scholarly journals Reduction in Global Myocardial Glucose Metabolism in Subjects With 1-Hour Postload Hyperglycemia and Impaired Glucose Tolerance

Diabetes Care ◽  
2020 ◽  
Vol 43 (3) ◽  
pp. 669-676 ◽  
Author(s):  
Elena Succurro ◽  
Elisabetta Pedace ◽  
Francesco Andreozzi ◽  
Annalisa Papa ◽  
Patrizia Vizza ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Myocardial Glucose Metabolism

scholarly journals Rosiglitazone Improves Glucose Metabolism in Obese Adolescents With Impaired Glucose Tolerance: A Pilot Study

Obesity ◽  
2011 ◽  
Vol 19 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Anna M.G. Cali ◽  
Bridget M. Pierpont ◽  
Sara E. Taksali ◽  
Karin Allen ◽  
Melissa M. Shaw ◽  
...  
Keyword(s):  
Pilot Study ◽  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Obese Adolescents

scholarly journals Safety, feasibility and efficacy of metformin and sitagliptin in patients with a TIA or minor ischaemic stroke and impaired glucose tolerance

BMJ Open ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. e046113
Author(s):  
Elizabeth Osei ◽  
Adrienne Zandbergen ◽  
Paul J A M Brouwers ◽  
Laus J M M Mulder ◽  
Peter Koudstaal ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Ischaemic Stroke ◽  
Impaired Glucose Tolerance ◽  
Outcome Measures ◽  
Fasting Glucose ◽  
Phase Iii ◽  
Secondary Outcome ◽  
Control Group ◽  
Hba1c Levels

IntroductionImpaired glucose tolerance (IGT) is highly prevalent after stroke and is associated with recurrent stroke and unfavourable outcome.ObjectivesWe aimed to assess the feasibility, safety and effects on glucose metabolism of metformin or sitagliptin in patients with transient ischaemic attack (TIA) or minor ischaemic stroke and IGT.DesignWe performed a multicentre, randomised, controlled, open-label phase II trial with blinded outcome assessment.InterventionsPatients were randomised in a 2:1:1 ratio to ‘no medication’, sitagliptin or metformin.Primary and secondary outcome measuresPrimary outcome measures were baseline adjusted differences of 2-hour postload glucose; secondary outcome measures fasting glucose, glycosylated haemoglobin 1c (HbA1c) levels, tolerability and safety of metformin and sitagliptin at 6 months. Patients on metformin or sitagliptin were contacted by telephone for recording of possible adverse events and to support continuation of treatment at 2 weeks, 6 weeks and 3 months after inclusion. These events were not analysed as outcome measures.ResultsFifty-three patients were randomised to control group, 26 to metformin and 22 to sitagliptin. We found no significant differences in 2-hour postload glucose between patients on antidiabetic drugs and controls ((−0.04 mmol/L (95% CI −0.53 to 0.45)). Patients in the treatment arms had reduced fasting glucose: ((−0.21 mmol/L (95% CI −0.36 to −0.06)) and HbA1c levels ((−1.16 mmol/mol (95% CI −1.84 to −0.49)). Thirteen patients (50%) on metformin and 7 (32%) on sitagliptin experienced side effects. Sixteen patients (61%) in the metformin and 13 (59%) in the sitagliptin group were still on treatment after 6 months.ConclusionsMetformin and sitagliptin were both effective in reducing fasting glucose and HbA1c levels in patients with recent TIA or minor ischaemic stroke and IGT. However, the reduction of glucose levels and sample size was relatively small. The clinical relevance, therefore, needs to be tempered. A phase III trial is needed to investigate whether medical treatment, compared with lifestyle intervention or a combination of both, not only improves glucose metabolism in IGT, but also leads to reduction of recurrent TIA or ischaemic stroke in these patients.Trial registration numberNL3048.

Exercise training normalizes glucose metabolism in a rat model of impaired glucose tolerance

Metabolism ◽  
1991 ◽  
Vol 40 (5) ◽  
pp. 455-464 ◽  
Author(s):  
Laurie J. Goodyear ◽  
Michael F. Hirshman ◽  
Elizabeth D. Horton ◽  
Sonja M. Knutson ◽  
Lawrence J. Wardzala ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Exercise Training ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Rat Model

Status of Glucose Metabolism and the Factors Affecting It, in Children with Thalassemia Major.

