View clinical trials related to Metabolism.
Filter by:The goal of this crossover study is to evaluate the systemic availability of short-chain fatty acids (SCFA) that are either administered in the small intestine or the colon in healthy volunteers. The main question it aims to answer is whether the site of administration affects the amount of SCFA that reaches the systemic circulation. On two test days participants will ingest capsules filled with SCFA that are specifically delivered in the small intestine or the colon. After ingestion, blood samples will be collected at regular time points.
Randomized, double-blind, placebo-controlled crossover study designed to determine the effects of increasing colonic short-chain fatty acid (SCFA) content on aerobic endurance in healthy adults, and to identify underpinning mechanisms. In random order, healthy physically active adults will consume provided diets low in fiber and supplemented with SCFA-enriched high amylose maize starch (a poorly digested resistant starch considered a fermentable fiber) or low amylose maize starch (a rapidly digestible starch) for 1-week separated by a ≥2-week washout. At the end of each intervention period, participants will complete an endurance exercise bout followed by a time trial. Biological samples will be collected to assess muscle and whole body metabolism, gut microbiota, inflammation, and gastrointestinal function.
The purpose of the study is to investigate the effect of different periods of physical inactivity on postprandial lipid metabolism in the morning after exercise by measuring plasma triglyceride levels and fat oxidation (burning). The study is a crossover intervention with all healthy participants performing three trials varying in length of physical inactive (12 hours, 24 hours, and 36 hours). All trials include a physical activity control phase (>10,000 steps/24hr), a physical inactive phase (<1,000 - 1,500 steps/12hr), a moderate intensity cycling session, and a high-fat tolerance test.
This study will evaluate the efficacy of Colon Broom Premium on gut health, metabolism, weight management, and energy levels. The study will be conducted as a virtual single-group trial in which all 120 participants will use the test product. This study will last 12 weeks, and participants will take the product daily. Participants will complete study-specific questionnaires at Baseline, Week 1, Week 2, Week 3, Week 4, Week 6, Week 8, Week 10, and Week 12. Participants will also provide body weight measurements and body circumference measurements at Baseline, Week 1, Week 2, Week 3, Week 4, Week 6, Week 8, Week 10, and Week 12. Before & after photographs will be provided at Baseline and Week 12. The Colon Broom Premium supplement contains psyllium seed husk powder, L-carnitine tartrate, CapsimaxⓇ cayenne fruit extract, chromium (as chromium picolinate), vitamin B6 (as pyridoxine HCl), vitamin B12 (as cyanocobalamin), and Iron. The study Sponsor and product name will remain anonymous to participants throughout the trial. The Sponsor name or product name will not be included in any participant-facing documentation.
Nutrition plays a crucial role in preventing various diseases, including cardiovascular and metabolic conditions. Moreover, it is gaining increasing attention in the context of preventing and treating psychiatric disorders. However, limited knowledge exists concerning the effects of food intake and stress on metabolism over time. To enhance the understanding of this subject, blood components in healthy volunteers will be examined during a standardized diet, focusing on the interaction between nutrition and stress. Physiological stress will be induced by subjecting participants to sleep deprivation for over 36 hours. Hormonal influences related to the female menstrual cycle are particularly taken into account in female participants. In conclusion, comprehending these processes can improve the understanding of nutritional physiology and contribute to advancements in clinical practice.
The aim of the study will be to evaluate the impact of consumption of meat and dairy products from extensive or intensive farming on apparently healthy individuals aged between 45 and 65 years, a stage of life associated with reduced metabolic flexibility and changes in lipid metabolism. The study will analyze: 1. The transcription factor PPAR-α determined by the gene expression of PPAR-α in white blood cells, variations in circulating fatty acid metabolism, and the endocannabinoid system determined by circulating analysis of N-acylethanolamine (NAE), and 2-monoacylglycerols (2-MG); 2. Metabolic flexibility, determined by indirect calorimetry in fasting condition during an incremental exercise; 3. Body composition, determined by bioimpedance analysis, waist circumference, and waist-to-hip ratio.
