Mealtime Walking Study to Improve Postprandial Metabolic Response
PreDiabetesPostprandial HyperglycemiaThis randomized crossover trial will investigate the metabolic responses following the consumption of a bagel+juice meal under 3 conditions: control, fiber (positive control), and postmeal walk in15 healthy adults. It is hypothesized that the postmeal walk will reduce glycemia, insulinemia, and oxidative stress similar to fiber.
Adiponectin, ICAM-1, VCAM-1 Levels and Metabolic Syndrome in Obese Adolescents
ObesityAbdominal Obesity6 moreAdipose tissue secreting a number of adipokines which regulate insulin sensitivity, energy metabolism and vascular homeostasis, so the dysfunction of adipose tissue is linked with the incidence of obesity accompanied with insulin resistance, hypertension and cardiovascular disease (1). Obesity is known to alters the expression of adipokines due to the adipose tissue hypertrophy (2), including adiponectin, in which able to exert a potent anti-inflammatory and vascular protective effect (2). It has been proposed that adiponectin acts to prevent the vascular dysfunction due to obesity and diabetes by improves insulin sensitivity and metabolic profiles to reduce the risk factors for cardiovascular disease and protects the vasculature through its pleiotropic actions on endothelial cells, endothelial progenitor cells, smooth muscle cells and macrophages (1). The concentrations of adiponectin of 5 to 25 mg/mL had a significant inhibitory effect on the expression of monocyte adhesion and adhesion molecule induced by TNF-α in vitro. Atherosclerosis is an inflammatory disease in which adhesion molecules on arterial endothelial cells are responsible for the accumulation of monocytes/macrophages and T lymphocytes. While obesity is low-grade inflammation in which make a contribution on endothelial dysfunction by increasing the oxygen-derived free radicals (ROS) due to adipocyte hypertrophy, leads to an endoplasmic reticulum (ER) stress and mitochondrial dysfunction (3). Adiponectin is accumulated in the vasculature, and it reduced on obesity due to suppression by TNF-α and lead to adiponectin-deficiency which stimulate the significant increases of Vascular cell adhesion protein 1 (VCAM-1) and Intercellular Adhesion Molecule 1 (ICAM-1) or known as CD54 in aortic intima (4). Here we investigate the level of adiponectin, ICAM-1, VCAM-1 with the incidence of MetS in obese adolescents.
Evaluation of OxxyneaGS in Acute Glycemic Regulation on Light Hyperglycemic Subjects
HyperglycemiaPostprandialThis study aims to evaluate and select the best combination of polyphenol and white kidney bean ingredients in the acute glycemic modulation after a complete meal by measuring blood glucose and insulin.
Vitamin K to Slow Progression of Dyslipidemia and Diabetes Risk (Vita-K 'n' Kids Study II)
ObesityInsulin Resistance5 moreAnimal studies have found that vitamin K-dependent proteins matrix Gla protein and osteocalcin beneficially influence lipid and glucose metabolism, respectively. However, this concept has not been tested in humans at risk for dyslipidemia and diabetes risk. Vitamin K supplementation presents an opportunity to test the hypothesized link between the vitamin K-dependent proteins and markers of lipid and glucose metabolism. The investigators will conduct an 8-week vitamin K intervention (to manipulate carboxylation of matrix Gla protein and osteocalcin) and determine its effects on markers of dyslipidemia and diabetes risk. Sixty obese children will be randomly allocated to either the control group receiving placebo or the low-dose (45 mcg/d) or high-dose group (90 mcg/d) receiving vitamin K (menaquinone-7).
The Influence of Sampling Site When Assessing Glucose Tolerance or Insulin Sensitivity With Oral...
HyperglycemiaInsulin SensitivityFor decades, it has been known that post-meal blood glucose concentrations were associated with the risk of T2D, which was reflected in early diagnostic guidelines. The oral glucose tolerance test (OGTT) has been used since at least 1923 and has remained the most common test for assessing glucose tolerance. Arterial blood (or arterialised blood using heated hand technique) is most appropriate for determining glucose tolerance and insulin sensitivity since this best represents the concentrations of metabolites and hormones that peripheral tissues are exposed to. It is essential to investigate whether venous blood (sometimes used during an OGTT) is representative of arterialised blood during an OGTT, and under different metabolic conditions. The investigators want to understand whether OGTT-derived insulin sensitivity indices differ from venous and arterialised blood; and 2) investigate whether metabolic status (i.e. rest vs lower-limb exercise) influences the difference between forearm venous and arterialised concentrations of glucose and insulin during an OGTT.
