Metabolic Adaptations to Weight Loss With and Without Exercise
ObesityMetabolic Disease4 moreStudy Purpose: The combination of caloric restriction and exercise is the most common first-line treatment for obesity-related disorders, yet we know very little about how these two very different treatments work together. A deeper understanding about mechanisms underlying the health benefits of adding exercise to a weight loss program will not only aid efforts to optimize more effective lifestyle interventions, but it can also uncover novel targets for the treatment/prevention of obesity-related diseases. Although a reduction in body fat is the fundamental adaptation to weight loss, we know almost nothing about the effects that adding exercise has on structural and functional changes within fat tissue that may further enhance metabolic health. This is very important because many obesity-related metabolic health complications are tightly linked with abnormalities in abdominal fat tissue. We argue exercise-induced modifications in abdominal fat tissue will reveal persistent health benefits even if some weight is regained Study Summary: 10% Weight Loss Phase - Subject participation in the study will involve a series of metabolic tests before, at midpoint, and after undergoing a 10% weight loss program (with or without exercise training depending on group randomization). During this, subjects will be randomized into one of two different experimental groups: Moderate Intensity Continuous Training (MICT) exercise group No exercise (control) group Follow-up Phase: After completing the metabolic testing post-weight loss, all study-related diet and exercise supervision will end and subjects will be free to make their own choices regarding diet and exercise/physical activity behavior. Subjects will then be asked to complete follow-up testing at 2-, 4- and 6- months post-weight loss. Total involvement in the study for each subject will likely be about 10-13 months (4-7 months during weight loss phase, 6 months during follow-up phase).
Ketone Ester Effects on Biomarkers of Brain Metabolism and Cognitive Performance in Cognitively...
Metabolic SyndromeNormal CognitionBackground: In Alzheimer s disease (AD) the brain cannot use glucose as a fuel. The brain can use ketones as a fuel instead of glucose. Researchers want to test a supplement, Ketone Ester (KE). It may improve brain metabolic function and cognition in normal people and, perhaps, down the road, in patients with AD. Objective: To study the change in brain ketone levels in people after 28 days of taking KE compared with baseline and placebo. Also, to study changes in cognitive performance. Eligibility: People 55 years old or older with metabolic syndrome and no cognitive impairment Design: Participants will have 4 visits. Participants will be screened at Visit 1 with: Medical history Physical exam Blood and urine tests Cognitive testing Participants will be randomly assigned to receive either the study supplement or a placebo with same amount of calories. Neither they nor the researchers will know which they receive. Visit 2 will include repeats of some screening tests. It will also include: Stool sample (brought from home) MRI/MRS: Participants will lie on a table that slides in and out of a scanner. A coil will be placed over their head. They may be asked to perform leg exercises. First dose of study supplement or placebo About 2 weeks after Visit 2, Visit 3 will include blood and urine tests and a questionnaire. About 2 weeks after Visit 3, Visit 4 will include repeats of the Visit 2 tests. Participants will drink the study supplement or placebo 3 times per day during the study. They will keep a daily log of each dose. They will bring the log to Visits 3 and 4. Participants will by contacted by phone once per week during the study to see how they are doing.
Sulforaphane Supplementation Study
Non-Alcoholic Fatty Liver DiseaseObesity1 moreNon-alcoholic fatty liver disease (NAFLD) is increasing in the population, and is associated with heart disease and diabetes. At present there are no licensed drugs for treatment of NAFLD, therefore changes in diet and increased physical activity leading to decreased body fatness is the recommended management/treatment strategy. However, these are difficult to achieve and maintain for many individuals. A potential compound gaining interest in regards the treatment/prevention of NAFLD is sulforaphane, which is found in vegetables such as Broccoli. Animal studies suggest supplementing with sulforaphane can increase fat oxidation. This increased "fat burning" may result in lower levels of fat in the liver and overall in the body. The researchers will ask participants to undertake an intervention phase which will involve consuming two sulforaphane tablets a day for approximately 3 weeks. Participants will be asked to maintain all other aspects of their lifestyle throughout the intervention phase. The researchers will measure and compare participants whole-body and liver fat oxidation in response to a standardised test meal before and after the intervention phase by taking blood and breath samples. The researchers will also measure the amount of fat in participants liver and heart using a non-invasive technique known as magnetic resonance spectroscopy (MRS) before and after the intervention.
