Influence of Insulin on BP Change During Adolescence
Cardiovascular DiseasesHypertension3 moreTo define the relation of insulin resistance during childhood and adolescence to the development of the insulin resistance syndrome in young adulthood.
Methods for Measuring Insulin Sensitivity
ObesityHypertension2 morePatients with high blood pressure, diabetes, and who are overweight are known to have defects in the way their body responds to insulin. The purpose of this study is to develop better methods for measuring the way body tissue responds to insulin and sugar (glucose). Researchers are planning to study four groups of patients. Normal volunteers Patients who have mild to moderate high blood pressure Patients who are overweight Patients who have mild to moderate diabetes controlled with oral medication In this study patients and volunteers will undergo two separate tests designed to determine how well insulin is working in the body. The first test is called a glucose clamp test. Patients will have two needles placed in the veins of their arms. One needle will be used to take blood samples, the other needle will be used to inject doses of sugar (glucose) and insulin. The second test is called the frequently sample intravenous glucose tolerance test. In this test patients will have sugar (glucose) injected into their veins followed by a slow injected dose (infusion) of insulin. Researchers will periodically take blood samples during the test. Patients participating in the study will not directly benefit from it. However, the information gained from this study may be useful for improving the diagnosis and therapy of diseases such as diabetes, obesity, and high blood pressure (hypertension).
Effect of Low Dose Combination of Linagliptin + Metformin to Prevent Diabetes
Prediabetic StateInsulin ResistanceType 2 diabetes is a chronic disease that has reached global epidemic proportions due to the growing number of patients in all countries; It has become the disease that causes more chronic and acute complications to patients, unfortunately, when the diagnosis of type 2 diabetes is made patients are identified at very advanced stages of the disease. For all the above, the best strategies will be those that are aimed at early stages of the disease, and the investigators are convinced that the use the combination of drugs with additive pathophysiological effect plus cardiovascular protection in early stages, will have better results, lasting and with greater results impact on the natural history of the disease that throws measures that may have an applicability in clinical practice, in order to contribute to the control of this pathology. Therefore, the combination of medications with different mechanisms of action, in low doses, could be a useful strategy not only to prevent type 2 diabetes, but also to prevent macro and microvascular complications early. The goal of this clinical trial is to evaluate the effect of low doses of linagliptin + metformin vs metformin alone on physiopathological parameters, such as glucose metabolism, insulin resistance, insulin secretion and pancreatic beta cell function in patients with impaired fasting glucose plus impaired glucose tolerance, during 12 months.
Hepassocin Levels in Patients With Polycystic Ovary Syndrome
Hepassocin (Hepatocyte-derived Fibrinogen-related Protein 1)Polycystic Ovary Syndrome2 moreThe investigators aimed to investigate hepassocin levels in patients with polycystic ovary syndrome (PCOS). There are 3 groups aged between 18 and 35 years as non-obese healthy women, non-obese women with PCOS, and obese women (BMI>30) with PCOS.
The Association Between Microbiota, Endotoxaemia and the Host Obesity/ Insulin Resistance (MiPOOP...
Central ObesityThe objectives of this study are to examine the effects of ethnicity, central obesity and dietary components, on the human gut microbiome. The investigators hypothesize that these factors have an influence on the composition of the gut microbiome. Healthy subjects (n=35) provided stool samples for gut microbiome profiling using 16S rRNA sequencing and completed a dietary questionnaire. The serum samples were assayed for a panel of inflammatory cytokines. Their associations with central obesity were examined.
Nutrition, Body Composition, and Sleep
SleepBody Composition3 moreThe purpose of the research is to determine if protein and omega-3 fatty acid supplementation improve sleep, improve body composition, and improve markers of metabolic health in postmenopausal women.
Dose-Response Study to Evaluate the Effect of BKR-017 on Insulin Resistance and Other Metabolic...
Type 2 DiabetesThis study is a randomized, double-blind, placebo-controlled, dose-response study of BKR-017 and placebo that will be conducted at two investigative sites. The total duration of subject involvement is approximately 15 weeks; the screening period can be up to 3 weeks prior to the start of test period, followed by a 12-week test period. During the test period, subjects will self-administer three tablets of test product, two times daily: before breakfast and before bedtime.
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.
Description of an Immune Activation Profile Linked to Insulin Resistance in Subjects Aged 55-69...
Insulin ResistanceMetabolic Syndrome XThe aim of the study is to describe an immune activation profile of people at risk of insulin resistance based on a wide range of markers which will allow easy identification of patients at risk.