View clinical trials related to Metabolic Syndrome.
Filter by:The overall goal of this study is to determine whether variations in the perilipin, and several other, genes would be a useful tool for physicians who are caring for morbidly obese patients to guide therapy. The main hypotheses to be tested is that sequence variations (polymorphisms) in the perilipin gene and several other obesity-related genes are associated with resistance to weight loss for obese individuals on energy restricted diets, potentially playing a role in the development of obesity related complications.
The purpose of this study was to determine whether patients with schizophrenia, schizoaffective disorder, or bipolar I disorder who also have metabolic syndrome have a larger decrease in fasting non-high density lipoprotein (non-HDL) cholesterol levels with aripiprazole than with their current atypical antipsychotic treatment (olanzapine, risperidone, or quetiapine).
Heart disease is the most common cause of death in the United States and it is commonly found in people with diabetes and high cholesterol. Inflammation is one mechanism by which diabetes and elevated cholesterol damage blood vessels. Inflammation can be increased by oxidative stress. This study will see if Alpha Lipoic acid, a potent antioxidant and over the counter product, reduces blood levels of markers of oxidative stress and inflammation when compared with placebo. Placebo is a substance that looks like the real product, but contains no active product.
Obese HIV-positive women with Metabolic Syndrome (HIV-MS) and obese HIV-negative women with Metabolic Syndrome will be studied before and after achieving moderate (6%-8%) diet-induced weight loss. The investigators hypothesize that health markers will improve in both groups but that the improvement will be blunted in the women with HIV-MS.
Glucagon-like peptide 1 (GLP-1) is an intestinal peptide hormone secreted in a nutrient-dependent manner that stimulates the pancreatic beta cells to secrete more insulin in response to the same amount of blood glucose. In patients with Type 2 diabetes, GLP-1 secretion is lower than normal, thus suggesting that the hormone may contribute to the pathogenesis of the disease. Whether infusion of GLP-1 affects endothelial function and glucose uptake in humans has never been investigated. In the current proposal, the investigators hypothesize that GLP-1 administration might ameliorate endothelial dysfunction in patients with metabolic syndrome. To test this hypothesis, the investigators will evaluate the acute effects of GLP-1 in the forearm circulation of patients with metabolic syndrome during local hyperinsulinemia by use of the forearm perfusion technique.
Thrombin is the most potent activator of platelets, and platelet activation is a hallmark of thrombosis. Coronary artery disease (CAD) is the major cause of mortality and morbidity in the United States and other industrialized countries, and thrombotic sequelae are the key cause of death in diabetes. The accumulation of thrombin at sites of vascular injury provides one of the major mechanisms of recruiting platelets into a hemostatic plug. Thrombin works by activation of the G protein-coupled protease activated receptors PAR1 and PAR4 on human platelets to initiate signaling cascades leading to increases in [Ca]i, secretion of autocrine activators, trafficking of adhesion molecules to the plasma membrane, and shape change, which all promote platelet aggregation. The thrombin receptors work in a progressive manner, with PAR1 activated at low thrombin concentrations, and PAR4 recruited at higher thrombin concentrations. As direct thrombin inhibitors become widely used in clinical practice, it is important to assess their effects on vascular function. Our hypothesis is that PAR1 and PAR4 do not signal through the same G protein pathways, and that PAR4 is not a strong platelet agonist. To investigate this hypothesis, the investigators will study the G protein pathways downstream of PAR4, and assess ex-vivo platelet responsiveness to thrombin, PAR1, and PAR4 agonist peptides, both in normal human subjects, and along the stages of pathology, from patients with stable angina as well as unstable angina who are undergoing angioplasty. Similarly, the investigators will examine platelet function in patients with metabolic syndrome as well as diabetes, along the continuum from insulin resistance to full-blown disease. These studies will provide deeper insight into the G protein pathways used by PARs. They will elucidate the contribution of PAR receptors to normal platelet function as well as the abnormal platelet activation in thrombotic states. The long term goal is to understand the implications for PAR receptors as therapeutic targets for anti-platelet therapies that may carry less bleeding risk.
Life for long-term bone marrow transplant patients is complicated by endocrine late effects including growth hormone (GH) deficiency, thyroid hormone deficiency and sex steroid deficiency. Recently, studies have also identified problems with metabolic syndrome in adult bone marrow transplant (BMT) survivors. Metabolic syndrome has been identified as a constellation of insulin resistance, truncal obesity and high lipid levels (dyslipidemia) and is associated with an increased risk of type 2 diabetes and cardiovascular disease. Thus the early identification of metabolic syndrome is important. To date, studies have not identified how young an age metabolic syndrome begins in BMT survivors. The investigators' study will consist of two aims: 1. Evaluation of children who have survived BMT for growth hormone deficiency, abnormal lipid metabolism, hypothyroidism and gonadal dysgenesis. The investigators will utilize growth hormone stimulation testing, sex steroid levels, an oral glucose tolerance test (OGTT) and fasting lipid profile to evaluate for concomitant endocrinopathy, prediabetes and impaired glucose tolerance in a cohort of BMT survivors. 2. Cross-sectional study of peripheral and hepatic insulin sensitivity in children surviving BMT using a hyperinsulinemic euglycemic clamp and the stable isotope 6,6 [2H2] glucose. These aims will provide pilot data to power the first definitive study of insulin resistance in childhood BMT survivors.
An educational intervention in the General Medicine Clinic aimed at both primary care providers (PCPs) and their patients with metabolic syndrome/pre-diabetes (MetSyn/PDM). Improving PCPs ability to detect and manage MetSyn/PDM, as measured by the increased incorporation of MetSyn/PDM into PCPs care plan, and increasing patients' awareness of healthy lifestyle behaviors results in positive patient health behaviors and outcomes.
The purpose of the study is to examine the effects of 2 commonly used diets, a Mediterranean monounsaturated fatty acid enriched (MUFA) or AHA polyunsaturated (PUFA) enriched diet combined with the VA Managing Overweight/Obesity for Veterans Everywhere (MOVE!) program so as to determine which one is superior in reducing cardiometabolic risk factors associated with Metabolic Syndrome. The risk factors considered include lipids and lipoproteins, inflammatory markers such as CRP and adiponectin, endothelium-dependent flow-mediated vasodilatation (FMD) and the postprandial lipid responses to a meal. Cardiometabolic risk factors will be determined by measuring several cardiovascular risk associated parameters including: Biochemical measurements of lipids and inflammatory markers, body composition and VO2max (Specific Objective 1, Descriptive). Postprandial response to a meal challenge and endothelial vasoreactivity (FMD) assessed by BART (Specific Objective 2, Physiological). Determination of the effects on postheparin lipases and transfer protein activity, visceral adipose tissue (VAT) and homeostasis model assessment-estimated insulin resistance (HOMA-IR) (Specific Objective 3, Mechanistic)
The purpose of the E-LITE Study is to evaluate the feasibility and potential effectiveness of two lifestyle interventions in a community based primary care setting. The study aims to assess how changes in diet, exercise, and behavioral self-management affect weight and related risk factors for adults at risk for diabetes and cardiovascular disease.