Active clinical trials for "Weight Loss"

The goal of this observational study is to assess the efficacy of Realize My Success (RMS),a website that allows patients and providers to maintain contact via the website. We will compare RMS users on a number of different variables with the goal of identifying which variables are associated with optimal outcomes (larger weight losses) at one year (and potentially beyond). The study has two primary objectives. The first is to assess changes in body weight at postoperative year 1 in frequent v. infrequent RMS users. We predict that frequent users will achieve significantly greater reductions in weight at 6 and 12 months (and beyond) than infrequent users. The second objective is to assess changes in body weight at postoperative year 1 in persons who use different features of the RMS site. We hypothesize that persons who, on a regular basis, record their food intake, track their physical activity and make specific behavioral goals will experience significantly greater reductions in weight beginning 6 months after surgery as compared to those who do not use these features of the RMS site.

This study will involve secondary data analysis for a study done by Wylie-Rosett et al. in 2001 that evaluated the costs and effects of incremental components of a weight-loss program. Data analysis will involve cross-sectional and predictive analyses and may include: regression analyses to determine predictors of weight loss and cardiovascular risk, correlations between weight reduction strategies and biological indices, and interactions between biomarkers of inflammation and traditional cardiovascular risk factors. This data will also be available for economic modeling.

The objective of this study is to investigate if weight loss, in particular due to adipose tissue loss, in obese patients will reverse the obesity-related reduction of iron absorption, and if this is due to a decrease in hepcidin concentrations. Additionally, the investigators will investigate changes in iron incorporation into erythrocytes due to a reduction of iron sequestration by the adipose tissue and reticuloendothelial system. The investigators expect that by decreasing adiposity, circulating hepcidin levels will decrease, iron absorption and incorporation into erythrocytes will increase and as a result iron status will be improved.

The purpose of the study is to determine the effect of three weight loss surgeries compared to a low calorie diet with regard to energy expenditure, body composition, insulin sensitivity, and the response of gastrointestinal peptides to a standard meal. Baseline assessments will be conducted in all four groups and changes will be compared six and fifty-two weeks post-operatively.

Obesity is a national epidemic with multiple causes and complex solutions. Research in both animals and humans has suggested that the inclusion of dairy foods into a moderate calorie restricted diet can increase weight loss and fat loss. Our proposed project extends these prior findings by determining, for the first time, how inclusion of dairy in a calorie-restricted diet changes the amount of visceral adiposity in overweight and obese subjects. The investigators also propose unique studies to evaluate the potential mechanism(s) by which dairy promotes weight and fat loss during dieting, through an examination of adipocyte size, gene expression, and inflammatory markers. The hypotheses under investigation are (1) that inclusion of dairy foods in a modest energy restricted diet will significantly increase body fat loss compared to a control diet; (2) that dairy products in a modest energy restricted diet will result in greater fat loss from intra-abdominal adipose tissue compared to the control, 3) components of dairy products up- or down-regulate the secretion of metabolically-relevant hormones during the postprandial and inter-meal periods, 4) dairy products will promote satiety and/or satiation, 5) dairy foods reduce adipocyte differentiation and/or enhance adipocyte apoptosis, leading to concomitant white adipose tissue (WAT) expression changes for genes playing a role in these processes, 6) dairy foods will reduce adipocyte lipid storage and enhance pathways associated with thermogenesis and mitochondrial function in WAT, as reflected in gene expression changes and reduced adipocyte size, and 7) dairy foods included in a modest energy restricted diet will decrease inflammation in WAT and other tissues, thus decreasing circulating cytokines, increasing zinc status, decreasing expression of inflammatory markers in WAT, and reducing WAT macrophage infiltration.

The efficacy of peer counseling for weight loss maintenance is being tested in obese and overweight African American breast cancer survivors.

This study is designed to determine if a postnatal lifestyle intervention will lead to weight reduction over a 12 month period post-delivery in women who have been diagnosed with gestational diabetes mellitus and who have a BMI greater that 25 compared to women who receive routine care.

The purpose of this study is to determine if post-exercise protein supplementation can rescue the anabolic response of muscle and bone to resistance exercise during caloric restriction.

The development of bariatric surgery, its effectiveness and the reduction of complications are at the origin of massive weight loss, the corollary of which has been a clear increase in the demands of treatment of sequelae of weight loss.

This is a retrospective, descriptive study that involves de-identified data consisting of weight changes, pertinent vital signs and laboratory values influenced by body weight, and healthcare utilization of patients prescribed lorcaserin at The Center for Weight Management at the Scripps Clinic in San Diego, CA.