Active clinical trials for "Metabolic Syndrome"

The metabolic syndrome may be defined as the constellation of cardiovascular disease (CVD) risk factors that comprises obesity, type 2 diabetes, dyslipidemia, and hypertension. Lack of habitual physical activity and certain dietary patterns, including high-saturated fatty acids (SFA) intake, contribute to increase the risk of CVD, whereas the greatest risk reduction is related with monounsaturated fatty acids (MUFA), mainly from olive oil, and omega-3 polyunsaturated fatty acids (PUFA). Vitamin B3, as a major substrate for nicotinamide phosphoribosyltransferase (NAMPT), has also emerged as a nutritional intervention strategy for prevention of CVD. NAMPT has been shown to exert activities of central importance to cellular energetics and innate immunity. Within the cell, NAMPT is the rate-limiting step in a salvage pathway of nicotinamide adenine dinucleotide (NAD+) biosynthesis. By virtue of this role, it can regulate cellular levels of NAD+ and thereby NAD+-consuming enzymes. NAMPT is also released by a variety of cells, and elevated levels can be found in the systemic circulation of subjects with a range of inflammatory disorders. Recent evidences suggest that, primarily due to its high MUFA content, olive oil is useful as an optimal fat for the modulation of CVD risk factors in the postprandial state. In addition, NAMPT has been shown to correlate with triglycerides in the fasting plasma, and a potential regulatory role for fatty acids on NAMPT expression has been proposed. The global aim of the project is to assess whether olive oil (MUFA), compared to other dietary fatty acids (SFA and omega-3 PUFA) and in association with vitamin B3 could have benefits on NAMPT-related inflammation and atherosclerosis. We hope to provide important novel insights on the relationship among dietary fatty acids, NAD+ metabolism, and metabolic syndrome. This aim is expected to be achieved in one principal objective: To elucidate the influence of olive oil (MUFA), butter (SFA) or fish oil (omega-3 PUFA) meals supplemented by vitamin B3 on postprandial NAMPT modulation and its involvement on leukocyte inflammatory response in subjects with metabolic syndrome.

The number of long-term cancer survivors is growing. As a result, treatment-related morbidity - such as cardiovascular disease, metabolic syndrome, functional decline and fatigue - is impacting quality of life and impairing survival. Metabolic syndrome in the general population is currently treated with lifestyle advice to increase physical activity (PA) and reduce caloric intake. This approach is still underused as standard care for cancer survivors. The aim of this study is investigate whether a tailored PA program that starts early (during curative chemotherapy with cardiovascular toxic potential) is superior in terms of reducing long-term cancer-treatment-related metabolic syndrome and cardiovascular morbidity to a program that starts late (after completion of chemotherapy).

The objectives of this clinical trial are to evaluate the effectiveness of an iridoid enriched beverage containing noni and cornelian juices and olive leaf extract on advanced glycation end product levels.

The purpose of this study is to understand why Hispanics who are overweight have a higher incidence of fatty liver disease.

We want to investigate whether the food supplement resveratrol is able to counteract the detrimental effects of obesity.

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.

The purpose of this study is to better understand the link between obesity and diabetes or pre-diabetes.

The purpose of this study is to determine the variability in glycemic index determinations for individual foods and food combinations. The study will also evaluate the changes in insulin and free fatty acid levels, plasma lipid and lipoprotein profiles, C-reactive protein-a marker of inflammation and glycosylated hemoglobin- a marker of glucose metabolism during a five-hour period after eating the food or foods. Additionally, supplementary data on variation in oral sensation, habitual food intake, food preferences and genes mediating sensory perception and dietary behaviors (supported by a grant from the Tufts Ross Aging Initiative) will be related to the outcomes on the present study.

The metabolic syndrome is associated with hyperdynamic circulation and sympathetic activation. Recently, Bakker et al. (Atherosclerosis 2002) described the hypothesis that free fatty acids are responsible for this association. The investigators hypothesize that in patients with obesity and the metabolic syndrome, an increased intracellular concentration of long-chain fatty acyl (LCFA)-CoA (the intracellular equivalent of free fatty acids) induces an increase in adenosine. Adenosine receptor stimulation, in turn, induces vasodilation and sympathetic activation. The investigators aimed to assess this effect of free fatty acids on the adenosine system in healthy volunteers.

The Effect of Feedback on Physical Activity Surveillance using Wearable Device-Smartphone Application for Resolution of Metabolic Syndrome in Aged 60 or older; a 12-Week Randomized Control Study