View clinical trials related to Obesity.
Filter by:A double-blind, cross-over, placebo-controlled, proof-of-concept study using oral peptide YY3-36 solution to investigate the mechanistic role of lingual PYY in regulating appetite, energy intake and food preference in people with overweight/obesity. The aim of this study is to investigate the mechanistic role of lingual PYY in regulating appetite, energy intake and food preference in people with overweight/obesity.
The Healthy Lifestyle Program involves twelve, 2-hour seminars during which participants will learn how to build healthy behaviors through a combination of individual and group exercises. Participants will use lessons from the seminars to pursue health goals and learn the basics of physical fitness, nutrition, sleep & recovery, stress management, and weight management for optimal health. Throughout the program, participants will be supported by a behavior coach along with dedicated fitness training, dietary strategy, and stress management support. As part of this next installment of the program, we are conducting a study of the Healthy Lifestyle Program to capture outcome data, including weight/BMI, blood pressure, hemoglobin A1c, and lipid profile.
Mechanisms that drive addiction to sugar rich foods are a major driving factor in the pathogenesis of obesity, which has become one of the most significant health care burdens. The molecular underpinnings of these hedonic mechanisms that drive addiction to sugar are poorly understood. The investigators demonstrated that methylglyoxal (MGO) derived Advanced Glycation Endproducts (AGEs) enhance food intake especially under a high sugar diet. The investigators identified a methylglyoxal (MGO) lowering cocktail, Gly-low, a combination of alpha-lipoic acid, nicotinamide, thiamine, pyridoxamine, and piperine that demonstrates a multimodal effect influencing many pathways related to aging including calorie restriction. Glycation lowering (Gly-low) treatment significantly reduces food intake and weight gain in the db/db mice that lack the leptin receptor. The investigators also extended the lifespan of C57BL/6 mice fed with these compounds starting when they were 24 months old. Based on these results, the investigators hypothesized that methylglyoxal (MGO) lowering cocktail of compounds can be given to adults with obesity, specified as body mass index (BMI) >27, to lower serum and urinary markers of insulin resistance, lower boy mass index (BMI), and lower food intake.
The investigators aim to study the effects of a 24-week remote-based resistance exercise training program on cardiovascular disease risk factors, cognitive function, and quality of life in older adults living with mild cognitive impairment or Alzheimer's Disease and/or a related dementia. Data for this study will be collected at the beginning, middle, and end of the resistance training program. Participants of this study will receive a baseline health-fitness assessment at the beginning of the study. Measurements of resting blood pressure, fasting blood glucose and lipids, waist and hip circumferences, height and weight, cognitive function and quality of life will be collected at the health-fitness assessment. Participants will then receive supervised remote-based resistance exercise training with Therabands, 3 days per week for 12 weeks before receiving a second 12-week health-fitness assessment in the middle of the intervention. Participants will then receive 12 additional weeks of supervised remote-based resistance exercise training with Therabands, 3 days per week for 12 weeks before receiving a third 24-week health fitness assessment at the end of the study.
This past century witnessed a significant increase in the prevalence of obesity, when since 1980 worldwide obesity has more than doubled. According to the World Health Organization, 39% of adults from the age of 18 years or older are overweight while 13% are obese. Successful maintenance of weight loss as losing at least 10% of the initial body weight and maintaining it for at least one year. However, keeping the low body weight is rarely maintained, as 80% of people who lost 10% of their body weight will return to their initial weight within a year. When weight loss is maintained for 2-5 years the chance of long term success was shown to dramatically increase. Although there is no agreement as to what contributes to the recurrent weight regain phenomenon (also known as 'weight cycling' or 'yo-yo diet'), it is strongly associated with the risk of developing metabolic risk factors and their complications including heart disease and all-cause mortality. Altering the gut microbiota is one method to treat disease states associated with gut bacteria. For instance, fecal microbiota transplant (FMT) or fecal bacteriotherapy, is the process of transferring stool from a healthy donor to another. The goal of FMT is to restore host health by increasing diversity and function of the gut microbiota. The main advantage of FMT over probiotics is its ability to transplant the entire gut microbiota and metabolites from the donor to the recipient. Although numerous individual microbes have been identified as related to obesity, multiple studies suggest that loss of microbial diversity has a stronger impact on the development of metabolic dysfunction, this diversity may be restored by FMT. This study will determine whether microbiome modulation might be a possible future target against recurrent obesity in humans, and whether orally administered FMT from a lean donor, post weight loss might be an effective intervention to prevent weight regain.
