Active clinical trials for "Overweight"

Excess weight is a major risk factor underlying leading causes of death globally, including cardiovascular disease, type 2 diabetes, and some cancers. Among participants assigned to the same lifestyle intervention arms in prior weight loss randomized controlled trials, large inter-individual differences in weight loss success have been observed, ranging from >50lbs of weight loss to >10lbs of weight gain. Both genetic and non-genetic factors underlying differential adherence and weight loss success are poorly understood.

Obstructive sleep apnea (OSA) is characterized by a repeated partial or complete obstruction of the airway that results in a intermittent hypoxia and sleep disturbance. A complex and reciprocal link between obesity and OSA exists. On the one hand, obesity is one of the main risk factors for OSA. On the other hand, OSA seems to promote obesity. The changes in sleep patterns that characterize OSA alter energy metabolism and promote weight gain. In particular, OSA is associated with metabolic disturbances, decreased physical activity and changes in energy expenditure resulting in weight gain. OSA is characterized by resistance to leptin which reduces the feeling of satiety and an increase in ghrelin levels which increases the feeling of hunger. There may be an increase in food intake, but very few studies have looked at this aspect. Our current knowledge is based on simple patient reports of the amount of food consumed per 24 hours. First-line treatment of OSA is based on continuous positive airway pressure (CPAP) but this approach is not curative and weight loss is encouraged. CAPP could facilitate weight loss by restoring sleep quality. Paradoxically, recent studies show weight gain proportional to the duration of use of CPP. Randomized controlled trials offering apneic patients a return to physical activity and hygiene-dietary rules have shown an improvement in OSA after weight loss. A better understanding of the influence of OSA and its treatment on the energy balance through food preferences and olfacto-gustatory sensoriality is an essential prerequisite for personalized nutritional management. In the face of unexpected weight gain under CPP, this type of intervention would be all the more beneficial as OSA and obesity are public health problems representing two independent risk factors for cardiovascular morbidity and mortality with increasing incidence. We hypothesize that the treatment of OSA with CPAP changes food preferences in favour of fatty and sugary high-calorie foods.

Good nutritional status of patients with Crohn's disease (CD) is associated with better outcome of the disease and better health-related quality of life. The prevalence of malnutrition in patients with Crohn's disease varies and is higher in patients with active disease. Available studies in the literature have assessed the nutritional status of patients with Crohn's disease. However, sample size of available studies is small and highly heterogeneous, and most patients are hospitalized with active disease. The aim of the present study is a thorough assessment of nutritional status of 250 patients either with active Crohn's disease or in remission of the disease using multiple widely available tools and methods, in order to assess their accuracy and estimate the prevalence of multiple malnutrition phenotypes such as undernutrition, sarcopenia, sarcopenic obesity and cachexia as well as overweight and obesity. Finally, the effect of the nutritional status on the course of the disease will be investigated.

Obesity has become an epidemic worldwide and is considered one of the main causes related to type 2 diabetes. The World Health Organization reported that in 2016, 39% of adults were overweight, while the percentage of obesity was 13%, together 1900 million people were overweight/obese. While in 2014 it was reported that 8.5% of the population in the world suffered from type 2 diabetes. On the other hand, in the national context, the last report of 2016 that 72.5% of the Mexican population suffers from overweight/obesity. In addition, in 2006, 14.4% of Mexicans suffered from type 2 diabetes. Obesity is a complex chronic state that is developed by an imbalance between the energy ingested and the energy expended. In addition, obesity is considered a chronic inflammatory state of low degree of cause of the immune response generated, as a consequence of the increase of adipose tissue; what explains the imbalance in the markers of inflammation. This inflammation condition has been related to the generation of insulin resistance, the increase in glucose levels and the appearance of various pathologies such as type 2 diabetes and other risk factors for cardiovascular diseases. The Yaqui ethnic group is located in the center-south zone of the state of Sonora, distributed in 8 traditional villages. A recent study conducted in the Yaqui community reported a prevalence of overweight and obesity of 25% and 43% respectively. In 2008, a prevalence of type 2 diabetes of 18.3% was reported in its inhabitants. On the other hand, there are successful programs in reducing body weight through interventions aimed at modifying lifestyles such as eating habits and physical function called Lifestyle Modification Programs. These programs have been supported through controlled and randomized clinical trials. Such is the case of the Diabetes Prevention Program. Which has achieved weight reduction and increased physical activity in the subjects treated. The Diabetes Prevention Program has been recognized and adapted for the Centers for Disease Control and Prevention and has been dubbed the "National Diabetes Prevention Program". The present study is a translational research clinical trial to evaluate the effectiveness of a program to promote the parameters of obesity and diabetes in the cardiovascular communities in the Yaqui community of the state of Sonora.

