Active clinical trials for "Obesity"

The increasing prevalence of metabolic diseases requires new strategies in the treatment and prevention of obesity. Children exposed to a poor diet and a sedentary lifestyle are especially vulnerable and may therefore be at risk of obesity at a very early stage in their lives. Recent studies have indicated a notable misperception of children's weight by parents. The main objective of this project is to study the association between parental perception of child's body weight and 1) feeding practices (permissive, restrictive or model); and 2) child's degree of overweight.

Obesity is a frequent disease mainly caused by environmental/polygenic factors and more rarely caused by the alteration of a single gene ("monogenic obesity"). The diagnosis of these rare forms can lead to personalized management (new treatments, prognosis, adapted hygienic and dietary rules) and family screening. The use of a panel covering the known causes of monogenic obesity on a pediatric cohort of severe and early obesity will allow to evaluate the relevance of these analyses to adapt the management of this type of patients.

Obesity is at risk for the development of chronic kidney disease but the involved mechanisms are not known (Navarro et al. 2015). Establishing the link between obesity and kidney damage is difficult. Indeed, kidney function measurement lacks precision in obese people (Lemoine et al. 2014) and requires expensive methods such as measurement of 99mTc-DTPA clearance. Biopsies are too invasive for the detection of emerging kidney damage or for the following of the kidney function. Therefore new tools are required for the early identification of at risk individuals for the kidney damage complication. Mesenchymal stem cells may represent such a relevant tool. These cells are present in a large number of organs, including kidney (Costa et al. 2020). In addition to be differentiated cells progenitors (Dominici et al. 2006), they also support immunosuppressive, anti-fibrotic and pro-angiogenic functions that have been used for the treatment of kidney fibrosis (Usunier et al. 2014). Therefore, mesenchymal stem cells contribute to tissue homeostasis and their alterations may reflect organ dysfunctions. Indeed, mesenchymal stem cells from obese adipose tissue lose their immunosuppressive (Serena et al. 2016) and differentiation (Gustafson et al. 2009) functions and contribute to fibrosis (Keophiphath et al. 2009) and inflammation (Lee et al. 2010; Gustafson, Nerstedt, et Smith 2019). It is thus probable that kidney dysfunctions are associated with functional alterations of kidney mesenchymal stem cells. The collection of mesenchymal stem cells from kidney can easily be performed from urine and next cultivated for amplification. They are called urine stem cells (USC). From our experience with obese mouse adipose stem cells, we observed that functional changes of stem cells preceded adipose tissue dysfunctions. Functional signatures of mesenchymal stem cells are thus representative of changes occuring in the function of the tissue notably in answer to obesity. These features could be used to identify obese people presenting ongoing alterations of kidney function, before clinical manifestations of kidney dysfunction. Because kidney mesenchymal stem cells are easy to isolate from urine, their collection is compatible with the follow up of patients and can be applied to a large number of individuals, including the younger. USC could represent a valuable tool to detect progression towards kidney damage. In this project we plan to analyse USC alterations induced by obesity and to identify signatures associated with the progression towards kidney damage and type 2 diabetes. The goal is to evaluate USC as potential marker for the non invasive monitoring of patients in answer to a need that is not achieved by the present available approaches.

Greater time spent in sedentary behaviors, independent of physical activity level, can increase risk of morbidity and mortality. Objective assessments indicate that bariatric surgery patients spend large amounts of time in sedentary behaviors. The present study is the first to test whether a mobile health (mHealth) approach that employs widely adopted smartphone technology to monitor and modify sedentary behaviors as they occur is a feasible and acceptable method of reducing sedentary time in these patients and other obese populations.

Investigate whether the course of an isolated nocturnal alveolar hypoventilation can predict the future occurrence of obesity-hypoventilation syndrome (OHS) in obese subjects

This primary purpose of this study is to determine if ATHX-105 phosphate causes weight loss over a 12-week period.

The goal of this observational study is to examine the level of body awareness in individuals with obesity and investigate the parameters associated with body awareness. In addition, compare these parameters with healthy subjects with normal weight. The main questions it aims to answer are: How is body awareness affected compared to healthy individuals? Is physical activity level, dynamic balance, proprioception, and reaction time related to body awareness in individuals with obesity? Is there any difference between obese and normal-weight individuals in terms of physical activity level, dynamic balance, proprioception, and reaction time?

The Childhood Hypertension Consortium of South Africa (CHCSA) was established to foster relationships between the healthcare sector and schools through community engagement and outreach as well as contributing to the decolonization of normative paediatric blood pressure reference values. To date, there has been no nation-wide project in South Africa to determine nationally representative normal blood pressure reference values, nor to estimate the true prevalence of hypertension in the paediatric population of the country. This study will provide critical information on the understanding of blood pressure and hypertension in children, especially of African ancestry. Not only will this effort contribute to the development of the first nationally representative normal reference values of blood pressure but will also benefit healthcare providers in the sector with a clear guideline on the management of high blood pressure in children as developed by experts working with these challenges daily.

To determine the association between obesity phenotypes with cardiovascular diseases. Primary Outcomes: 1- To examine the association between different obesity phenotypes and cardiovascular diseases.by using echocardiography, lipid profile Secondary Outcomes: frequency of obesity phenotypes on our locality Correlation between each type of obesity phenotypes and other metabolic disturbances (e.g. DM, dyslipidemia, NASH) Correlation between epcardial fat, carotid intimal thickness and different obesity phenotypes.

Pilot study to test the acceptability and feasibility of an intervention aimed to test the effectiveness, in preschool children, of an integrated physical activity intervention in the classroom based on intervallic training (MOVI-HIIT) on improving executive function, body composition and cardiorespiratory fitness.