scholarly journals A Simple and Improved Predictor of Insulin Resistance Extracted From the Oral Glucose Tolerance Test: The I0*G60

2019 ◽  
Vol 3 (6) ◽  
pp. 1154-1166
Author(s):  
Patricio H Contreras ◽  
Ana M Salgado ◽  
Yanara A Bernal ◽  
Pilar Vigil
Keyword(s):  
Insulin Resistance ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance

scholarly journals QOL-43. ENDOCRINE AND METABOLIC CHANGES IN CHILDREN TREATED FOR MEDULLOBLASTOMA

2020 ◽  
Vol 22 (Supplement_3) ◽  
pp. iii439-iii439
Author(s):  
Alexey Kalinin ◽  
Natalia Strebkova ◽  
Olga Zheludkova
Keyword(s):  
Insulin Resistance ◽  
Body Composition ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Impaired Glucose Tolerance ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Hormone Deficiency ◽  
Oral Glucose ◽  
Oral Glucose Tolerance

Abstract We examined 63 patients (40 males/23 females) after complex treatment of medulloblastoma. Patients had a median age (range) of 11.3 (5.5 ÷ 17.9) years. The median time after the end of treatment was 3.7 (1.5 ÷ 11.6) years. Endocrine disorders were detected with the following frequency: growth hormone deficiency - 98.41% (62 of 63 patients), thyroid hormone deficiency – 69.8% (44/63), adrenal hormone deficiency - 17.4% (11/63). Three cases (4.7%) of premature sexual development were also detected. Lipids levels, beta-cell function and insulin resistance (IR) during 2-h oral glucose tolerance test were evaluated. A mono frequent bioelectrical impedanciometer was used to measure body composition. Overweight (SDS BMI> 1) was observed only in 16 patients (3 girls and 13 boys), obesity (SDS BMI> 2) in 1 boy. Dyslipidemia was found in 34 patients (54%). All patients underwent oral glucose tolerance test. Insulin resistance (ISI Matsuda <2.5 and/or HOMA-IR> 3.2) was detected in 7 patients (11/1%), impaired glucose tolerance (120 min glucose ≥7.8 mmol / l) was observed in 2 patients with IR and in 2 patients without IR. At the same time, IR and impaired glucose tolerance were encountered in only 5 children with overweight and no one with obesity. All patients with impaired glucose tolerance had normal values of fasting glucose (4.3 ÷ 5.04 mmol / l) and HbA1c (4.8 ÷ 5.8%). A bioelectrical impedanciometer was used to measure body composition in 49 cases, the percentage of adipose tissue was increased in 14 patients (28%) with normal BMI.

scholarly journals Comparing the Fasting and Random-Fed Metabolome Response to an Oral Glucose Tolerance Test in Children and Adolescents: Implications of Sex, Obesity, and Insulin Resistance

Nutrients ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 3365
Author(s):  
Jennifer L. LaBarre ◽  
Emily Hirschfeld ◽  
Tanu Soni ◽  
Maureen Kachman ◽  
Janis Wigginton ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Fatty Acid ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Acid Oxidation ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Nutrient Metabolism

As the incidence of obesity and type 2 diabetes (T2D) is occurring at a younger age, studying adolescent nutrient metabolism can provide insights on the development of T2D. Metabolic challenges, including an oral glucose tolerance test (OGTT) can assess the effects of perturbations in nutrient metabolism. Here, we present alterations in the global metabolome in response to an OGTT, classifying the influence of obesity and insulin resistance (IR) in adolescents that arrived at the clinic fasted and in a random-fed state. Participants were recruited as lean (n = 55, aged 8–17 years, BMI percentile 5–85%) and overweight and obese (OVOB, n = 228, aged 8–17 years, BMI percentile ≥ 85%). Untargeted metabolomics profiled 246 annotated metabolites in plasma at t0 and t60 min during the OGTT. Our results suggest that obesity and IR influence the switch from fatty acid (FA) to glucose oxidation in response to the OGTT. Obesity was associated with a blunted decline of acylcarnitines and fatty acid oxidation intermediates. In females, metabolites from the Fasted and Random-Fed OGTT were associated with HOMA-IR, including diacylglycerols, leucine/isoleucine, acylcarnitines, and phosphocholines. Our results indicate that at an early age, obesity and IR may influence the metabolome dynamics in response to a glucose challenge.

scholarly journals TNFα Dynamics During the Oral Glucose Tolerance Test Vary According to the Level of Insulin Resistance in Pregnant Women