Background: Dopamine is a natural chemical in the brain that may influence eating behavior and physical activity. Researchers want to measure the brain s dopamine activity and understand how it differs in people with obesity. Objective: To better understand how brain function, particularly dopamine activity, relates to body weight and eating behavior. Individuals may be able to participate if they: Have a BMI of at least 18.5 kg/m2 Are weight-stable and generally healthy Are between ages 18-45 years Have normal blood pressure Are not using illegal drugs (based on urine drug screen) Are not following a special diet Do not have metal implants Design: Participants will be screened with: Medical history Physical exam Questionnaires and an interview to see if it is safe to have a PET/MRI scan Fasting blood and urine tests Participants will eat a special diet given to them for the 5 days before their inpatient visit. Participants will have a 5-day inpatient visit. Some days include blood and urine tests. Each day includes surveys and tests to measure habits and likes/dis-likes. A sample schedule may be: Day 1: Participants will wear a monitor that uses a needle below the skin to measure glucose. Their body fat will be measured with low-dose x-rays Day 2: Participants will have a PET scan. They will lie on a table that slides in and out of a donut-shaped scanner. They will be injected with a small amount of a radioactive substance and wear a cap on their head. Day 3: Participants will have an MRI. They will lie on a table that slides in and out of a scanner. Day 4: Participants will have another PET scan. This time, they will drink a milk shake during a break from the scanner. Then, they will go back inside the scanner for the end of their scan. Day 5: Participants will wear a hood for up to 40 minutes to measure their breathing. They will also drink special water and collect samples of their urine to measure the rate they burn energy. For 12 months after the visit, participants will track their weight and physical activity daily using a special scale and activity monitor. A few times over the year, the study team will send participants special activity monitors to use for 7 days at a time. Participants will have an in-person 1-day follow-up visit. This includes most tests except for PET scanning....

Recent research suggests a majority of Hong Kong's toddlers (aged 2 to 4) are much less active than is recommended and are increasingly engaged in sedentary behaviour, which places them at risk of becoming overweight or obese. The proposed project will test whether connecting families to nature positively influences physical activity (that is, active playtime) and healthy eating routines in children aged 2 to 4. The investigators have recently conducted a pilot study Play & Grow (P&G), a programme based on the most successful international preschool interventions described in the literature. In addition to adopting healthy eating and physical activity intervention elements, the programme was enhanced by including a novel third element: connectedness to nature (CN). To test the effectiveness of this enhanced intervention, the plan is to run a family-based randomised controlled trial (RCT). The intervention will include 240 families with children aged 2 to 4, will take the form of one-hour activity sessions for parents and children held once a week for 10 weeks. The investigators will assess lifestyle-related habits before, immediately after the completion the intervention, at 6 months and one year after the intervention. Created for this purpose, a novel measuring tool for connectedness to nature, Nature Relatedness Scale (NRS), will be validated and tested for reliability prior to the RTC. The results of RCT are intended to be used to understand which components of the intervention were most effective. The objectives of this project will be achieved over a 36-month period, and it is expected to contribute to a close examination of key components of successful healthy lifestyle promotion programme during early childhood. The investigators predict that is that the new element CN will significantly improve the intervention. Finally, the overall aim is that connecting families to nature will result in sustainable lifestyle changes that remain with them for a lifetime.

This study will investigate how some artificial sweeteners (AS) cross from blood to breastmilk in breastfeeding women after oral intake. Moreover, it will be investigated whether the kinetics of AS differ based on the women's body composition (BMI) and metabolic status (diabetes). This will be investigated through a clinical trial in which 60 women divided into three groups (normal weight, overweight and diabetic) will drink a beverage containing four AS. over a period of six hours the women will donate blood and breast milk samples in order to investigate the presence of AS.

