Active clinical trials for "Overweight"

Abstract: Background: Obesity is a global pandemic affects all age groups and is independent risk factors for most chronic diseases. Dietary intervention is an essential component of obesity management. Dietary fibre supplements have the potential to facilitate weight reduction based on their viscosity. Up to date, the evidence of effects of some fibres on weight is inadequate, and literature provides insufficient information about the effects of the fibre viscosity in weight management. Objective: Two systematic reviews and meta-analyses of RCTs will be conducted to evaluate the effectiveness of viscous fibres, (agar, alginate, b-glucan from oat and barley, guar gum, glucomannan, pectin, PGX, psyllium), on body weight reduction. Methods: Only randomised controlled trials are accepted. The trails must have one of the selected fibres as a supplement, and the outcomes must have body weight, BMI, waist circumference, or body fat percentage. Studies shorter than 4 weeks are excluded. Three databases, (Medline, EMBASE, and Cochrane library), were searched through 04/03/2016. Results: After removing duplicates, 82 studies will be reviewed in full. Significance: This meta-analysis is the first meta-analysis that is based on fibre viscosity, and it will quantify the effect of each fibre in improving weight loss. It will also direct future research in the best direction to further explore this area.

Before and after study in obese women 25-35 years old, BMI 30-35, taking Strath® Kräuterhefe Original (liquid), Herbal Yeast Food Supplement for three weeks. At the beginning and after three weeks of the study a stool sample is provided. These samples are analysed with 16S rRNA analysis down to species level.The results are interpreted with the PICRUSt classification and Alpha Diversity Analysis and compared to internationally accepted data bases.

In this study investigators will investigate the beneficial metabolic sequelae of Liraglutide in patients with obesity or overweight; including changes in vital signs, anthropometric characteristics (weight, body mass index and body composition), biochemical parameters, metabolomics and micro-ribonucleotide acid (miRNA) molecules from blood tests. Liraglutide is a commercially available analogue of a gut hormone physiologically produced in our bowel in response to food, licenced for the treatment of overweight or obesity. Liraglutide will be offered to patients attending National Health System (NHS) or private clinics within indication and according to their agreed clinical management. Investigators aim to collect real-life information for this study along with planned clinical management from patients who agree to their treatment and to take part in our study. Patients will be able to withdraw from treatment and study at any time without giving any explanation. If successful, this study will help us combine clinical, biochemical and molecular information which will allow us to gain deeper understanding on the mechanisms behind the beneficial metabolic effects of Liraglutide in overweight and obesity. Data generated from this study will hopefully help us acquire funding for a larger multicentre study; the results of which can have substantial impact on millions of people with overweight or obesity around the world.

Oats are a commonly consumed source of viscous soluble fibre, which has an established role in cardiovascular disease risk management including in cholesterol and glycemic control. Oat beta-glucan is recognized for its cholesterol-lowering effects with approved health claims in Canada, US and Europe. However, the efficacy of oat beta-glucan on glycemic control is not clear. We propose to conduct a systematic review and meta-analysis to explore the efficacy of whole grain oats and oat beta-glucan on markers of glycemic control in people with, without or at risk for diabetes.

Pasta is an important example of a food which can lower the glycemic index (GI) of the diet, a property that has been exploited extensively in studies of low GI dietary patterns. Although low-GI dietary patterns have been shown to improve body weight, glycemic control and blood lipids, it is unclear whether pasta as part of low-GI dietary patterns will improve measures of global adiposity including body weight. The lack of high quality knowledge syntheses to support evidence-based dietary guidance of the cardiometabolic benefits of pasta represents an urgent call for stronger evidence. To improve evidence-based guidance for pasta recommendations, the investigators propose to conduct a systematic review and meta-analysis of controlled studies in humans to assess the effect of eating pasta as part of a low GI diet compared to other diets on measures of adiposity (body fatness) in humans. The systematic review process allows the combining of the results from many studies in order to arrive at a pooled estimate, similar to a weighted average, of the true effect. The investigators will be able to explore whether eating pasta as part of a low GI diet has different effects between men and women, in different age groups and in people with high or normal sugar. The findings of this proposed knowledge synthesis will help improve the health of Canadians through informing recommendations for the general public, as well as those at risk of heart disease and diabetes.

