View clinical trials related to Overweight.
Filter by:The purpose of this study is to conduct a randomized controlled trial that examines how a family based, community centered intervention effects early childhood BMI trajectories.
Blacks are at increased risk for obesity, type 2 diabetes mellitus and cardiovascular disease. A common pathogenetic link among these entities is insulin resistance/hyperinsulinemia. The specific aims of this project are: 1) to compare skeletal muscle lipid content (SMLC) in black vs white children by computed tomography (CT) scan of the mid-thigh, and assess the relationship to in vivo insulin sensitivity; 2) to test the hypothesis that free fatty acid (FFA) - induced insulin resistance is associated with larger increases in intramyocellular lipid (IMCL) in black vs white adolescents; 3) to examine if β-cell insulin secretion in prepubertal black children is more sensitive to the stimulatory effect of FFA than in whites; and 4) to test if the β-cell in black obese adolescents is more susceptible to the lipotoxic effect of FFA compared with whites. The methods to be used are: the well- established CT method as well as Magnetic Resonance Spectroscopy (1H-MRS) to assess SMLC and IMCL; intralipid infusion to elevate circulating FFA levels; the hyperinsulinemic-euglycemic clamp with stable isotopes and indirect calorimetry to measure insulin sensitivity and substrate turnover; the hyperglycemic clamp to assess insulin secretion; DEXA and whole body MRI for body composition assessments.
The goal of this behavioral research study is to learn if an internet or phone based exercise and weight management program can help cancer survivors to lose weight and change their eating and exercise behavior.
This project will evaluate an Internet delivery strategy to address weight loss and maintenance among rural midlife and older women.
The objective of this clinical study was to assess the safety, tolerability, efficacy (effects on appetite scores, food intake) and plasma kinetics of Hoodia gordonii purified extract (H.g.PE), when consumed twice-daily for 2 or 15-days.
Foundations for Health is a 12-week behavioral weight loss interventions primarily conducted via the internet aimed at helping overweight and obese young adults (ages 18-30) lose weight by increasing physical activity, decreasing the energy density of the diet, and increasing consumption of low energy dense self-made meals by providing culinary training skills.
The effect of Non-Exercise Activity Thermogenesis (NEAT) or inactivity on insulin sensitivity and lipid metabolism is unclear. Research recently published shows that activities associated with everyday activities, summarized as NEAT, such as walking and standing, have a much greater role in energy expenditure than exercise. Therefore, the objective of the present study is to evaluate the effect of 4 days of inactivity (mainly sitting), 4 days of everyday activities (sitting, walking and standing), and 4 days of inactivity and exercise (sitting and biking) on glucose metabolism and insulin sensitivity using an oral glucose tolerance test, and on lipid metabolism in sedentary, overweight people. The investigators hypothesize that: 1. 4 days of everyday activities (NEAT) will cause an increased glucose tolerance and increased insulin sensitivity compared to 4 days of inactivity in sedentary, overweight people. 2. 4 days of exercise will improve glucose tolerance and insulin sensitivity more than 4 days of NEAT with equal energy expenditure, in sedentary, overweight people. 3. Fasting triglyceride will have the same course as glucose, mentioned in 1. and 2.
The proposal of this study is to compare the effectiveness of two worksite weight management programs at Duke: Steps to Health (STH) ('usual standard of care') and the more extensive Steps to Health Plus! (STH+). We have added an additional follow-up, by invitation only, for participants in the study who agreed to be contacted for future research.
Aim. To assess the effect of interleukin 1β (IL-1β) and tumor necrosis factor α (TNFα) inhibition with diacerein administration on insulin secretion and metabolic control of drug-naïve patients with type 2 diabetes mellitus (T2DM) and overweight or obesity. Hypothesis. Diacerein administration improves insulin secretion and metabolic control of drug-naïve patients with type 2 diabetes mellitus (T2DM) and overweight or obesity. Materials and methods. Design: Randomized, double-blind, placebo-controlled clinical trial. Population: 40 drug-naïve adult patients with T2DM and overweight or obesity. Measurements: A metabolic profile including IL-1β, TNFα, interleukin 6, and fasting insulin levels, as well as, hyperglycemic-hyperinsulinemic clamp technique; to assess the phases of insulin secretion and insulin sensitivity. Intervention for 2 mo: diacerein (50 mg once daily) for the first 15 days and twice daily for 45 additional days or placebo. Statistical analyses: Wilcoxon signed rank and Mann-Whitney U test.
Whole grains (WG) contain numerous physiologically bioactive compounds, a key group being polyphenolic compounds such as ferulic acid (FA). These whole grain polyphenolic compounds have been shown to have potent antioxidant activity. This study will evaluate bioavailability of WG bioactive compounds and their physiological impact on health outcomes, mainly related to inflammatory, oxidative and hormonal status, in overweight subjects.