The study will determine the weight status in primary school children in the Rhein-Neckar Region in Germany and will analyse the development of height and weight in these children during the time of COVID-19 related restrictions by asking parents to provide data from childhood examinations. Additionally, interactions between cognitive abilities and weight-status will be studied.

New advances in information computer technology and artificial intelligence (AI) offer the possibility to create a personalized tool and support system for healthy living and eating, and this is the principal objective of the PROTEIN Project (an EU-funded consortium; Horizon 2020). In order to obtain information on the acceptability, usability and its effectiveness at facilitating behaviour change of the application within the home and store. A pilot trial will be conducted in participants who are overweight (BMI 25-29.9 kg/m2) and a separate group of participants who consume a low quality diet (low in fruit and vegetable intake) and/or have a nutrition deficiency (specifically iron-deficiency anaemia). During this study the subjects will be asked to attend the lab (or remotely due to covid restrictions) at the beginning of the study for baseline measurements and instructions on how to use / download the mobile application. Participants will have their anthropometrics measured (including height/ weight/ waist: hip circumference). The PROTEIN application will collect self-reported data from the user, which includes: user profile input, dietary and fluid intake, daily physical activity (such as step count), biochemistry, sleep and chewing (in- meal behaviour). Information on how users will interact with the app, which screens they use, how many log ons and how often data is inputted will also be collected. Throughout the trial, the participants will be contacted via the application or by the researchers to request feedback on their progress and to encourage reporting of any issues. Health care professionals will also be recruited to test the expert dashboard of the PROTEIN app. Through this system they will be able to provide nutrition/ physical activity advice directly to their patients and input their relevant biochemical results (such as haemoglobin for anaemic patients).

Worldwide, 13% of the population had obesity in 2016 and overweight and obesity are recognized as the fifth leading risk factor for death (roughly 5 million deaths per year). In the United States alone, a recent study predicts that over half of the population will have obesity in 2030. At the global level, overweight and obesity are also estimated to account for 44% of diabetes, 23% of heart disease and between 7% to 41% of cancer cases, in addition to numerous other pathologies, including neurological disorders. While obesity and overweight are classified as a general disease (i.e. a body mass index (BMI) above 25 kg/m2 or 30 kg/m2, respectively), there are large variabilities between classifications of obesity observed. For example, sub-populations of obesity present either a rapid or delayed onset of other chronic diseases, such as diabetes or cardiovascular disease. Many studies show that lifestyle interventions are effective in improving overweight and obesity through weight loss, but with very large inter-individual variability, especially in the long-term. These interventions and the respective observed weight loss are also shown to reduce the risk of other cardiovascular or metabolic diseases, demonstrating the importance of weight loss for future quality of life Interestingly, there is a large variation in weight loss when implementing the same dietary or lifestyle changes, even when many factors are accounted for in clinical studies. Similar variable weight loss or metabolic responses are also observed for other obesity treatments, such as pharmaceutical or surgical interventions. Therefore, in order to prevent and treat overweight and obesity, it is critical to progress in the understanding of individual variations in responses (trajectories) to weight loss programs. While biological, environmental, and behavioral factors indeed drive personal responses, recent advances have allowed more insight into how the human body processes these stimuli, namely through microorganisms inhabiting the gastrointestinal tract. Over the last 10 years, the gut microbiota, the 100 billion bacterial cells inhabiting our intestines, has emerged as a recognized factor contributing to our health. Given its access to the food and medicine consumed by an individual, the gut microbiota can be seen as a "super integrator" highly sensitive to our environmental and lifestyle changes. Accumulating evidence has highlighted that the gut microbiota translates these environmental changes by altering its diversity of bacteria or functions and producing molecules that interact with organs and the brain. As part of a weight loss program conducted within the standard of care in a network of clinical centers across France, the investigators set out to establish a cohort to examine the relative contribution of clinical, nutritional, and lifestyle factors related to individual's weight loss success with an emphasis on evaluating the gut microbiome of individuals. Within this context, the investigators are testing whether an individuals' microbiota profile before the real-life dietary intervention influences weight loss responses and changes in metabolic health parameters to a standardized weight loss diet.