Snacks and Satiety
Eating BehaviorOverweight1 moreThis study is designed to compare two types of snacks (almonds or a cereal-based snack), eaten between meals, on measures of appetite, including appetitive hormones, self-reported feelings of hunger and fullness, and food intake at a buffet meal or in the home environment. The investigators hypothesize that the acute responses of appetitive hormones to a meal challenge protocol will differ between almond and cereal-based snacks based on multivariate models of satiety that will be predictive of ad libitum food intake at a dinner meal as part of the meal challenge protocol. Further, the investigators will estimate if, under free-living conditions, self-selected and self-reported food intake will show appropriate energy compensation for the added calories of the snacks, and determine if one type of snack is superior to the other in this regard.
Fatty Liver in Obesity: Long-lifestyle Follow-up (FLiO)
Non-Alcoholic Fatty Liver DiseaseObese1 moreNon-alcoholic fatty liver disease (NAFLD) is a condition of excessive hepatic lipid accumulation in subjects that consume less than 20g ethanol per day, without other known causes as drugs consumption or toxins exposure. In Western countries, the rate of this disease lies about 30% in the general adult population. The process of developing NAFLD can start from simple steatosis to non-alcoholic steatohepatitis (NASH), which eventually can lead to cirrhosis and hepatocellular carcinoma in the absence of alcohol abuse. Liver biopsy is considered the "gold standard" of steatosis, fibrosis and cirrhosis. However, it is rarely performed because it is an invasive procedure and investigators are focusing in the application of non-invasive liver damage scores for diagnosis. The pathogenesis of NAFLD is multifactorial and triggered by environmental factors such as unbalanced diets and overnutrition as well as by lack of physical activity in the context of a genetic predisposition. Nowadays, the treatment of NAFLD is based on diet and lifestyle modifications. Weight loss, exercise and healthy eating habits are the main tools to fight NAFLD. Nevertheless, there is no a well characterized dietary pattern and further studies are necessary. With this background, the general aim of this project is to increase the knowledge on the influence of nutritional/lifestyle interventions in obese patients with NAFLD, as well as contribute to identify non-invasive biomarkers/scores to early diagnosis of this pathology in future obese people.
Online Platform for Healthy Weight Loss (POEmaS)
ObesityOverweightClinical trial to test the efficacy of an online platform based on behavior change principles in promoting weight loss among overweight and obese students and employees of the Federal University of Minas Gerais. The hypothesis is that participants of the group which use the platform with or without a dietitian coaching will lose more weight than those allocated to the group who receives dietary and physical activity orientations by educational videos only.
The DURATION Study: reDUcing sedentaRy behAviour to Maintain cogniTIve functiON.
Sedentary BehaviorMild Cognitive Impairment2 moreRationale: Older adults spend the majority of their time in sedentary behaviours (SB). High amounts of SB have been correlated with reduced cognitive performance. Long periods of time spent sitting results in excessive glycemic variability, potentially contributing to cognitive decline. Reducing/replacing SB with short intermittent bouts of light physical activity have shown positive effects on glycemic variability. Thus, interrupting prolonged sitting with bouts of light physical activity may regulate blood glucose and thus mitigate cognitive decline. Purpose: This study intends to investigate the appropriate interval frequency of post-prandial SB reduction, by light physical activity needed to optimize total and incremental area under the curve for glucose response in overweight older adults at risk for glucose intolerance with mild cognitive impairment in both lab and free-living environments. Second, this study aims to investigate the acute impact of reducing SB on glycemic variability and its relationship with cognition. Hypothesis: First, there will be a dose-dependent response of more frequent interruptions of SB (more frequent intervals of light physical activity) with better glycemic control. Second, reducing SB will result in less glycemic variability, which will translate into better levels of cognitive performance. Methods: Generalized linear mixed models with random intercepts will be used to evaluate the differential effects of the experimental conditions on the selected outcomes.
Effects of Liraglutid, Dapagliflozin and Acarbose on the Cognitive Function, Olfactory Function,...
Type 2 Diabetes MellitusObesity1 moreThis is a prospective, randomized, open label, parallel, 16-week study to explore and evaluate the therapeutic effects of liraglutid, dapagliflozin and acarbose on the cognitive function, olfactory function, and odor-induced brain activation in overweight/obese patients with type 2 diabetes mellitus(T2DM) inadequately controlled with metformin monotherapy.
CPAP, Nutrition & Exercise Against Sleep Apnea
Sleep ApneaOverweight and ObesityThis study evaluates the addition of a comprehensive lifestyle program including dietary management and exercise to continuous positive airway pressure (CPAP) therapy in overweighted adults with obstructive sleep apnea. Half of the participants will receive CPAP therapy while the other half will have diet consultations, nordic walking sessions and CPAP.
EndoBarrier TM Gastrointestinal Liner Diabetes Trial
Overweight and ObesityDiabetesThe management of obesity is challenging and obesity surgery is by far the most effective treatment currently available. Recent medical research indicates that it also improves the management of blood glucose levels in people with type 2 diabetes. Obesity surgery carries different risks and benefits and it is important to balance these by choosing the right procedure for each patient. Therefore new effective strategies to prevent and reduce obesity and its complications such as type 2 diabetes mellitus are needed. This study is designed to see whether a new device called the EndoBarrier Gastrointestinal Liner helps patients manage their blood sugar levels and lose weight. It is a randomised, placebo controlled trial which compares the potential of the EndoBarrier device with conventional drug therapy, diet and exercise for obesity related type 2 diabetes, and their effectiveness on metabolic state (HbA1c reduced by 20% and blood pressure below 135/85), weight loss, and quality of life. It will further evaluate whether any other conditions that may be related to obesity could become less severe and collect information about complications to determine the safety of the device. The study will also perform various measurements and tests to understand the underlying mechanism of the device. After an initial screening visit to determine patients eligibility, they will be invited for 14 subsequent visits. Patients will be randomised into either having the EndoBarrier device or standard medical therapy treatment for 12 months followed by another 12 months follow-up period. They will also be routinely seen by specialist dietitian who will provide dietetic support throughout the study.
Mobile Phone-based Intervention for Promoting Healthy Habits and Weight Loss
DiabetesHypertension5 moreA self administered 16 weeks plus follow up study to explore the efficacy of mobile phone driven apps for stress reduction coupled with guidance for healthy living among obese and overweight populations. The Study primary end points are weight of the participants, as well as glucose measurements (for subject with diabetes) and blood pressure (of subjects with hypertension).
Effect of Victoza on Dietary Preferences and Habit in Patients With Type 2 Diabetes
Type 2 DiabetesOverweightThis is an open-label comparative study in three parallel groups. It is expected that 90 patients and/or healthy volunteers will participate in this biomedical research. Distribution in groups 30 patients with type 2 diabetes and an indication for treatment with a GLP1 analogue (group 1) 30 patients with type 2 diabetes (control diabetic subjects) not treated with Incretins (group 2) 30 healthy subjects (non-diabetics) (group 3) This study will investigate modifications in eating behaviour induced by Liraglutide in patients who start treatment with Victoza® and certain aspects, such as liking (hedonic characteristic of a food), wanting (desire to eat a given food) and salivation in response to the presentation of a food by taking measurements at D0 (before initiation of the treatment with Liraglutide in the group concerned) then at 15 days (except for the controls), 3 months and 9 months (only for controls).
Effectiveness and Safety of Acupuncture for Obesity and Over-weight People
ObesityOverweightTo determine the efficacy and safety of acupuncture for obesity and overweight people in China.