Pathways for Health Equity Quality Improvement Strategy
Diabetes Mellitus Type 2 With HyperglycemiaThe PATHWAYS for Health Equity research program builds on the 5-year FORGE AHEAD Indigenous diabetes quality improvement research program (2013 - 2017). PATHWAYS for Health Equity, a 3-year research program (2017 - 2019), is a great opportunity to continue our important collaborative diabetes quality improvement research with an increasing number of Indigenous partnering communities and researchers and key stakeholders (collaborators, policymakers and knowledge-users). Four partnering First Nations communities will join the Pathways program to develop community-driven quality improvement initiatives championed by a Community Facilitator and supported by a Community Data Coordinator.
Durban Diabetes Study:A Study of the Epidemiology of Diabetes Mellitus in Urban South Africans of...
Diabetes MellitusHyperglycemia2 moreType 2 diabetes (T2D) is an emerging epidemic in sub-Saharan Africa, with an estimated prevalence of 6%. With around seven million cases of T2D in 2000, it is anticipated that over 18 million Africans will have the disease by 2030. In South Africa the prevalence of T2D in people of African descent has been reported to be between 3-10%. However, there have been limited studies on diabetes epidemiology in South Africans using currently employed World Health Organization (WHO) criteria. To assess the burden of T2D and associated risk factors in South Africa, we are establishing the Durban Diabetes Study (DDS) - a population-based cross-sectional study in the city of Durban (the eThekwini municipality) to be undertaken in 1,200 participants of African descent. In-depth health questionnaire responses, biophysical measurements and blood and urine samples will be gathered from these participants. These data will allow researchers to estimate the population prevalence of T2D and associated risk factors in the region. The infrastructure created for this cross sectional study has the potential to serve as a strong framework for future research initiatives and public health interventions within the region.
OptiScanner Versus Standard Blood Glucose Monitoring
HyperglycemiaThe study is to demonstrate the accuracy of the OptiScanner in measuring blood glucose levels in critically ill patients when compared to a reference YSI 2300 STAT Plus and the Gem 3000, the reference standard for Erasme University Hospital.
Very-Low-Density-Lipoprotein-Triglyceride(VLDL-TG) Metabolism During Acute Hyperglycemia
Type 1 DiabetesThe purpose of this study is to estimate the acute effect of hyperglycemia on Very-Low-Density-Lipoprotein-triglyceride(VLDL-TG) secretion.
Study of Procoagulation Markers in Stroke Patients
StrokeHyperglycemia1 moreThe Insights on Selected Procoagulation Markers and Outcomes in Stroke Trial (I-SPOT): Response to Insulin Administration and Blood Glucose Control proposal is designed to accompany the Stroke Hyperglycemia Insulin Network Effort (SHINE) clinical trial, a Phase III multicenter, randomized, controlled trial planning to determine the efficacy and validate the safety of glycemic control in stroke patients. The SHINE trial will recruit 1,400 AIS patients with Type II diabetes mellitus (T2DM) and hyperglycemia, each receiving 3 days of hyperglycemia control with intravenous (IV) insulin therapy or control therapy with subcutaneous (SQ) insulin. The I-SPOT trial will recruit 315 SHINE patients. Blood coagulation marker levels will be measured before and at 48 hours after the start of treatment. Baseline and temporal changes in biomarkers levels will be compared between treatment groups. Hypothesis: The decrease in levels of markers of blood coagulation will be greater in patients treated with IV insulin to reduce BG than in patients treated with SQ Insulin as the standard fashion. Hypothesis: The decrease in levels of markers of blood coagulation will be greater in patients with than without favorable (SHINE) outcome (defined as the baseline stroke severity adjusted measure of functional ability at 90 days after AIS). Hypothesis: Hyperglycemia control modulates the relationship between blood coagulation levels and functional outcome in T2DM patients after stroke. Patients treated with IV Insulin for hyperglycemia control with favorable (SHINE) outcome will have greater decreases in blood coagulation levels than either IV Insulin-treated patients without favorable outcome or SQ Insulin-treated with or without favorable outcomes at 90 days after AIS.