Sugars especially in form or sugar-sweetened beverages (SSBs) have been singled out as one of the prime culprits in the dual epidemics of obesity and diabetes. Artificially sweetened beverages (ASBs) provide a potentially important means for displacing excess calories from free sugars in the diet. There is, however, a concern that the use of ASBs may themselves contribute to an increased risk of obesity and diabetes. This concern led the 2015 Dietary Guidelines for American Committee (DGAC) to recommend that sugars in the diet not be replaced with ASBs but rather with "healthy options" such as water. Whether ASBs as a replacement strategy for SSBs have the intended benefits and whether these benefits are similar to those of the preferred replacement strategy water remains unclear. To address this important question and update of the European Association of the Study (EASD) clinical practice guidelines for nutrition therapy, the investigators propose to conduct a series of systematic reviews and network meta-analyses of the totality of the evidence from randomized controlled trials to evaluate the effects of water and ASBs on incident overweight and obesity and cardiometabolic risk factors. The findings generated by this proposed knowledge synthesis will help improve the health of consumers through informing evidence/base guidelines and improving health outcomes by educating healthcare providers and patients, stimulating industry innovations, and guiding future research design.

The current study seeks to elucidate the context of pathological and non-pathological eating behavior in a heterogeneous sample of overweight and obese children, aged 8-14 years. Children will undergo a two-week ecological momentary assessment (EMA) protocol in which they record all eating episodes and their physiological, emotional, interpersonal, and environmental correlates. Specific aims are to identify proximal antecedents and consequences of pathological and non-pathological eating in overweight and obese children, and to determine the prevalence of loss of control eating in the natural environment.

Despite advances in the prevention and treatment of type 2 diabetes, its prevalence continues to rise worldwide. There is a need for new modalities to improve metabolic control in individuals with type 2 diabetes and those who are overweight or obese and at risk for type 2 diabetes. Contrary to the concerns raised about the adverse role of fructose in metabolic health, various lines of evidence suggest that fructose and its epimers may improve the metabolic handling of glucose through inducing glycogen synthesis. Recent small trials in humans suggest that catalytic doses (=<10g/meal) of fructose and its epimers (allulose, tagatose, and sorbose) may reduce postprandial glycemic responses to carbohydrate loads (i.e., oral glucose tolerance test or a starch load) in people with and without type 2 diabetes. There is also limited evidence that these acute effects may manifest as longer term improvements in glycemic control. There is an urgent need to synthesize the evidence of the effects of fructose and its epimers on postprandial carbohydrate metabolism.

The purpose of this study is to determine whether astaxanthin (ASX) supplementation will reduce obesity-induced oxidative stress and improve lipid profile in overweight and obese adults.

The purpose of this study is to determine if there is an association between a variety of adverse childhood experiences and overweight and obesity. The adverse childhood experiences that will be examined include childhood abuse (physical, emotional, sexual), childhood neglect (physical, emotional), and household dysfunction (domestic violence, parental marital discord, and household members with a history of substance abuse, mental illness, and criminal behavior). Because this study will be performed at a military treatment facility, additional military unique experiences to include frequent residential mobility and parental deployment will also be examined. Hypotheses/Research Questions: Overweight and obese young adults are more likely to report having experienced adverse childhood experiences and household dysfunction than their peers of normal weight. In addition, the more severely overweight or obese the patient, the more likely the patient is to report a higher number of previous adverse childhood experiences. Thus, there is a graded relationship between the severity of overweight/obesity and the number of adverse childhood experiences.