View clinical trials related to Obesity.
Filter by:Obesity is strongly associated with risk of cardiovascular disease (CVD). Data increasingly suggest that visceral adipose tissue (VAT) accumulation -- or increased abdominal fat -- is particularly deleterious to cardiovascular health, but further study is needed to test this idea. Increased abdominal fat may also be associated with lower secretion of a hormone called growth hormone (GH), which helps the body burn fat. The current study aims to carefully characterize relationships between abdominal fat and CVD. In addition, by using a medication called growth hormone releasing hormone, which is a strategy to reduce abdominal fat, the investigators will test the hypothesis that abdominal fat contributes uniquely to increased arterial inflammation. In the first part of this study, the investigators will investigate both lean (healthy weight) individuals and individuals with increased abdominal fat. The investigators will study their body composition, cardiovascular risk measures, insulin sensitivity, and growth hormone dynamics, with the hypothesis that abdominal fat, independent of general obesity, will be strongly associated with arterial wall thickening and atherosclerotic inflammation. The investigators will assess arterial wall thickness, plaque morphology, and atherosclerotic inflammation, and the investigators will determine associations between these variables and regional fat accumulation, with particular attention to abdominal fat. The second, treatment part of the study will be only for individuals with increased abdominal fat who are found to have low growth hormone secretion. In that part of the study, the investigators will test the effects of a growth hormone releasing hormone (GHRH) analogue to reduce abdominal fat and, consequently, reduce arterial inflammation. The investigators hypothesize that abdominal fat reduction, independent of changes in growth hormone, will reduce arterial inflammation and arterial wall thickness.
This study aims to determine that this new technology, nasopharyngoendoscopy, is just as effective in diagnosing problems as the current gold standard.
The investigators hypothesize that exercise in postmenopausal breast cancer survivors will result in an increase in the plasma concentrations of angiostatic factors and a decrease in the plasma concentrations of angiogenic factors. Exercise is expected to result in a circulating angiostatic phenotype that inhibits adipose tissue mass, growth of breast cancer tumor, growth of microscopic residual disease after breast cancer resection, decreases rates of local-regional recurrence, decreases rates of distant recurrence, and increases survival.
This research is examining whether an 8-week online nutritional programming based on a Mediterranean diet can achieve meaningful increase intake of a Mediterranean based diet and improvements in measures of body weight and laboratory measures of oxidative stress, a risk marker for cardiovascular disease. This study will also examine whether weekly short support and communication from a medical assistant (MA) in a primary care setting in addition to the online program will result in better program adherence and have a positive impact on health.
The purpose of this prospective observational study is to generate further insight into the numerous metabolic adaptations associated with sleeve gastrectomy surgery in obese subjects by profiled serum metabolites before and after the surgery and integrated metabolite changes with clinical data.
This study examines whether a gradual increase of dose improves the gastrointestinal tolerability (nausea and vomiting) of PF05212389
The study concerns a survey of attitudes of the public on issues around personal responsibility for health and the use of financial incentives to promote health in the U.S. and Germany. All data are gathered anonymously through online platforms. Two separate professional panel providers are used for access to members of the public. All participants are people who have voluntarily joined a survey panel in the past through an informed consent process and currently serve as panel members.
This study will test whether longer-term suppression of adrenal function can ameliorate androgen (male hormone) overproduction in overweight early pubertal girls with androgen excess. The investigators hypothesize that suppression of nighttime adrenocorticotropin hormone (ACTH) production by 12 weeks of evening oral hydrocortisone administration will improve androgen levels in girls with adrenal androgen overproduction. Specifically, this intervention will improve androgen levels after adrenal stimulation testing with ACTH or ovarian stimulation testing with recombinant human chorionic gonadotropin (rhCG).
Short term hydrocortisone to test whether improves excess androgen production from adrenal gland and ovaries
This study will test whether short-term suppression of ovarian function can ameliorate androgen (male hormone) overproduction in overweight girls with androgen excess. The investigators hypothesize that one dose of depot leuprolide agonist administration will improve androgen levels in girls with ovarian androgen overproduction. Specifically, this intervention will improve androgen levels after ovarian stimulation testing with recombinant human chorionic gonadotropin (rhCG).