Clinical Trials

The purpose of this study is to assess the effects of 1,25(OH)2D3 on insulin secretion by the pancreas and glucose utilization by skeletal muscle, as well as to determine the effects of 1,25(OH)2D3 on muscle strength in pre-diabetic subjects.

The purpose of this study is to determine if changes in fasting glucose and FFA concentrations alter 1st phase insulin secretion and proinsulin secretion in non-diabetic and pre-diabetic humans after determining the proinsulin volume of distribution, clearance rate and half-life in humans.

The purpose of this study is to determine if changes in fasting glucose and FFA concentrations alter 1st phase insulin secretion and proinsulin secretion in non-diabetic and pre-diabetic humans.
 

The purpose of this study is to determine if changes in fasting glucose and fasting free fatty acids (FFA) concentrations alter postprandial glucose metabolism in non-diabetic and pre-diabetic humans.

The purpose of this study is to understand the effects of a hormone called glucagon in glucose metabolism in people with pre-diabetes.

The purpose of this study is to test whether chronic metformin administration will improve longevity of the cell, improve its machinery by reducing aging-related biochemical parameters, and improve physical performance as measured by short physical performance battery test.

Assessment of glucose metabolism and liver fat after 12 week dietary intervention in pre diabetes subjects. Subjects will be randomized to either high fat (olive oil supplemented),high carb/high fiber (beans supplemented) and high carb/low fiber diets. Glucose metabolism will be assessed by labeled oral glucose tolerance test and liver fat by magnetic resonance spectroscopy pre randomization and at 8 and 12 week after starting dietary intervention.

The aim of the study is to investigate the effects of a 3-month resistance exercise program (in people aged 50 to 75) on muscle mass, body composition, muscle strength, brain function and cognition, muscle efficiency processing blood sugar, the body’s ability to build muscle, and fat cells.

Earlier research has shown that exercise has significant benefits in preventing certain diseases and conditions such as diabetes, dementia, heart disease, and more. We also know from other research that resistance exercise (lifting weights) and aerobic exercise (running, biking, walking), improve metabolism through separate ways on the molecular level, also called “molecular pathways.” With ...

The purpose of this study evaluates a subset of people with isolated Impaired Fasting Glucose with Normal Glucose Tolerance (i.e., IFG/NGT) believed to have normal β-cell function in response to a glucose challenge, suggesting that – at least in this subset of prediabetes – fasting glucose is regulated independently of glucose in the postprandial period. To some extent this is borne out by genetic association studies which have identified loci that affect fasting glucose but not glucose tolerance and vice-versa.