Active clinical trials for "Insulin Resistance"

Persons with spinal cord injury (SCI) are at an increased risk for metabolic disorders, including that of insulin resistance. As a result of neurological injury, they often have impaired mechanisms that regulate blood vessel function below the level of injury. Insulin, which facilitates the transport of glucose into muscle cells, is also capable of regulating skin blood flow, with insulin resistance reducing perfusion. Although beyond the scope of this proposal, the possibility exists that impaired microvascular skin blood flow responses due to insulin may further predispose to ischemia of the skin at pressure points of bony prominence. This perturbed cutaneous vascular response may place persons with SCI at risk for the development and poor healing of pressure ulcers due to microvascular dysfunction secondary to neurologic and metabolic disorders. Primary Aim: To determine the association between systemic insulin sensitivity and insulin-mediated vasodilatation below the neurological level of injury. We hypothesize that individuals with systemic insulin sensitivity compared to those with insulin resistance will have greater insulin-mediated vasodilatation and an associated proportional increase in cutaneous blood perfusion. Thus, intact and appropriate endothelial-mediated regulation by insulin will be operative despite sub-lesional neurological impairment in insulin sensitive individuals with SCI. However, because of the absence of the SNS-mediated insulin action on the microvasculature (i.e., insulin-mediated sympathetic withdrawal), it is being hypothesized that the vasodilatory response to iontophoresis with insulin in insulin sensitive subjects with SCI will be less than that observed in neurologically intact controls with insulin sensitivity. Secondary Aim: To compare peak microvascular perfusion responses to endothelial-dependent vasodilatation by iontophoresis with acetylcholine to insulin. We hypothesize that the peak blood perfusion responses to iontophoresis with insulin will be comparable in magnitude to that of acetylcholine in individuals with greater systemic insulin sensitivity. This will be in contrast to individuals with systemic insulin resistance who will demonstrate a diminished response to iontophoresis with insulin when compared to that of acetylcholine. Because of SNS impairment, the peak vasodilatory response observed to these interventions will be lower in the group with SCI.

The purpose of the study is to show if telemonitoring and automated feedback regarding glucose management, physical activity, blood pressure, and body weight improves treatment of patients with insulin dependent Type 2 Diabetes mellitus.

The purpose of this study is to determine if what you eat affets your insulin sensitivity when you lose a small amount of weight

The investigators hypothesise that a common A277G polymorphism of the liver fatty acid binding protein (L-FABP) gene, which leads to an amino acid exchange, may be associated with alterations of lipid-induced hepatic insulin resistance. In the present study the investigators will investigate potential differences in lipid-induced hepatic insulin resistance, and in the relation between glycogenolysis and gluconeogenesis, in healthy subjects with the A277G polymorphism vs. subjects carrying the wildtype.

A Prospective Double-Blinded, Placebo Controlled, Randomized Trial comparing a single dose of Vitamin D (Colecalciferol) 300.00UI to placebo on patients with insulin resistance. Primary Outcome: Blood glucose and homeostasis model assessment for insulin resistance (HOMA-R) after 90 days. Study hypothesis: Vitamin D treatment may improve insulin resistance and decrease glucose level, since there is an association between hypovitaminosis D and increased insulin resistance.

This study evaluates differences in brain function and cognitive performance in adolescents with type 2 diabetes (T2D) compared to non diabetic controls (both obese and lean) and correlates these changes with obesity, insulin resistance, and glycemic control in youth with T2D.

In the present study, the investigators will assess the impact of two different feeding patterns (continuous vs intermittent) on insulin sensitivity and muscle mass following bedrest.

This randomized controlled feeding trial aims to determine whether the consumption of different amounts and types of dairy products affects blood sugar regulation and cardiometabolic health in men and women with the metabolic syndrome.

This pilot clinical trial will test the hypotheses that sleep restriction (for 5 nights), in comparison to "normal sleep", will: Decrease peripheral insulin sensitivity and glucose tolerance, as measured by the hyperinsulinemic-euglycemic clamp and oral glucose tolerance test. Decrease hepatic insulin sensitivity, as assessed by stable isotope studies of endogenous glucose production, gluconeogenesis and glycogenolysis.

This is a pilot study to show that it is possible to identify the specific types of fats in blood, adipose tissue, and liver tissue. The study doctors hope to use the analysis of these fats to learn more about nonalcoholic fatty liver disease (NFLD). Nonalcoholic fatty liver disease is the accumulation of fat in the liver of people who have minimal alcohol exposure. Nonalcoholic Fatty Liver Disease is associated with obesity and insulin resistance, and predicts development of Type 2 Diabetes. The study doctors are interested in looking at the relationship between liver fat and insulin resistance.