View clinical trials related to Glucose Intolerance.
Filter by:Hypothesis : The maximum body weight in lifetime is associated with the onset of development of type 2 diabetes.
Hypothesis: There is a high rate of glucose intolerance among Hong Kong Chinese. The investigators plan to screen Hong Kong Chinese from the community with oral glucose tolerance test (OGTT). The subjects will be referred from GP centers in the community and self-referred with public advertisement on this survey.
Hypothesis: A high cardiovascular risk is present in subjects with pre-diabetes in Hong Kong Chinese. The investigators plan to assess Chinese subjects in Hong Kong who have pre-diabetes (impaired fasting glucose, IFG; or impaired glucose tolerance, IGT) based on oral glucose tolerance test (OGTT) on their cardiovascular risk status such as obesity, hypertension and lipid profile.
The purpose of this study is to examine whether there is a causal relationship between insulin resistance and/or glucose intolerance in the development of a defect incretin effect.
The purpose of this study is to provide the necessary data and experience to design a larger, full scale clinical trial to determine if a certain medicine (repaglinide), which increases the amount of insulin secreted by the pancreas, can improve the nutritional status and pulmonary function of adolescents and young adults with cystic fibrosis and prediabetes by improving blood glucose control. The investigators are also trying to determine the relationship between systemic inflammatory factors and glucose impairment.
The major cause of premature death in renal transplant recipients is cardiovascular disease. Sitagliptin stimulates insulin secretion and inhibits glucagon release, two central mechanisms in PTDM by interaction with a hormone system (incretins) that just recently it has become possible to modulate by drugs. Sitagliptin therefore is an interesting additional drug for the treatment of posttransplant diabetes mellitus in transplanted patients. The primary objective of the present study is to investigate the effect of sitagliptin on insulin secretion in renal transplant recipients. Secondary objectives are to study the effect on insulin sensitivity, fasting blood glucose, endothelial function, CsA/Tac blood concentrations.
Subjects with impaired glucose tolerance will be randomized to either rosiglitazone or placebo for a 18 month period. The study will look at baseline, 12 month and 18 month data for exercise tolerance, coronary artery calcification and diabetes indicators.
The purpose of this study is to determine whether therapeutic intervention on impaired glucose tolerance in patients with coronary heart disease can decrease the incidence of new onset DM.
There is increasing evidence that inflammation plays a role in progression and destabilization of atherosclerotic plaque. FDG-PET can visualize activated metabolic activity of inflammatory cells. It is possible that FDG-PET can detect atherosclerotic plaque inflammation and that FDG-PET can monitor the effect of pioglitazone on plaque inflammation.
Diabetes and its associated complications affect more than 20 million Americans, and the prevalence of type 2 diabetes and impaired glucose tolerance rises dramatically with age such that 40% of Americans over age 60 are affected. In older adults, glucose metabolism may be affected by reduced skeletal muscle capillary supply, which limits insulin, glucose, and oxygen delivery to skeletal muscle. Reduced capillary supply to skeletal muscle is found in older individuals with impaired glucose tolerance and we hypothesize that this is due to reduced vascular growth factor expression, and chronic inflammation. Further, we hypothesize that reversal of a sedentary lifestyle through aerobic exercise training will increase insulin signaling and vascular growth factor expression, as well as decrease inflammation, to increase capillary supply to skeletal muscle, which contributes to improved glucose metabolism in older adults. This study will: 1) Determine the mechanisms underlying reduced skeletal muscle capillarization in older adults with impaired glucose tolerance; and 2) Determine the effect of aerobic exercise training-induced increases in skeletal muscle capillarization on glucose metabolism in older adults.