Blood ◽  
2005 ◽  
Vol 106 (11) ◽  
pp. 3848-3848
Author(s):  
Anupam Sachdeva ◽  
Satya Prakash Yadav ◽  
Subash C. Arya ◽  
Virender K. Khanna ◽  
Archana D. Arya
Keyword(s):  
Diabetes Mellitus ◽  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Glucose Tolerance Test ◽  
Age Of Onset ◽  
Thalassemia Major ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Normal Glucose

Abstract Abnormalities of the glucose metabolism are well documented in patients with Thalassemia Major who are frequently transfused and receiving therapy for chelation, due to excess iron deposition in the pancreas. The incidence of abnormalities in the glucose metabolism increase with age, with peak incidence between 16–20 years. The Indian (Asian) population is genetically predisposed to developing type 2 diabetes mellitus which is an additional risk factor for our Thalassemic population. Chelation is suboptimal in most of the patients due to economic reasons and ignorance. Impaired glucose tolerance (IGT) usually precedes the development of frank diabetes mellitus and intensive chelation in those with impaired glucose tolerance test may delay/prevent the onset of diabetes mellitus. Hence it is important to know the glyco-metabolic status of these children. At our Thalassemia endocrinology clinic, glucose tolerance test (GTT) is performed routinely in all subjects with Thalassemia major who have not already developed diabetes to identify the “at risk” population.GTT is performed by drawing a baseline fasting sample for blood glucose, oral glucose was given in a dose of 1.75mg/kg upto a maximum of 75 gms. Blood glucose level is measured 2 hours after oral glucose. According to the WHO criteria, Fasting plasma glucose between 110–126mg/dl is classified as impaired fasting and above 126mg/dl as diabetes. 2-hour plasma glucose value between 140–200mg/dl is classified as impaired glucose tolerance and above 200 mg/dl as diabetes. The purpose of this study was to analyze the status of the glucose metabolism of children and young adults with Thalassemia major who were attending our Thalassemia endocrinology clinic and to compare the factors affecting subjects with an abnormal glucose metabolism with those who have a normal glucose metabolism. The parameters compared were: effect of mean S. ferritin levels, age of onset of chelation and genetic predisposition. Retrospective analysis of our case records was done to determine the prevalence of diabetes and impaired glucose tolerance in children and young adults between 13 and 25 years of age. Of the 33 subjects evaluated, 16 out of 33 (48.5%) subjects had an abnormality of the glucose metabolism. 14/33 subjects (42.4%) had developed diabetes mellitus and 2 had an impaired GTT. Of the 16 affected subjects 9 were males and 7 were females (M:F = 1.28:1). The mean serum ferritin for this group was 5464ng/ml, 5503ng/ml for the diabetic group and 5425 for those with impaired GTT. (Range 2523–10904ng/ml). History of diabetes in a first or second degree relative was positive in 9 subjects(56.25%), negative in 2 and unknown in 5 subjects. Average age of onset of chelation was 8 years in this group. Oral glucose tolerance test was normal in 17/33(51.5%) subjects of which 10 were males and 7 were females (1.42:1). Average serum ferritin was 4747.4ng/ml in the group with a normal glucose tolerance. (1600–8294ng/ml). Family history of diabetes in a first or second degree relative was positive in 8 subjects(47%), negative in 4 and unknown in 5 subjects. Average age of onset of chelation was 6.5 years in the group with normal glucose metabolism. In conclusion of the 33 subjects evaluated, 48.5% had an abnormal glucose metabolism.

Impaired glucose tolerance and diabetes in obesity: A 6-year follow-up study of glucose metabolism

Metabolism ◽  
1990 ◽  
Vol 39 (10) ◽  
pp. 1068-1075 ◽  
Author(s):  
D. Jallut ◽  
A. Golay ◽  
R. Munger ◽  
P. Frascarolo ◽  
Y. Schutz ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Follow Up Study

scholarly journals A Glucose-Only Model to Extract Physiological Information from Postprandial Glucose Profiles in Subjects with Normal Glucose Tolerance

2021 ◽  
pp. 193229682110269
Author(s):  
Manuel M. Eichenlaub ◽  
Natasha A. Khovanova ◽  
Mary C. Gannon ◽  
Frank Q. Nuttall ◽  
John G. Hattersley
Keyword(s):  
Parameter Estimation ◽  
Insulin Sensitivity ◽  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Postprandial Glucose ◽  
Normal Glucose Tolerance ◽  
Physiological Information ◽  
Normal Glucose ◽  
Glucose Dynamics

Background: Current mathematical models of postprandial glucose metabolism in people with normal and impaired glucose tolerance rely on insulin measurements and are therefore not applicable in clinical practice. This research aims to develop a model that only requires glucose data for parameter estimation while also providing useful information on insulin sensitivity, insulin dynamics and the meal-related glucose appearance (GA). Methods: The proposed glucose-only model (GOM) is based on the oral minimal model (OMM) of glucose dynamics and substitutes the insulin dynamics with a novel function dependant on glucose levels and GA. A Bayesian method and glucose data from 22 subjects with normal glucose tolerance are utilised for parameter estimation. To validate the results of the GOM, a comparison to the results of the OMM, obtained by using glucose and insulin data from the same subjects is carried out. Results: The proposed GOM describes the glucose dynamics with comparable precision to the OMM with an RMSE of 5.1 ± 2.3 mg/dL and 5.3 ± 2.4 mg/dL, respectively and contains a parameter that is significantly correlated to the insulin sensitivity estimated by the OMM ( r = 0.7) Furthermore, the dynamic properties of the time profiles of GA and insulin dynamics inferred by the GOM show high similarity to the corresponding results of the OMM. Conclusions: The proposed GOM can be used to extract useful physiological information on glucose metabolism in subjects with normal glucose tolerance. The model can be further developed for clinical applications to patients with impaired glucose tolerance under the use of continuous glucose monitoring data.

