Active clinical trials for "Obesity"

There is a link between activation of the immune response inducing chronic inflammation and both obesity and type 2 diabetes. To date, however, the cause(s) of this inflammation, the mechanisms of the inflammatory cascade and the type of cells involved are not completely known. The aim of our project is to study the principal cell types involved in the immune response from a quantitative and functional point of view in obese diabetic patients versus obese non-diabetic patients and healthy subjects who are neither diabetic nor obese. Despite possible inter-individual heterogeneity of immune cells, the fact that this work will be carried out by an accredited team with considerable expertise in the study of almost all the different types of immune cells will probably make it possible to know whether cell dysfunction and inflammation are associated with obesity or rather linked to insulin resistance. This study will be completed later by a second study on cell infiltration in adipose tissues in the 3 groups defined above. Better understanding of the physiopathology and especially the mechanisms and type of cells involved in obesity-related inflammation could quickly lead to the development of appropriate therapies that could act specifically on the cells involved and thus preclude the onset of complications.

This study is designed to determine whether a reduction in hormones (such as occurs during menopause) causes a decrease in calories burned during physical activity. This study will also determine whether a reduction in hormones decreases calories burned while sleeping, resting, and eating and whether an exercise intervention can prevent this.

Bariatric surgery can lead to improvement or even resolution of type 2 diabetes Mellitus (T2DM) with the spectrum of responses depending also on operation procedures. However, many mechanisms of metabolic action of different surgical techniques still are unclear. The aim of this study is to provide a better understanding of the effects of three types of bariatric surgery (lap banding, gastric bypass and sleeve gastrectomy) on beta-cell function and incretin secretion. A mixed meal tolerance (MMT) test will be performed before and 1 and 12 months after surgery to assess beta cell adequacy and glucagon-like-peptide-1 (GLP1)/glucose-dependent insulinotropic polypeptide (GIP) bioavailability.

The purpose of this study is to investigate whether overweight but not obese pregnant African women having unlimited access to a health education-information technology (IT) based intervention package gain weight within the acceptable range of 8-12 kg during the pregnancy period. Therefore, we hypothesize that unlimited access to health education via an IT-based intervention package has the potential to reduce the onset of obesity in African pregnant women. To date (Aug 2015), 95% of patients have been recruited, 1320 potential subjects have been screened and 150 enrolled into the study

Coordinated project whose objectives are: a) to test the effectiveness of a promotion of physical activity intervention (MOVI-KIDS) on preventing obesity; and b) to improve the academic performance in both children with and without attention deficit hyperactivity disorder (ADHD)

Regular maternal physical activity leads to the delivery of lighter, leaner infants. Higher birth weights and childhood obesity are both strong predictors for adult obesity, suggesting that the impact of maternal physical activity on the future health of a child is substantial. However, the mechanisms underlying the relationships between maternal physical activity and improved infant outcomes are unclear. Thus, the purpose of this project is to measure two potential contributing factors: maternal fat metabolism and maternal oxidative stress profiles. The investigators believe that maternal physical activity leads to beneficial alterations in maternal fat metabolism and oxidative stress profiles. Further, the investigators believe that both maternal fat metabolism and oxidative stress levels are related to infant outcomes such as obesity and insulin resistance. Therefore, exercise will improve maternal metabolic factors that can lead to improvements in infant outcomes. The investigators will compare these factors between obese inactive pregnant women and obese active pregnant women. This study design will allow us not only to determine the effect of physical activity on maternal and neonatal pregnancy outcomes, but also to establish whether obesity or physical inactivity should be a primary area of focus when prescribing pregnancy interventions in clinical practice.

ANGPTL3 and ANGPTL8 are emerging molecules involving lipid metabolism. In previous in vivo study using mice, ANGPTL8 regulated the activation of ANGPTL3 which was known to inhibit lipoprotein lipase activity and stimulate lipolysis of adipose tissue. Besides, glypican 4 was identified as a novel adipokine modulating adipocyte differentiation. Thus, the investigators postulated that different serum concentrations of ANGPTL3, ANGPTL8 and glypican 4 might affect progression of obesity in children. The investigators measure these molecules in Korean children, and investigate the association between these molecules and development of obesity.

The aim of the study is to evaluate the effect of obesity on periodontally healthy or diseased tissues.Normal weight and obese subjects were analyzed in 6 groups. Clinical periodontal status was determined through plaque index, gingival index, bleeding on probing, pocket probing depth, clinical attacment level and radiographs. Oxidative stress is known to contribute to various diseases by affecting cellular functions through the oxidation of proteins, lipids and DNA. Oxidative stress can be assessed by measuring the products of oxidative damage found in proteins, lipids and DNA or reductions in total antioxidant capacity Malondialdehyde, protein carbonyl and total antioxidant capacity levels are biomarkers of oxidative stress in gingival crevicular fluid.

In response to the high prevalence rates of childhood obesity in central Ohio, the Center for Healthy Weight and Nutrition (CHWN) established the Primary Care Obesity Network (PCON); a partnership between primary care physicians and Nationwide Children's Hospital's Center for Healthy Weight and Nutrition, a tertiary care obesity center, the first of its kind in Ohio. The overall goal of PCON is to bring an effective and user friendly obesity management program to the community physician's office to prevent and treat the growing number of obese children in the setting of the private office. The predominant nutrition messaging approach to tackling childhood obesity has revolved around the food choices and portion sizes. While this is relevant, an area with significant potential for impact for maintaining optimal growth and a healthy weight for young children is addressing feeding behaviors and self-regulation of intake;. - the "how" of eating. The investigators objective it to investigate whether this self-regulation approach can be employed for an older age group of 6-11 years old.

Postural changes are known to affect normal lung volumes. A reduction in sitting to supine functional residual capacity (FRC) is well-described in non-obese subjects adopting a supine position. However, postural changes in lung volumes in the obese require further exploration. We aimed to longitudinally address the effects of weight loss on postural changes in lung volumes and pulmonary function, in obesity. We tested the hypothesis that supine reduction in FRC would be absent in morbid obesity and recovered upon weight loss.