difficulties in estimation of parameters of the Bergman minimal model are described, and in one large clinical trial, the simpler closed form index of Matsuda is observed to lead to similar rankings of individuals with respect to insulin sensitivity, and similar inferences concerning effects of modifications to carbohydrate content and glycemic index of experimental diets.

Reversibility of endocrine changes produced in guinea pigs by exposure to cold

1965 ◽  
Vol 208 (1) ◽  
pp. 115-117 ◽  
Author(s):  
Harry Sobel ◽  
George C. Haberfelde ◽  
Albert E. Reeves
Keyword(s):  
Glucose Tolerance ◽  
Guinea Pigs ◽  
Room Temperature ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Definite Evidence ◽  
Exposure To Cold ◽  
Thyroid Glands ◽  
Oral Glucose Tolerance Tests ◽  
Glucose Tolerance Tests

Guinea pigs were exposed continuously to a temperature of 2–4 C for 6 months. They were then reacclimatized to room temperature, and after 4–6 months certain tests were carried out. During control collections and following exposure to cold the previously cold-exposed animals exhibited urinary corticoid excretion values which were approximately 10% below those of their controls. Following intraperitoneal injection of ACTH the response was approximately 20% greater. However, these differences were not statistically significant. Oral glucose tolerance tests revealed definite evidence of reduction in tolerance in the previously cold-exposed animals. Six animals exhibited 150-min values which exceeded by more than 20 mg/ 100 ml the highest value observed in the controls. Fourteen others whose values fell within this limit exhibited a statistically significant increase in the 150-min value as compared with the controls. The PBI values were the same in each group. There were no histological residues in the pituitary, adrenal, pancreas, and thyroid glands.

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