View clinical trials related to Obesity.
Filter by:The goal of this research is to determine how the peripheral immune system is altered by exercise and differences related to gender, pubertal status and health.
The proposed prospective study aims to determine whether interpretation of PSA levels in morbidly obese men require correction due to the obesity itself. If PSA levels are found to rise after weight loss, interpretation of PSA levels in morbidly obese men may be improved by upward correction of the PSA level. A 'correction factor' may be proposed for the interpretation of PSA levels in obese men, toward the clinical decision regarding indication for prostate biopsy.
The purpose of this study is to determine the concentration of omega-3 fatty acids in plasma, blood and abdominal fat before and after bariatric surgery to provide guidance for future studies.
Behavioral weight loss, the current treatment of choice for moderate obesity, achieves impressive short term results, however, weight regain following treatment is a major problem. Over 50% of participants in behavioral weight loss programs report difficulty with internal antecedents to unhealthy weight control behaviors and this difficulty is associated with weight regain following treatment. Current treatment approaches do not adequately address these antecedents. The aim of this series of studies is to develop, implement, and evaluate a behavioral weight loss program modified to provide participants with skills to deal effectively with affective and cognitive difficulties. The study targets men and women with BMI of 27-40 who self-report difficulty with emotional and/or cognitive antecedents to unhealthy weight control behaviors. The study will randomize 120 participants to receive 12 months of standard behavioral therapy for weight loss or standard behavioral treatment plus affective and cognitive skills training. The long-term goal of this research is to improve the weight loss maintenance outcomes of behavioral weight loss programs by addressing affective and cognitive antecedents to unhealthy weight control behaviors.
The investigators propose to determine esophageal Doppler goal-directed fluid requirements in lean, overweight, obese, and morbidly obese patients with the goal of developing a body mass index (BMI)-specific fluid replacement strategy. Specifically, th investigators will test the hypothesis that perioperative fluid requirements on a per-kg basis varies as a function of BMI. Individuals scheduled for elective, open abdominal surgeries, vaginal hysterectomies or genital prolapse repair will be eligible to participate
Examine clinical results of an interdisciplinary weight management program that includes medical evaluation, nutrition counseling, exercise, and behavioral interventions.
The purpose of this study is to determine how a decline in physical activity acutely leads to a decrease in insulin sensitivity in skeletal muscle. The hypothesis is that the loss of insulin sensitivity following physical inactivity is caused by a rapid reduction in skeletal muscle mitochondrial oxidative capacity.
The purpose of this study is to screen a pediatric population (ages 2-8) for genes associated with childhood obesity.
The purpose of this study is to assess the use of this Lap-Band system for the purpose of promoting weight loss in renal failure patients who do not qualify as transplant candidates because of excessive BMI's
This study will examine whether epigallocatechin gallate (EGCG), a major component of green tea, affects how the body responds to insulin in healthy and obese people. Insulin is not as effective in people who are overweight, have high blood pressure or diabetes. This condition is known as insulin resistance. Laboratory studies suggest that green tea or EGCG treatment lowers blood pressure, lowers blood sugar and increases blood flow. This study will see if EGCG improves insulin resistance or insulin's effects on blood flow in people with insulin resistance. Healthy normal weight or overweight people between 21 and 65 years of age may be eligible for this study. Participants are randomly assigned to take EGCG or a placebo ( inactive dummy pill ) in two 4-week treatment phases with a 2-week period of no study medication before each treatment phase. After the first 4-week treatment, patients on placebo are switched to EGCG and those on EGCG are switched to placebo. In addition to treatment, participants undergo the following procedures during the study period: - Screening, including medical history, physical examination and blood and urine tests, and finger-stick blood sugar measurement for patients with diabetes - Complete a dietary and physical activity questionnaire and consult with a dietitian - Blood and urine tests - At-home and clinic blood pressure monitoring - Glucose clamp test to measure how the body responds to insulin. This test is done three times during the study. A needle is placed in a vein in each of the subject's arms, one for sampling blood and the other for infusing insulin, glucose and potassium. Glucose and insulin levels, electrolytes, lipids, fatty acids, cytokines and epicatechin are measured. - Forearm blood flow measurement with microbubbles and ultrasound. Before beginning the glucose clamp test, a test of how well the blood vessels relax is done. A device that measures the size of the artery in the upper arm is placed above the elbow. Blood flow in the muscle of the forearm is measured by ultrasound using a small infusion through a vein of microbubble contrast agent consisting of gas-filled bubbles the size of red blood cells. The contrast agent is infused over a 7- to 9-minute period at the beginning of the glucose clamp test and again 2 hours after the beginning of the test.