Active clinical trials for "Obesity"

Bariatric surgery is now recognized as a procedure of choice for the treatment of morbid obesity, resulting in long-term effectiveness on weight loss and comorbidities. The two types of procedures, most often performed in Europe, are adjustable gastric banding (AGB), a purely restrictive reversible procedure, and gastric bypass (GBP), an irreversible procedure, which associates restriction and mild malabsorption. Longitudinal sleeve gastrectomy (LSG) is another bariatric procedure which tends to develop quickly. More recent, this technique is recognized in France by the High Authority of Health since 2008, consisting of fundus and greater curvature resection, removing 75 % the gastric volume, leaving a narrow gastric tube or "sleeve". Although malabsorption does not occur in most bariatric procedures, micronutrient deficiencies are possible. GBP is known to induce nutritional and vitamin deficiencies concerning iron, calcium, vitamins B12, B9, D and proteins. Restrictive procedures have minor effects on normal physiological digestive processes but could lead to vitamin deficiency secondary to decreased nutrient intake and a tendency towards avoidance of certain types of food due to intolerance. Studies of nutritional complications of bariatric surgery concern essentially AGB, GBP and vertical banded gastroplasty (VBG) which is no longer performed in France. The nutritional impact of LSG remains to be evaluated. To date, data concerning evaluation of nutritional status from patients who underwent LSG are almost non-existent. Considering this type of surgical procedure, the investigators expect to observe essentially a deficiency in vitamin B12 and iron. Indeed, defined as a purely restrictive intervention, LSG consists of gastric fundus resection which is the site of intrinsic factor production, itself necessary for vitamin B12 absorption. Moreover, decrease of hydrochloric acid production and potential vomiting caused by gastric resection can alter iron absorption. In view of the increasing popularity of this surgical technique, assessment of the nutritional consequences of longitudinal sleeve gastrectomy seems to be necessary.

Introduction The portable monitoring system (PMS) recording of cardiopulmonary parameters (level III of ASDA) has been validated in subjects with high probability of Obstructive Sleep Apnea (OSA) without comorbidities. However, there is not any study evaluating this system when OSA is associated with morbid obesity, so the validation of PMS will be very useful in order to properly work-up this highly risk population. Objective: To evaluate the accuracy of level III type of PMS - Stardust™" (STD), on patients with level II and III of obesity and high clinical suspicion of OSA. Methods:Participants with BMI > 35 kg/m2 and with suspicion of OSA will consecutively be selected from an Outpatients Sleep Clinic of UNIFESP. They will be randomized for the following order of recordings: 1) STD at home for 1 night 2) STD in the sleep lab simultaneous to PSG. AHI will be taken for subsequent analysis:a) AHI PSG b) AHI STD -lab and c) AHI STD- home.

The purpose of this study is to investigate posture dependent small airway obstruction in subjects with obesity, and to study the capacity of FOT as a measurement tool for small airways obstruction.

The period from conception to 2 years of age ('first 1000 days') has been recognized as a critical period for long-lasting programming effects on later obesity and associated NCD and a window of opportunity to implement intervention for reducing and treating childhood obesity. However, there is a dearth of prospective intervention studies that address this nutritional problem in Jamaica and there are no reports of sustainable intervention. Jamaica is a middle income country in which overweight and obesity in children are also increasing at an alarming rate. The investigators in Jamaica are seeking to provide a more comprehensive knowledge on the link between early life nutrition and later childhood health and to assess the impact of an intervention of infant feeding counselling/education in mothers on growth and body composition in their offspring.

The purpose of this study is to compare Gastric Bypass and AspireAssist Aspiration Therapy over 5 years of treatment with regards to weight loss, quality of life, complications, adverse events, and health economics.

This study has been designed to investigate if: BMI affects the immunogenicity of influenza and pertussis vaccines given during pregnancy. If pertussis vaccine co-administered with influenza vaccine impacts on the immunogenicity of the influenza vaccine. If BMI affects transplacental antibody transfer efficiency following maternal vaccinations.

We showed, for the first time, that Z-score increase during obesity was dependent on sex, severity of obesity and age but also on the bone site. Although the increase in BMD at bearing areas seems to be logically explained by the assumption that mechanical stresses have an osteogenic effect on bone tissue, BMD can in no way respond to the concomitant increase in BMD at non-load bearing areas such as the radius. These results suggest that changes in certain systemic compounds, induced by obesity, may interfere with bone metabolism. Moreover, the fact that the BMD or Z score is positively and only correlated with muscle mass and not with fat mass confirm that mechanical stresses are not the only factors acting on bone tissue. Our objectives are to determine the relationship between plasma concentration of myokines, adipokines, bone markers and BMD in obese subjects.

The objective of this study is to define associations between gut microbiota, SCFAs and obesity in populations spanning the epidemiologic transition, and explore mechanisms by which these factors may independently and collectively influence the development of obesity. The central hypothesis of this study is that the composition of gut microbiota drives SCFA production which in turn influences obesity risk at the population-level.

This study aims to explore the determinants of cognitive impairment among Indonesian geriatrics in an Old Age Home.

This study focuses on the relationship between obesity and stroke, which are both characterized by increasing incidence and prevalence with epidemic proportions worldwide and tremendous socio-economic consequences. Furthermore, obesity is an established risk factor for stroke and affects especially younger people, which increases the stroke incidence in younger patients. Unfortunately, the relationship between overweight and acute ischemic stroke including treatment by thrombolysis has not yet been evaluated thoroughly.