View clinical trials related to Endothelial Dysfunction.
Filter by:This is a prospective cohort blinded study with the aim to investigate the prevalence and clinical impact of coronary microcirculatory dysfunction (CMD) in patients with ischemic heart disease, and its association with cerebral small vessel disease (CSVD) and depressive disorders. In addition, CMD and CSVD linkage to systemic inflammation and endothelial function will also be investigated.
Left ventricular obstruction is an invalidating complication of hypertrophic cardiomyopathies (HCM), and endothelial dysfunction has also been observed in these pathologies. However, the relation between obstruction and endothelial and venous dysfunctions has not been previously studied. The main objective is to investigate the relations between endothelial and venous dysfunctions and symptomatic left ventricular outflow-tract obstruction in HCM patients.
The purpose of this study is to examine the effect of acute ingestion of a concentrated beetroot juice supplement on vascular function and exercise capacity in patients with moderate to severe chronic kidney disease
The purpose of this study is to test if watermelon juice supplementation improves vascular dysfunction experience during hyperglycemia.
Impaired endothelial function is observed in disease states related to obesity, such as atherosclerosis, coronary artery disease, and diabetes. Reactive oxygen species (ROS) production and resultant oxidative stress contribute to the development of these obesity-related diseases. The enzyme NADPH-oxidase is a major source of oxidative stress within the vasculature, and has been linked with the Metabolic Syndrome. In the investigator's previously funded studies, the investigators demonstrated for the first time that: 1) in vivo ROS were elevated in skeletal muscle of obese as compared to lean or overweight human subjects, 2) perfusion of the NADPH-oxidase inhibitor apocynin locally into muscle normalized ROS levels and reversed local microvascular endothelial dysfunction in the obese individuals, and 3) aerobic exercise training was effective at attenuating in vivo hydrogen peroxide production and reversing microvascular endothelial dysfunction in the obese individuals. The investigators will investigate in this R15 renewal application the mechanism of exercise training-induced alterations in ROS production and action on endothelial dysfunction in obesity using our newly developed microdialysis methodology of monitoring ROS production, in combination with analysis of muscle biopsy samples obtained before and after our previously tested 8-week intervention of aerobic interval exercise training. The objectives of this study are to determine the impact of in vivo NADPH oxidase activity on endothelial function in obese individuals, and to determine the mechanism of training-induced improvements in endothelial function. The investigator's unique microdialysis methodology will allow monitoring of microvascular/endothelial function and ROS generation, as well as the administration of pharmacological agents directly into muscle. The central hypothesis is that it is upregulation of both mitochondrial ROS and NADPH oxidase-derived ROS that results in endothelial dysfunction in obesity, and that exercise training down-regulates mitochondrial-derived ROS, and NADPH oxidase 4, thereby improving endothelial function. The aims of this proposal are to: 1) determine the contributions of mitochondrial ROS and specific NADPH oxidase isoforms to the NADPH oxidase dependent endothelial dysfunction in skeletal muscle of obese individuals; 2) determine the mechanism of ROS reduction and improved endothelial function resulting from an 8-week aerobic interval training program.
The implementation of nutritional strategies targeting several variables at once could benefit patients with cirrhosis. Non-alcoholic beer has different compounds derived from hops that exert antioxidant, anti-inflammatory and nutritional properties. The aim of this study is to evaluate the effect of diet + exercise and non-alcoholic beer on nutritional status, endothelial function and quality of life in patients with cirrhosis.
We believe that CEC, besides coming from cells shedding from patient vasculature, could partly belong to donor, originating from the cellular graft.
The purpose of this study is to determine if enhanced endothelial arterial distensibility observed with heat therapy translates into improved cardiorespiratory fitness. The following aims are proposed: Aim 1: to determine if chronic heat therapy results in improvements in cardiovascular function. Aim 2: To examine potential mechanism(s) of action of heat therapy in cardiovascular function.
This study is an ancillary (add-on) study to the clinical trial entitled "Effect of Nitric Oxide in Cardiac Surgery Patients With Endothelial Dysfunction", which has Clinical Trials.gov identifier NCT02836899. NCT02836899 trial randomizes cardiac surgical patients to receive either Nitric Oxide (NO) or a placebo during and after cardiac surgery. This ancillary study aims to assess the effects of Nitric Oxide on plasma reduction-oxidation reactions of patients undergoing cardiac surgery requiring prolonged cardiopulmonary bypass.
Cardiogenic shock is a serious medical condition with high mortality and morbidity. This trial assesses safety, tolerability and efficacy of Adrecizumab on top of standard of care in patients with cardiogenic shock.