View clinical trials related to Metabolic Diseases.
Filter by:The goal of this pilot and feasibility study is to is to test the feasibility of conducting a cross-sectional study on adiposity and cardiometabolic and neurocognitive risk factors at Kings College Hospital NHS Foundation Trust (KCH). The main aim is to assess and compare anthropometric measurements of adiposity (weight, Body Mass Index (BMI), Waist Circumference (WC), Waist-to-Hip ratio (WHR), Neck circumference (NC)), liver fat (hepatic steatosis and fibrosis), cardiometabolic risk factors (dyslipidemia, insulin resistance, hypertension) and neurocognitive risk factors among participants, according to their ethnic background. Participants will come at KCH for one visit and will have their anthropometric measurements and cardio-metabolic profile assessed. They will also perform questionnaires on lifestyle, socio-economic status and neuro-cognitive health during their visit.
The prevalence of age-related chronic diseases (like obesity, type 2 diabetes and cardiovascular diseases) is mounting worldwide, reaching pandemic proportions. These age-related chronic diseases are associated with diminished skeletal muscle mitochondrial function in humans. Nicotinamide adenosine dinucleotide (NAD) is a coenzyme that regulates mitochondrial function, therefore, plays an important role in energy metabolism. Importantly, it has been shown that high cellular NAD+ levels as well as a high NAD+/NADH ratio promote metabolic and mitochondrial health. In contrast, NAD+ bioavailability declines upon aging in humans as well as in animal models of metabolic disorders and type 2 diabetes. These findings fuel the notion of boosting the NAD+ bioavailability in order to improve metabolic disturbances and mitochondrial dysfunction in aged individuals. Supplementation with nicotinamide riboside (NR), a naturally occurring form of vitamin B3, boosts cellular NAD+ levels. However, in contrast to animal studies, NR supplementation in humans has so far been unsuccessful in improving skeletal muscle mitochondrial function, exercise capacity or insulin sensitivity. Interestingly, Recently, it has been suggested that metabolic conditions where NAD+ levels become limited, is needed for NR supplementation to exert beneficial health effects. This metabolic condition could be achieved by exercise. However, studies combining NR and exercise are lacking, and that is why we will perform the present study.
The goal of this cross-sectional observational study is to to perform a thorough characterization of the quantitative and qualitative differences in peripheral blood cells, and circulating factors (proteins, metabolites, lipids, extracellular vesicles) in different stages of several metabolic diseases (diabetes, obesity, non-alcoholic fatty liver disease) that share common pathophysiological mechanisms and in comparison with adult healthy controls. The main question[s] it aims to answer are: - Which are the quantitative (number and concentration) and qualtitative (characteristics, functional assays) differences in platelets in patients with metabolic diseases vs subjects without metabolic diseases - Which are the quantitative (number and concentration) and qualtitative (characteristics, functional assays) differences in leucocytes or circulating molecules in patients with metabolic diseases vs subjects without metabolic diseases
Glycogen storage disorders (GSD) are a class of inborn metabolic abnormalities characterized by enzymatic defects in glycogen production or breakdown and are one of commonest metabolic disorders of the childhood. Their pathogenesis mostly involves the liver and muscles and can range in severity from minor disorders with a typical lifespan to those that are fatal in infancy. Different GSDs, such as type 0a, I, III (most common type), IV, VI, IX, and XI (based on specific gene variants) are now referred to as hepatic GSDs involving liver (+ muscle). GSDs show clinically in a wide range of ways, and they have typically been identified by combining clinical symptoms, biochemical data, and pathological findings. But due to lack of multicentre evaluation, there is persistent scarcity of data with regard to the overall spectrum of genetic defects in Indian children presenting with GSD, their natural course and genotype-phenotype correlation. Also, there is limited data on common genetic variations in Indian population causing hepatic glycogen storage diseases. An Indian GSD registry is needed to describe the spectrum, natural course, genotype-phenotype correlation, outcome and response to medical therapy in Indian children with GSDs. The study would be the first to extensively describe the genotype of Indian children with GSD and their natural course. Being a multicentric study, the results generated would therefore be applicable to the whole of the country. Understanding the prevalent genotypes in Indian population and their related phenotype would help both the individual management decisions of these patients and further policy making for their diagnosis and treatment. Results from this study could thus guide appropriate decision making based on outcome and help choose the modality of treatment for the individual patient - medical, or liver transplantation.
The goal of this randomized, crossover, clinical trial is to link: 1) gastrointestinal motility patterns induced by acute consumption of whole and refined grains, 2) enteric microbial production of bioactive metabolites, and 3) circulating postprandial appearance of metabolites important to cardiometabolic health including glucose, triglycerides, and cholesterol. Participants will be asked to consume a Smartpill monitoring device that records metrics of gastrointestinal motility in response to whole or refined grains, monitor cardiometabolic metabolties over an 8 hour postprandial window, and provide a fecal sample for microbiome-related analyses.