scholarly journals SAT-004 Prevalence of Abnormalities of Glucose Metabolism in Teenage Indian Girls with PCOS

2020 ◽  
Vol 4 (Supplement_1) ◽  
Author(s):  
Vipan Talwar
Keyword(s):  
Diabetes Mellitus ◽  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Adolescent Girls ◽  
Fasting Glucose ◽  
Oral Glucose ◽  
Oral Glucose Tolerance ◽  
Abnormal Glucose Metabolism

Abstract Background:Polycystic ovary syndrome (PCOS) is one of the common endocrine disorders affecting young women and has been associated with an increased risk of impaired glucose tolerance and type 2 diabetes mellitus. However, there are very few studies on glucose abnormalities in Indian adolescent girls with PCOS. This study was conducted to determine the prevalence of abnormal glucose metabolism in this patient population. Method: Study group comprised of 106 young females aged 13–18 years. None of them were on metformin at the time of initial visit. Clinical examination along with Anthropometric evaluation was done and along with routine hormonal assessment they underwent a standard 75-g oral glucose tolerance test (OGTT). American Diabetes Association (ADA) criteria were used for diagnosis of diabetes (2 hr value>200mg/dl), Impaired glucose tolerance (2 hour value > 140 -199 mg/dl) and Impaired fasting glucose (blood glucose level of 100–125 mg/dl) Results:Out of 106 girls with PCOS diagnosis;1 girl met criteria for diagnosis of type 2 diabetes mellitus (0.9%).15 had impaired glucose tolerance (14.1%). In addition, 2 girls with impaired glucose tolerance were also noted to have impaired fasting glucose (1.9%).Abnormalities of glucose metabolism had significant correlation with BMI(p-0.02),Waist circumference (p-0.01) and testosterone levels (p-0.02). Conclusions:In our series of adolescent PCOS subjects, we report the prevalence of abnormal glucose metabolism to be 14.1% which is quite significant. Based on our results, we recommend that all adolescent girls with a diagnosis of PCOS should undergo formal oral glucose tolerance testing. Further studies are necessary in this field, so as to make guidelines regarding the timing and frequency of this testing, as well as its utility in the clinical management of these girls.

Serum 25-Hydroxyvitamin D Levels in Subjects with Reduced Glucose Tolerance and Type 2 Diabetes - The Tromsø OGTT-Study

2011 ◽  
Vol 81 (5) ◽  
pp. 317-327 ◽  
Author(s):  
Moira S. Hutchinson ◽  
Yngve Figenschau ◽  
Bjørg Almås ◽  
Inger Njølstad ◽  
Rolf Jorde
Keyword(s):  
Insulin Resistance ◽  
Type 2 Diabetes ◽  
Vitamin D ◽  
Glucose Metabolism ◽  
Glucose Tolerance ◽  
Impaired Glucose Tolerance ◽  
Fasting Glucose ◽  
Hydroxyvitamin D ◽  
25 Hydroxyvitamin D

The relationships between vitamin D concentrations, hyperglycemia, and insulin resistance remain uncertain. During 2008 - 2010, an oral glucose tolerance test was performed in 3520 subjects from Tromsø, Norway. Serum 25-hydroxyvitamin D [25(OH)D] was measured in 1193 subjects with normal glucose tolerance, in 304 with isolated impaired fasting glucose, in 254 with isolated impaired glucose tolerance, in 139 with a combination of the two, and in 194 subjects with type 2 diabetes. Serum 25(OH)D did not differ between subjects with isolated impaired fasting glucose or impaired glucose tolerance, but was lower in all groups of deranged glucose metabolism as compared with normal subjects. These differences could not be explained by differences in intakes of vitamin D from cod liver oil or other supplements and remained statistically significant after adjustment for gender, age, body mass index, physical activity score, and month of examination. When the cohort was divided according to serum 25(OH)D quartiles, there was an improvement in all measures of glucose metabolism (fasting and 2-hour plasma glucose, serum insulin, HbA1c) and estimates of insulin resistance (QUICKI , HOMA-IR, ISI0.120) with increasing serum 25(OH)D quartile. However, interventional studies are needed to prove a causal relationship between vitamin D and glucose metabolism.

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