Obesity and its associated cardiometabolic comorbidities are a major health problem and although their prevalence is increasing in both men and women, evidence shows a faster increase in women, especially in those of childbearing age. In the scientific literature, cardiometabolic risks in women are often considered at menopause, younger women being considered "preserved" or less at risk than men. However, epidemiological studies show that it is essential to study and take into account these risks well before menopause, in particular in women of childbearing age, for their health but also for the health of future generations, considering the intergenerational cycle of women. However, the majority of studies have many limitations concerning the health of women of childbearing age since, in particular, they do not consider the hormonal and therefore physiological specificities of women. Indeed, the natural hormonal variations associated with the menstrual cycle but also the use of hormonal contraception, containing synthetic hormones, are important physiological modulators of these metabolic and nutritional regulations. Interestingly, in a recent narrative review, the investigators pointed out the little existing and reliable data concerning the effect of using oral contraception on the two sides of the energy balance, namely energy expenditure and energy intake. Also, it remains difficult to fully understand these metabolic and nutritional responses and therefore to optimize, whether in terms of primary or tertiary prevention, the health of women. Women using oral contraceptives activated the same brain pathways in response to food stimuli as women without contraception during the luteal phase, whereas these activations differed with respect to the follicular phase. Interestingly, women with overweight or obesity showed similar effects in terms of weight loss in response to an intervention including calorie restriction, a physical activity program and psychological support in women with and without hormonal contraception. However, while women without hormonal contraception managed to maintain the lost weight, women with contraception had a significant weight gain mainly due to an increase in their food intake. Conversely, in young healthy women following a calorie restriction of 500 kcal per week for one month, women with hormonal contraception showed greater weight loss than those without. Several parameters can potentially explain these differences in results, such as weight status, but also the nature of the intervention (i.e. caloric restriction only vs combined energy restriction and physical activity). It is indeed recognized that the level of physical activity and sedentary behaviours influence the energy expenditure of rest and exercise and also the control of appetite; the investigators have recently shown that this level of physical activity modifies the cardiometabolic responses following a meal in healthy men. This underlines the importance of considering inter-individual parameters, such as the level of physical activity and sedentary lifestyle as a predominant factor in nutritional and energy regulation at rest and during physical exercise, a key factor in energy regulation. In general, studies in women concerning the parameters of the energy balance are heterogeneous in terms of the characteristics of the population, the methodology used and do not take into account all the metabolic and nutritional responses that make it possible to understand these regulations. Thus, the main objective of this study is to evaluate the effects of hormonal status (women with and without hormonal contraception) on the fuel utilization during low-intensity physical exercise in women of childbearing age according to their level of physical activity.
It is observed that replacing meat with protein-rich plant-based food products are associated with lower mortality and obesity prevention. Sources of plant proteins typically undergo several processing and refinement procedures to improve the taste and digestibility of plant-based food products. These procedures alter the chemical composition, which can impact the nutritional quality of the processed food. It is not known what is the impact of processed products on human metabolism and intestinal microbiota. Therefore, the impact of a set of plant-based protein-rich food products with varying degree of processing on the composition and function of human gut microbiome and metabolism will be assessed in a clinical intervention
This study is planned to be recruited in two hospitals in South China, Zhujiang Hospital of Southern Medical University and Zhongshan Boai Hospital Recruit participants, plan to recruit obstetrics and child health departments in study hospitals, meet inclusion and discharge criteria 1~3 infants, a total of 360, recruited by Pearl River Hospital of Southern Medical University and Zhongshan Boai Hospital 180 people each.
This prospective observational randomized study aims to determine energy, protein intake and gastrointestinal tolerance while using enteral nutrition formulas with very high protein content and enteral nutrition formulas with normal protein content. - Differences regarding achieving protein and calorie daily targets when using enteral nutrition formulas with different protein content - Differences regarding residual gastric volume when using enteral nutrition formulas with different protein content - Differences regarding body composition when using enteral nutrition formulas with different protein content