View clinical trials related to Endothelial Dysfunction.
Filter by:Hypercholesterolemia is considered one of the most important cardiovascular risk factors. Cardiovascular prevention include a class I indication to statins in addition to non-pharmacologic intervention and prevention strategies in patients deemed to be 'high risk'. Along with non-pharmacologic intervention and prevention strategies, newer approaches to reduce cholesterol blood levels currently include nutraceuticals, which are compounds derived from foods with cholesterol lowering actions. However, it remains unclear if nutraceuticals yield additive positive effects other than cholesterol lowering. In particular, there is evidence that Berberine has cardiovascular protective effects and that, in vitro, Morus Alba, mulberry fruit, modulates platelet function by inhibiting platelet activation, thromboxane formation, serotonin secretion, aggregation and thrombus formation. Furthermore, Morus Alba exerts an α-glucosidase inhibitory and antioxidant activity in vitro, which may reduce postprandial glucose peak, thus improving HbA1c concentration. Accordingly, we designated a study to evaluate the effects of two commercially available nutraceutical combined pills [LopiGLIK™, Akademy Pharma, 1 capsule/day containing red yeast rice 220 mg (at least 3,3 mg of Monacolin K) + Berberine 531,25 mg + Morus Alba 200 mg (at least 4 mg of Deoxynojirimycin) vs. Armolipid Plus®, Meda Pharma, 1 capsule/day containing Berberis aristata d.e. 588 mg (equivalent to Berberine chloride 500 mg) + Red yeast rice 200 mg (equivalent to Monacolin K 3 mg) + Policosanol 10 mg + Folic acid 0.2 mg + Coenzyme Q10 2.0 mg + Astaxanthin 0.5 mg] on lipid and metabolic profile, platelet aggregation, endothelial function and coronary flow reserve (CFR). For this purpose patients with hypercholesterolemia not requiring statins or statin intolerant at moderate cardiovascular risk will be subjected at day 0 and at day 28, after 4 weeks of therapy, to blood sampling to evaluate lipid and metabolic profile, peripheral arterial tonometry (EndoPAT), platelet aggregation tests with light transmission aggregometry (LTA), nitric oxide (NO) release, endothelial nitric oxide synthase (eNOS) phosphorylation on platelets. Only for CFR, patients will be further evaluated also after two hours from the administration of the first dose of nutraceutical combined pill. Patients will be randomly assigned to receive therapy with LopiGLIK™ or with Armolipid Plus®.
The present study aims at investigating the effects of the oral supplementation with creatine on the systemic microvascular reactivity and plasma levels of homocysteine in vegetarian individuals of the vegan type.
The purpose of this study is to determine if postprandial (after a meal) endothelial (inner lining of blood vessels) dysfunction induced by a high sugar meal improves with a bout of exercise
The purpose of this study is to evaluate whether patients receiving human albumin for plasma volume replacement during cardiac surgery have improved postoperative endothelial function compared to patients receiving 6% hydroxyethyl starch solutions. The postoperative endothelial function, measured with peripheral arterial tonometry as reactive hyperemia index (RHI) within 2 hours following surgery, will be compared in cardiac surgical patients randomized to receive human albumin or 6% HES solutions for intraoperative volume replacement. Within two hours of arrival to the ICU peripheral arterial tonometry using EndoPAT will be performed. In a subset of 40 consecutive patients the investigators will perform additional EndoPAT measurements to describe the expected changes that occur in endothelial function during the perioperative period (baseline, early postoperative and 24 hours postoperative) using RHI. This study will also determine whether human albumin 5% reduces plasma biomarkers of endothelial and glycocalyceal damage by measuring plasma concentrations of syndecan 1 and endocan at baseline (before surgery), and 1 and 24 hours following surgery. Blood samples will be taken on the morning of the surgery, within one hour of arrival to the intensive care unit (ICU), and 24 hours after surgery or within 2 hours before discharge from the ICU (three times altogether). These samples will be used to measure the plasma concentrations of two biomarkers that measure endothelial injury.
The Purpose of this study is to determine if the Febuxostat has an effect on endothelial dysfunction on hemodialysis patients.
The project is designed as a large scale, cross-sectional study. The aim of the study is to investigate the association of micro- and macrovascular function with physical fitness and body composition in primary school children.
The primary goal of proposed investigation is to study the impact of oral glutamine supplementation on muscle mitochondrial and endothelial cell function measured mitochondrial energetics and vascular function using 31P magnetic resonance spectroscopy and optical spectroscopy (MRS/OS) among persons with moderate-severe CKD. The secondary objective is to describe the impact of oral glutamine supplementation on mitochondrial metabolic profile as well as inflammatory and oxidative stress biomarkers among persons with chronic kidney disease.
Several cytotoxic regimens are related to endothelial cell damage and vascular toxicity. Endothelial dysfunction is implicated in the pathogenesis of all known cardiovascular diseases (CVD) and closely related to the metabolic syndrome. Both CVD and diabetes contributes importantly to total mortality and to breast cancer (BC) specific mortality. In the epidemiological part of the project, the investigators will determine the prevalence and incidence of cardiovascular and metabolic morbidity/mortality in early BC patients compared to the Danish background population. In the clinical part, the investigators will study the changes of endothelial function and metabolic parameters in BC patients receiving chemotherapy. With increasing number of BC survivors, long-term consequences of curative cancer treatment should be studied. The investigators hypothesize that cytotoxic therapy worsens metabolic parameters possibly through endothelial dysfunction. If this is true, the next step will be to evaluate how strict metabolic control will affect prognosis.
The overall hypotheses of this project is that severe sepsis is associated with endothelial dysfunction in pediatric patients and that selenium deficiency is associated with changes in biological markers of endothelial dysfunction and that these changes, in turn, are associated with worse clinical prognosis.
Arterial Hypertension (HBP) has a high prevalence and low rates of control, is considered a major modifiable risk factors and one of the most important public health problems. Mortality from cardiovascular disease increases progressively with increasing blood pressure (BP) in a linear, continuous and independent. The pathophysiological mechanisms involved in the pathogenesis of hypertension exhibit metabolic abnormalities, which are related to endothelial dysfunction. Resveratrol, a polyphenol stilbene derived from various species of plants, but in our food, mainly present in red wine and grapes, has shown protective effects in cardiovascular diseases, such as preventing the damage caused by oxidative stress, decreased plasma lipids with inhibiting the formation of atherosclerotic plaque; protective effect of vascular endothelium, with increased release of nitric oxide and decreased production of free radicals in animal models, but human studies are limited and insufficient to clarify the possible effects of trans-resveratrol (biologically active form) on endothelial function, blood pressure and central aortic pressure in treated hypertensive individuals.The aim of this study is to evaluate the acute effects of trans-resveratrol supplementation on endothelial function in treated hypertensive patients.