Effects of Adding L-BAIBA to Exercising Adult Overweight and Obese Men and Women
ObesityWeight Loss3 moreBeta-amino isobutyric acid (BAIBA) is a myokine produced in skeletal muscle and has been shown to impact how our body metabolizes fuel. We seek to examine changes in body composition, weight loss, glucose control, and cardiometabolic risk factors after adding supplementation of BAIBA to exercise in overweight and obese men and women.
Modifying Metabolic Syndrome and Cardiovascular Risk for Prostate Cancer Patients on ADT Using a...
Biochemically Recurrent Prostate CarcinomaMetastatic Prostate Adenocarcinoma3 moreThis phase II trial studies how well an exercise program and continuous Fitbit monitoring work for managing metabolic syndrome and cardiovascular disease risk in patients with prostate cancer that has spread to other places in the body (metastatic) or has come back (recurrent) and does not response to treatment (refractory) and are receiving androgen deprivation therapy. Balancing treatment efficacy, drug side effects, and competing comorbidities with prostate cancer is essential. This trial is being done to learn if an exercise program can help to improve metabolic syndrome and cardiovascular (heart) fitness in prostate cancer patients who are receiving androgen deprivation therapy.
Obesity, Metabolic Dysregulation and the Airway Epithelium in Asthmatics
AsthmaObesity1 moreThe objective of this pilot study is to determine whether obesity and metabolic syndrome are in fact synergistic in relation to airway nitric oxide (NO) biology. To do so, the investigators want to determine how obesity and the metabolic syndrome relate to metabolism in bronchial airway epithelial cells and the nasal epithelium.
Testing the Adipose Expandability Hypothesis In Vivo During Overfeeding
Overweight and ObesityMetabolic SyndromeAdipose, or fat, tissue is a plastic organ that retains the ability to expand and store excess calories during positive energy balance in humans. The capacity of subcutaneous (subQ) adipose tissue to expand and remodel is an important determinant of obesity-related health complications, and impaired expansion of subQ fat tissue is thought to contribute to the risk of diseases such as the Metabolic Syndrome (MetS) and type 2 diabetes mellitus (T2D). The objectives of the study are to evaluate the changes and mechanisms of (subQ) adipose tissue expandability that occur as a result of short-term weight gain and to investigate the effects on cardio-metabolic health outcomes. Findings from this study will provide new insight into the dynamics of adipose expansion and remodeling during changes in energy balance and how this may impact future fat tissue function and metabolic health.
The Impact of Bariatric Surgery on Adipocyte Metabolism
Metabolic SyndromeObesityThe purpose of this study is to understand how daily rhythms of behavior affect the expression of genes in fat cells, and how these daily cycles affect the way fat cells respond to insulin (a hormone that controls blood sugar levels) before and after bariatric surgery.
The Role of Vitamin E Incorporated Oat Supplementation in Metabolic Syndrome (MetS) Patients
Metabolic SyndromeThe objective of this study is to evaluate the effect of vitamin E incorporated oat supplementation among the metabolic syndrome (MetS) patients.
CArdioMetabolic Prevention in Adolescents
Adolescent ObesityLife Style3 moreThe aim of the CArdioMetabolic Prevention (CAMP) pilot study is to investigate the effect of a group intervention on lifestyle in adolescents and on at least one adult family member. This will be followed by telemedicine tools for 12-week-time period. A face-to-face group intervention addressing nutrition, physical activity and well being together with an assessment of anthropometry parameters, body composition, questionnaires, blood and stool sampling will be done before and after 12 weeks of telemedicine. The study aims to investigate: the effect of 12-week intervention on body weight, anthropometry parameters and cardiometabolic markers in comparison to the conventionally led obesity clinic for adolescents the compliance with telemedicine tools that will focus on the support of balance nutrition, physical activity (evaluation of daily steps through smart bands) and family well being in regards to the effect on anthropometry and laboratory parameters the effect of the intervention on data from questionnaires (eating disorders, quality of life, psychological health) before and after the intervention data analysis of family members with respect to theirs offspring