Obesity is a global epidemic, and is an important cardio-metabolic risk factor associated with many non-communicable diseases, such as coronary artery disease (CAD), diabetes and non-alcoholic fatty liver diseases (NAFLD) (1-6). In 2010, our team recruited a cohort of obese adolescents [mean age at baseline: 17.2 years, mean body mass index (BMI): 30.9 kg/m2] from school surveys (7). Our group has examined the impact of dietary intervention using low glycemic index (GI) diet to reduce body weight of adolescents. We have reported that participants in the low GI group had a significantly greater reduction in obesity indices namely waist circumference after 6 months of intervention compared to counterparts in usual diet counselling group. We recently conducted a phone interview of the participants and most, if not all, of them remained obese from self-reported body weight. Pharmacological treatment options for obese individuals are limited (8-10). Amassing evidence showed that the gut microbiota plays an important role in energy harvesting and lipid metabolism. Gut microbiota dysbiosis was repeatedly reported in patients with obesity (11-13). Studies in humanized mouse models suggest that the obese gut microbiota was more efficient in harvesting energy from diet and may be a causative factor in the pathogenesis of metabolic disorders, including obesity, type 2 diabetes and NAFLD (14). Therefore, modulation of microbiota might be a potential strategy for prevention and treatment of metabolic disorders. Microbial-based therapeutics such as probiotics, prebiotics, symbiotic or fecal microbiota transplantation have shown promising effect in improving host metabolic health (15, 16). Prebiotics consumption changes the composition of gut microbiota, alters levels of satietogenic gut peptides, decreases systemic inflammation, and improves insulin sensitivity and glucose tolerance (17). Supplementation of probiotics in overweight and obese individuals with probiotics reduces body weight and obesity indices (16, 18, 19). The use of probiotics also reduces intrahepatic triglyceride (IHTG) in patients with non-alcoholic steatohepatitis (20) and improves post-prandial glucose control in subjects with type 2 diabetes (21). G-NiiB®, a patent-protected microbiome immunity formula, composed of naturally occurring food-grade bacteria approved by health authorities, has been developed by a group of CUHK gastroenterology experts.
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.
During the study, the resuscitation room, general wards and ICU were installed fixed or mobile acquisition devices in the resuscitation room, the emergency department of Peking Union Medical College Hospital, and the collection platform was set up. Patients with acute diseases (infection, diabetes complications, etc.) caused by metabolic syndrome (obesity, diabetes, etc.) were selected after informed consent. All medical intervention behaviors, relevant medical records and medical outcome records within the collection scope of the device platform were collected prospectively . And regular follow-up, guidance of patients with metabolic syndrome control, while collecting all the lifestyle characteristics of patients, some patients with metabolic cabin research, and observe the relevant medical outcomes. After that, all the collected data were coded, and the influence of all lifestyle and medical behavior interventions on patients' medical outcomes was studied by artificial intelligence method.
Childhood obesity is a strong predictor of adult obesity with health and economic consequences for the individual and society. Adiposity rebound (AR) is a rise in the Body Mass Index occurring between 3-7 years. Early adiposity rebound (EAR) occurs at a median age of 2 years and is a risk factor for later obesity. Events happening in "the first 1,000 days" play a role in obesity development. One of the key elements in this crucial time window is the gut microbiome, a highly dynamic organ that is sensitive to environmental exposure being linked to obesity development. Prenatal (dietary/lifestyle maternal factors and environmental exposure) and postnatal determinants (the type of feeding, sleep patterns, speed of growth) and environmental obesogenic pollutants may influence the infant microbial colonization, thus increasing the risk of EAR onset. LIMIT will holistically identify the longitudinal interplay between the intestinal microbiome and infant/maternal nutritional and lifestyle habits, environmental factors exposure and anthropometric measurements, in children with AR vs EAR, driving new mechanistic insights to create an EAR predictive model. The study will evaluate a group of 150 mother-infant pairs, during the first four years of life at different follow-up.
The purpose of this study is to assess the effectiveness and safety of HMB-enriched nutritional supplements for improving muscle mass and muscle function in Chinese adults with obesity during the weight loss process using calorie restriction.