View clinical trials related to Metabolic Diseases.
Filter by:Large amounts of experimental and animal evidence have confirmed that iron accumulation is associated with bone loss. However, it is still lack of the clinical studies relating iron accumulation to bone loss, especially in the pathological conditions during our Chinese. In this study, the investigators aim to assess the association between the levels of serum ferritin and bone mineral density in Chinese healthy postmenopausal women.
Caffeine containing energy drinks (CCED) are beverages that typically contain mixtures of simple sugars, caffeine and may contain vitamin, mineral and/or herbal preparations. In Canada, the consumption of CCEDs among adolescents is a regular occurrence and a common part of the everyday diet. Contributing to the obesity epidemic in youth is the consumption of energy drinks; yet no data on the metabolic responses to CCEDs exists. This study will examine the metabolic implications of CCED consumption in adolescents, aged 13-19 years. The investigators hypothesize that CCEDs will impair glucose tolerance by ~30% in lean adolescents and the primary cause of the insulin resistance will be caffeine. Obese individuals will experience a similar level of glucose impairment, but a greater rise in blood glucose compared to their lean counterparts (i.e. higher starting glucose level). For many, this additional, caffeine-induced rise will expose them to hyperglycemia, putting some individuals in the glucose intolerant or transient diabetic range. It is hypothesized that continued metabolic insult resulting from CCEDs may predispose susceptible individuals to chronic metabolic diseases later in life. The investigators will also examine the genetic basis of caffeine-induced glucose intolerance. This gene-diet interaction could explain why caffeine may be much more metabolically harmful for some individuals compared to others. The study of 'metabolomics' will also be utilized to analyze caffeine and caffeine metabolites such as theobromine, theophylline, and xanthine. This will be accomplished using Nuclear Magnetic Resonance (NMR) spectroscopy. Results from this study will have the potential to alter current perceptions that CCED are 'harmless' and will have far reaching implications for both medical professionals and legislators alike.
The objective of this study is to determine the percentage of children with genetic markers putting them at increased risk of developing type 1 diabetes, and to offer the opportunity for these children to be enrolled into a phase II b primary prevention trial.
Changes in homocysteine values after bariatric surgery remain controversially discussed. This is the first comprehensive summary to depict timeline changes in homocysteine levels following laparoscopic roux-en-Y gastric bypass.
The purpose of this study is to test how soluble epoxide hydrolase (sEH) inhibition with GSK2256294 affects tissue sEH activity and insulin sensitivity.
The purpose of the present study was to evaluate the effects of one session of aerobic exercise associated with low level laser therapy in lipolytic activity, lipid profile and inflammatory markers (C-reactive protein - CRP).
The purpose of this secondary analysis is to identify breath signatures associated with idiopathic malodor conditions.
In a cross-over study the investigators evaluate the effects of natural (Panmol-B-Complex) (Pan [Greek] = all; moles [Latin] = molecules/particles - brand name) versus synthetic vitamin B complexes to identify the bioavailability of distinct vitamins as well as long-term effects. The primary hypothesis for this study: "Natural Vitamin B-complexes are as effective as synthetic Vitamin B-complexes or better." For this reason 30 subjects (18 to 65y; BMI >19 to <29) were recruited for this study. The study population was divided into 2 groups of each 15 subjects in a cross-over trial. Vitamin supplementation consisted of Thiamine (2.93 mg), Riboflavin (3.98 mg), Niacin (29.85 mg), Pantothenic acid (10.95 mg), Pyridoxine (3.38 mg), Biotin (0.108 mg), Folic acid (0.69 mg) and Cobalamin (8.85 µg) per day in both groups. Blood samples are taken at baseline - 1.5h after vitamin supplementation - 4h - 7h - 6 weeks - wash out phase I (2 weeks); start cross-over: baseline - 1.5h after vitamin supplementation - 4h - 7h - 6 weeks - washout phase II (6 weeks). In case of main target criteria Thiamin, Riboflavin, Pyridoxine, Folic acid and Cobalamin were measured in serum as well as total peroxides (µmol/L), peroxidase-activity (U/L), total antioxidant status (mmol/L) and polyphenols (mmol/L).
Metabolic syndrome represents a major health burden worldwide affecting 20-30% of the population. This clustering of abnormalities that confers an increased risk of cardiovascular disease and type 2 diabetes mellitus, is the hallmark of "unhealthy" aging in longevity studies. Preventive strategies have so far failed since they have focused mainly on reducing caloric intake, ignoring the metabolic dysfunction in the aging body. The growing importance of the gut microbiota in all aspects of human health is clear, and unlike our genomes is potentially highly modifiable and tightly related to metabolic and immune efficiency, energy and fatty acid metabolism and satiety hormones. The investigators and others have reported that higher microbiome diversity correlates with significantly lower long-term risk of weight gain and metabolic syndrome. The investigators have recently shown that serum levels of omega-3 fatty acids correlate with higher microbiome diversity, and increased abundance of bacteria that produce butyrate are linked to lower inflammation of the gut. The investigators therefore propose to carry out a proof of concept nutritional intervention study in the TwinsUK cohort. The TwinsUK sample is probably the most detailed omic and phenotypic resource in the world and is ideal for this study. The mechanisms that result in improved microbiome composition and diversity will be explored in a highly focused novel interventional study hypothesizing that key fatty acid pathways are crucially involved in the link between diet, microbiome, immune phenotypes and metabolic syndrome. The specific objectives are to measure changes in gut microbiome composition in response to fibre supplementation compared to omega-3 fatty acid supplementation. The study will measure faecal metabolites relevant to fatty acid metabolism (short chain fatty acids), the abundance of microbial species linked to higher or lower inflammation and immune cell phenotypes to unravel the link between inflammation, diet and metabolic syndrome. There is a real lack of good diet intervention studies in this field and if successful this trial will pave the way to funding a wide variety of other diet intervention studies.
Hyperglycemia is a well-known cardiovascular risk factor. It has also been shown that episodes of hyperglycemia increase the risk for cardiovascular diseases despite return to normoglycemia, a phenomenon termed 'glycemic or metabolic memory'. The molecular mechanism underlying this phenomenon remains unclear. Cardiovascular events, such as myocardial infarction and stroke are caused by atherosclerosis, which is characterized by low grade inflammation of the vascular wall, including accumulation of innate immune cells such as monocytes and macrophages. The investigators hypothesize that chronic hyperglycemia shifts intracellular metabolism of innate immune cells towards glycolysis and changes the epigenetic state of (progenitors of) innate immune cells (monocytes and macrophages), which reprograms these cells towards a more aggressive, pro-atherogenic phenotype, thereby accelerating atherosclerosis. In this study, the investigators aim to test this hypothesis. This research will reveal whether the innate immune cells of patients with chronic hyperglycemia show a durable shift in intracellular metabolism and epigenetic changes and whether this associates with vascular inflammation.