Coronary heart disease (CHD) combined with chronic kidney disease (CKD) affects a substantial portion of the population and carries a significant disease burden, often leading to poor outcomes. Despite efforts to strictly control traditional risk factors, the efficacy in improving outcomes for patients with both CHD and CKD has been limited. Recent advancements in lipid metabolism research have identified new lipid metabolites associated with the occurrence and prognosis of CHD and CKD. Our preliminary trial has shown that levels of certain lipid metabolites, such as Cer(18:1/16:0), HexCer(18:1/16:0), and PI(18:0/18:1), are notably elevated in patients with CHD and reduced kidney function compared to those with relatively normal kidney function. This suggests that dysregulation of these non-traditional lipid metabolites may contribute to residual risk for adverse outcomes in these patients. Furthermore, the emerging concept of "cardiovascular-kidney-metabolic syndrome" and the availability of new treatment options highlight the urgent need for a risk stratification tool tailored to modern management strategies and treatment goals to guide preventive measures effectively. To address this, we propose to conduct a prospective cohort study focusing on CHD combined with CKD. This study aims to comprehensively understand the clinical characteristics, diagnosis, treatment status, and cardiovascular-kidney prognosis in these patients. Through advanced metabolomics analysis, we seek to identify lipid metabolism profiles and non-traditional lipid metabolites associated with the progression of coronary artery disease in CHD-CKD patients. Leveraging clinical databases and metabolomics data, we will develop a robust risk prediction model for adverse cardiovascular-kidney outcomes, providing valuable guidance for clinical diagnosis, treatment decisions, and ultimately improving patient prognosis.
Metabolic bone disease of prematurity (MBDP) is caused by insufficient content of calcium, phosphorus, and organic protein matrix in preterm infants or bone metabolism disorder, which is one of the complications affecting the quality of life of preterm infants. The early symptoms of MBDP are insidious, and there is no unified and clear diagnostic method. The diagnosis is mostly based on typical clinical manifestations and X-ray findings, but at this time, bone mineral density has decreased significantly, so early detection and diagnosis are difficult. Studies have shown that exosomal micrornas have biological characteristics and targeting specificity, and can be used as new molecular diagnostic markers for diseases. Several studies have reported the use of plasma or serum microRNAs as molecular markers for early prediction of bone diseases. In our previous study, we extracted plasma exosomes from preterm infants for high-throughput sequencing of microRNAs, and identified differentially expressed micrornas related to bone metabolism. In this study, exosomes were used as carriers, and digital PCR was used to verify the specificity and sensitivity of plasma exosomal microRNA as biomarkers of MBDP in a large sample size. The above biomarkers were compared and verified before and after treatment in children with MBDP. Further revealing plasma exosomal microRNA as a biological indicator for evaluating the efficacy of MBDP may improve the diagnostic level of MBDP, improve the outcome and prognosis of very low birth weight preterm infants, thereby improving global health and reducing socioeconomic costs.
This is a cohort study to understand the role of the human metagenome, and associated metabolites, in health and in various diseased states, in particular obesity as well as sarcopenia. Recruited participants will have their fecal, salivary, urine, serum, and in certain instances, mucosal samples taken, for metagenomic sequencing and metabolite testing. We hope to uncover various differences and signatures in the metagenome and metabolome in various diseased states, with potential future therapeutic applications in personalised medicine.
The glycemic index is the ability of carbohydrates in foods to induce increases in blood glucose levels after consuming them. Based on the capacity for increasing blood glucose levels, foods can be classified as having a low, medium, or high glycemic index. This property is of interest in health and nutrition because it allows estimating the impact the food will have on postprandial glycemia, which may able better food selection in situations where adequate glycemic control is required, such as in individuals diagnosed with Diabetes Mellitus. The objective of this study is to determine the glycemic index of 9 formulations of complete oral nutrition supplements and classify them based on their glycemic response.
Background: Ketosis after bariatric surgery is a metabolic process that occurs when the body breaks down fat for energy because of not getting enough carbohydrates. Insufficient production of ketone bodies reduces the rate of weight loss, and excessive amounts of ketones can lead to ketoacidosis or liver failure in patients with nonalcoholic steatohepatitis (NASH). The investigators hypothesize that weight loss is directly related to calorie intake, and a significant reduction in carbohydrate content leads to increased ketosis and the risk of ketoacidosis. Objectives: The study aimed to compare the incidence of ketoacidosis and liver failure in patients with NASH with different intakes of carbohydrates in the early postoperative period after gastric bypass. In addition, the investigators want to find out how carbohydrate restriction will affect weight loss for up to 1 year.