View clinical trials related to Obesity.
Filter by:Low-carb ketogenic diets have become extremely popular because of large weight loss in the short-term. Yet their potential benefits in preventing long-term weight regain have not been assessed in large scale studies. The aim of this study is to determine the effect of a low-carbohydrate (CHO) ketogenic diet, compared with an isocaloric balanced diet, on the maintenance of weight loss. The secondary aim is to investigate the impact of both diets on appetite. Adults with obesity (30<BMI<40 kg/m2), will first undergo 4 weeks of a very-low energy diet aimed at inducing 5-10% weight loss and then will be randomized to two different weight maintenance diets for 1 year. One will be a low-CHO ketogenic diet (50 g CHO/day) plant-based (e.g. with less animal protein and more plant-based), and the other a diet following the Norwegian Health Directorate recommendations. Only conventional foods will be used in both diets.
This study aims to investigate the effect of metformin as host-directed therapy in obese/overweight patients with dengue Primary Objective To evaluate the safety and tolerability of metformin in obese/overweight young adults and children with dengue Secondary Objectives - To assess the effect of metformin therapy in obese/overweight patients with dengue on physiological, clinical and virological parameters - To assess the immunomodulation effects of metformin therapy in obese/overweight patients with dengue - To assess difference in gene expression between treatment group compared to non-treatment population
Background: Previous studies report that daily pecan consumption reduces cholesterol in healthy adults while promoting weight maintenance. Purpose: To examine the impact of daily pecan consumption with and without dietary substitution instructions for an 8-week period on markers of health in adults at risk for cardiovascular disease.
The long-term courses after bariatric surgery are not sufficiently known. Furthermore there is a heterogeneity in postoperative responses. The aim of this study is to investigate the glycemic course (prediabetes, development of diabetes) of patients with obesity (BMI>=35 kg/m2) who had undergone bariatric surgery compared to patients with obesity who have not. A further aim is to investigate predictors of weight development, development of body composition and insulin sensitivity of patients who had undergone bariatric surgery compared to obesity patients who have not undergone bariatric surgery. The long-term courses after different surgical procedures (Roux-Y vs Sleeve) will be compared. In this study 300 patients with obesity who had been metabolically characterized in a previous study will be recruited. These patients are examined (medical history, physical examination including ECG, BIA, weight, height) and metabolically characterized. Participants without diabetes undergo a glucose tolerance test and fasting blood sampling will be performed in participants with diabetes. All patients complete questionnaires to activity, nutrition, life quality, impulsiveness, depression and eating behavior. Randomly selected participants will be offered an abdominal fat tissue biopsy. When consent is given, this will be performed at least two days after the glucose tolerance test.
Adipose tissue is an active endocrine organ producing several hormones with circulatory and metabolic effects. In 1994, the hormone leptin was discovered. The lack of this hormone explained extreme obesity in rare patients and parenteral substitution restored body weight and metabolic disturbances. It was however soon discovered that most humans had too high levels which were related to development of cardiovascular diseases and diabetes. It was hypothesised that leptin induced vessel dysfunction which could explain this association. In this study, we wanted to examine the association between leptin and vessel function by using the venous occlusion plethysmography method. We used three protocols to evaluate this association. First protocol. In ten healthy males, leptin was infused locally in the forearm and forearm blood flow (FBF) was measured. Second protocol. In ten healthy males, leptin or normal saline was infused locally in the forearm and FBF was measured. Concomitantly, four vasodilatators were infused locally in the forearm in a randomised order and the response (blood flow and fibrinolysis) was measured. Third protocol. In eighty-three patients with known coronary artery disease, three vasodilators were infused locally in the forearm in a random order and response (FBF and fibrinolysis) was measured. The response was related to endogenous leptin levels. The two first protocols were performed in Umeå, Sweden whereas the third was performed in Edinburgh, UK, all in 2006.
Unhealthy eating habits inside and outside the home lead to developing obesity, leading to clinical and metabolic disorders, such as insulin resistance, metabolic syndrome, and chronic degenerative diseases, which are the leading causes of death in adult life. The present study compared changes in dietary habits, behaviors and metabolic profiles of obese children whose mothers attended group sessions, with those who received the usual nutritional consultation. The hypotheses were: 1. The mother's training in healthy eating methods, eliminating foods and nutrients that represent metabolic and cardiovascular risk, will change the consumption of these foods in the family, reducing them by 20% and increasing the consumption of food in the same proportion. beneficial, compared to the family of the child who only receives individual consultation. 2. Children with obesity who modify or eliminate metabolic and cardiovascular risk foods and nutrients from their normal diet will have a weight loss of -1.5 BMI compared to children who only receive the usual consultation. Randomized clinical trial, 177 mother/obese child pairs participated, 90 in the intervention group (IG) and 87 in the control group (CG). The intervention group attended six group education sessions to promote healthy eating and 87 received the usual nutritional consultation, over a three-month period. Frequency of food consumption, behaviors during feeding in the house and metabolic profile was evaluated. Data was compared using Student's t or X2.
Obesity and especially type 2 diabetes (T2D) increases the risk of neurocognitive dysfunctions including adverse effects on brain structure and function. Recent evidence from clinical studies have shown that T2D almost doubles the risk for dementia. As the population gets older, age-related chronic diseases, as T2D, become more prevalent. Scientific evidence is emerging that there are several links between metabolic and neurocognitive functions. Impaired insulin action (i.e. insulin resistance), the main hallmark of T2D, has been suggested as a likely shared common pathophysiological mechanism. However, the neural processes that determine how insulin resistance is are connected to the onset and progression of T2D and dementia remain unclear. In this context, the overall aim is to study brain insulin resistance to disentangle age-related and obesity related brain insulin resistance in healthy normal and overweight/obese persons at the age of 20 to 70 years . To this end, the investigators will assess brain insulin action using intranasal insulin/placebo during functional Magnetic Resonance Imaging (fMRI). Additionally, structural changes and cognitive processes will be assessed as secondary variables.
This study seeks to determine the feasibility of an exercise training progression with the consumption of beetroot juice prior to exercise in postmenopausal women. Results from this investigation will be used to determine preliminary effect sizes for exercise training only (control) and exercise training + beetroot juice (EX+BR) to inform the direction of larger randomized clinical trials on pre-post changes in measures of cardiovascular health and endothelial function.
The investigators aimed to investigate hepassocin levels in patients with polycystic ovary syndrome (PCOS). There are 3 groups aged between 18 and 35 years as non-obese healthy women, non-obese women with PCOS, and obese women (BMI>30) with PCOS.
In patients with chronic illness, screening for falls and their health consequences are major public health issues. Muscle weakness, gait and balance disorders are among the most common risk factors for falling. Assessing these parameters would thus be a crucial step in the evaluation of the risk of falling, allowing to more precisely orient the management strategy. Combining inertial unit sensors with clinically validated tests can provide additional information to improve the assessment of fall risks. We therefore propose to constitute a monocentric exploratory study, testing a prognostic screening tool, in patients suffering from a chronic pathology, in order to assess the risk of falling in this population. Considering the relationship between muscle weakness and the risk of falling, we can assume that a deficit in muscle strength will result in less vertical acceleration which could point to a muscle cause of the balance disorder and thus allow a finer detection of the risk of falling. On the other hand, we hypothesize that spinal static disorders in chronic pathologies and in particular osteoarthritis, as well as balance disorders linked to impaired deep sensitivity lead to an increase in oscillations of the trunk when walking which can cause postural balance disorders thus increasing the risk of falling.