2014 ◽  
Vol 99 (5) ◽  
pp. 1862-1869 ◽  
Author(s):  
Laetitia Guillemette ◽  
Marilyn Lacroix ◽  
Marie-Claude Battista ◽  
Myriam Doyon ◽  
Julie Moreau ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Pregnant Women ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance

Relationship between insulin resistance and puberty in children with increased cardiometabolic risk

2011 ◽  
Vol 152 (27) ◽  
pp. 1068-1074 ◽  
Author(s):  
Borbála Tobisch ◽  
László Blatniczky ◽  
László Barkai
Keyword(s):  
Insulin Resistance ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Cardiometabolic Risk ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Obese Children ◽  
T1 Stage

Epidemiologic data provide evidence that the frequency of obesity and cardiometabolic risk factors shows an increasing tendency in childhood. Insulin resistance plays a central role in the pathogenesis of cardiovascular and metabolic consequences of obesity. Transient decrease in the insulin sensitivity during puberty is a well-known physiological process; however, the feature of this phenomenon is not clear in obese children with increased cardiometabolic risk. Aim: The aim of the present study was to assess the effect of puberty on insulin resistance and metabolic parameters in obese children with and without increased cardiometabolic risk. Materials and methods: Anthropometric data, insulin levels during oral glucose tolerance test and lipid status were analyzed of 161 obese children aged 4-18 years. Σinsulin/Σglucose ratio was obtained during glucose load and HOMA index was used to assess insulin resistance. Children were sorted into prepubertal (T1), pubertal (T2-4) and postpubertal (T5) cohorts according to Tanner staging criteria and metabolic and insulin resistance parameters were evaluated. Increased cardiometabolic risk was defined as the presence of any two risk factors (elevated fasting plasma glucose, blood pressure, triglyceride or decreased HDL-cholesterol) in addition to obesity. Results: Out of 161 obese subjects, 43 (26.7%) had increased cardiometabolic risk. Decreased HDL-cholesterol and/or elevated triglyceride was observed in 101 (56.5%) cases. Impaired glucose tolerance and/or impaired fasting glucose was found in 23 (14.4%) cases. In subjects without increased cardiometabolic risk, the Σinsulin/Σglucose ratio in T1 stage was significantly lower than in T2-4 and T5 stages (p = 0.01). In children with increased cardiometabolic risk, the insulin/glucose ratio was similar in T1, T2-4 and T5 stages, however, it was significantly higher in T1 stage as compared to subjects without increased cardiometabolic risk (p = 0.04). In T2-4 and T5 stages, Σinsulin/Σglucose ratio did not differ between children with and without increased cardiometabolic risk. No difference was found in HOMA index between groups with and without increased cardiometabolic risk in T1 stage, however significantly higher levels were observed in subjects with increased cardiometabolic risk at T2-4 stages (p = 0.01), indicating the presence of fasting hyperinsulinemia in this cohort. Elevated HbA1c (≥6.0%) was found in 13 (16%) out of the 81 children investigated, of whom only two cases had abnormal oral glucose tolerance test. In cases having normal HbA1c, oral glucose tolerance test showed impaired glucose tolerance in 5 cases, impaired fasting glucose in 2 cases, both impaired glucose tolerance and impaired fasting glucose in 2 cases, and type 2 diabetes in 2 cases. Conclusion: Increased insulin resistance can be observed in obese children without increased cardiometabolic risk. In obese children with increased cardiometabolic risk, substantial insulin resistance occurs in prepuberty and it is present at similar level throughout puberty. Fasting insulin levels are elevated in obese subjects with increased cardiometabolic risk as compared to those without increased cardiometabolic risk. To reveal type 2 diabetes cases, HbA1c and oral glucose tolerance test results should be assessed parallel. Orv. Hetil., 2011, 152, 1068–1074.

Effect of vitamin D deficiency on the 75 g oral glucose tolerance test screening and insulin resistance

2019 ◽  
Vol 35 (6) ◽  
pp. 535-538 ◽  
Author(s):  
Erdem Sahin ◽  
Ilknur Col Madendag ◽  
Mefkure Eraslan Sahin ◽  
Yusuf Madendag ◽  
Gokhan Acmaz ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Vitamin D ◽  
Glucose Tolerance ◽  
Oral Glucose Tolerance Test ◽  
Vitamin D Deficiency ◽  
Glucose Tolerance Test ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Oral Glucose Tolerance
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