Clinical trials: Vascular Endothelial Function
Diabetes Mellitus, Non-Insulin Dependent, Non-Insulin Dependent
Study of the Effects of Vitamin C on Patients With Type 2 Diabetes
Diabetes is a disease characterized by decreased sensitivity to the action on insulin to promote sugar (glucose) use and blood vessel relaxation (vasodilation) in muscle.
- Trial name
- NCT00001870
- Testing
- Acetylcholine
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- National Center for Complementary and Integrative Health (NCCIH)
Hypercholesterolemia, Postmenopause
Vascular and Metabolic Effects of Hormone Therapy Combined With L-Arginine in Postmenopausal Women
Estrogen therapy has been associated with reduced risk of coronary heart disease events in observational studies of postmenopausal women.
- Trial name
- NCT00001752
- Testing
- L-arginine, Estrogen
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Cystic Fibrosis
Longitudinal Assessment of Exercise Capacity and Vascular Function in Patients With CF
This project is an attempt to understand how Orkambi treatment affects exercise capacity and the function of the arteries in CF patients who are homozygous F508del.
- Trial name
- NCT03338595
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Augusta University
Diabetes Mellitus, Type 2, Hypertension
Study of the Relationship Between Blood Vessels and Insulin Response in Adolescents
This study is designed to determine whether there is a relationship between the way insulin and blood vessels work. The difference in the interaction between Caucasian and African American adolescents will also be examined.
- Conditions
- Diabetes Mellitus, Type 2, Hypertension, Heart Disease, Stroke
- Trial name
- NCT00374361
- Where
- United States
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Ohio State University
Cystic Fibrosis
Cystic Fibrosis and Endothelial Function: At Rest and During Exercise
Perhaps one of the most disturbing aspects of Cystic Fibrosis (CF) is the associated premature death. Oxidative stress has been observed in patients with CF and exercise intolerance has been shown to predict mortality in patients…
- Trial name
- NCT01772758
- Testing
- BH4 5mg, BH4 20mg, Antioxidant Cocktail
- Where
- United States
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Augusta University
Healthy, Hypercholesterolemia
The Role of Cyclooxygenase Activity in the Endothelial Function of Hypertensive and Hypercholesterolemic Patients
A layer of cells called the endothelium line the walls of blood vessels. These cells produce substances that control the tone of blood vessels and thus control blood flow through the vessel.
- Conditions
- Healthy, Hypercholesterolemia, Hypertension
- Trial name
- NCT00001742
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Type 1 Diabetes Mellitus, Coronary Artery Disease
Isometric Handgrip Exercise -MRI in Children and Adolescents
This project aims to assess coronary vessel response to isometric handgrip exercise (IHE) during magnetic resonance imaging (MRI) in children with T1D children and healthy controls.
- Trial name
- NCT03506711
- Testing
- Isometric Handgrip Exercise during magnetic resonance imaging
- Where
- Switzerland
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Lausanne Hospitals
Pediatric Hypertension, Primary Hypertension
Endothelial Extracellular Vesicles as Biomarkers of Endothelial Activation in Children With Newly Diagnosed Hypertension
Childhood hypertension is associated with early endothelial dysfunction and an increased risk of future cardiovascular disease. Endothelial extracellular vesicles (EEVs) have emerged as promising biomarkers of endothelial…
- Conditions
- Pediatric Hypertension, Primary Hypertension, Endothelial Dysfunction
- Trial name
- HYPER-endoEV-c (NCT07728643)
- Where
- Croatia
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Healthy
Estrogen Alternatives Study
Healthy postmenopausal women not currently taking hormone replacement or hormone modulating therapy take a 3-month course of estradiol/raloxifene/placebo to evaluate the effects of each on vascular function, as indicated by PET…
- Trial name
- NCT00108238
- Testing
- Estradiol followed by progesterone, Raloxifene
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- US Department of Veterans Affairs
Endothelial Dysfunction, Obesity
Leptin Infusion and Endothelial Vasomotor Response
Adipose tissue is an active endocrine organ producing several hormones with circulatory and metabolic effects. In 1994, the hormone leptin was discovered.
- Conditions
- Endothelial Dysfunction, Obesity, Vasodilation, Venous Occlusion Plethysmography
- Trial name
- LIVARM (NCT04374500)
- Testing
- Leptin infusion plus vasodilators in healthy men, Leptin infusion in healthy men, Vasodilators in CAD patients
- Where
- 2 sites in Sweden, United Kingdom
- Volunteers
- 103 people, healthy volunteers welcome
- Sponsor
- Stefan Soderberg
Salt; Excess, Pregnancy Related
Dietary Salt During Pregnancy and Maternal Vascular Function
The main goal of this study is to investigate the association of dietary salt intake during pregnancy with systemic micro- and macrovascular reactivity and uteroplacental vascular function of the mother, and to examine the…
- Trial name
- NCT05048225
- Where
- Croatia
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Vascular Formation
Effect of Regular Exercise on Vascular Function and Cardiovascular Risk in a Sedentary Work Force
This study will evaluate the effects of NHLBI's employee exercise program, Keep the Beat, on blood vessel function. Damage to blood vessels can cause narrowing of the vessels, resulting in reduced blood flow to parts of the body…
- Trial name
- NCT00246883
- Testing
- Exercise
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)
Angina, Coronary Artery Disease
Exercise-training Before Coronary Artery Bypass Graft (CABG)
The aim is to evaluate the effect of exercise training upon endothelial function in the mammary artery of patients who are scheduled for CABG, as well as study the functional properties of single cells isolated from a small…
- Trial name
- NCT00218985
- Testing
- Exercise training
- Where
- Norway
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Norwegian University of Science and Technology
Insulin Resistance, Glucose Intolerance
Endothelial Function in Obese Adolescents
Childhood obesity is perhaps the most significant public health problem in the most developed countries and is rapidly becoming so in developing countries.
- Conditions
- Insulin Resistance, Glucose Intolerance, Obesity, Atherosclerosis
- Trial name
- NCT01879033
- Testing
- Reactive hyperemia peripheral artery tonometry (Rh-PAT), Blood levels for glucose, insulin, lipids and adipocytokines
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Montefiore Medical Center
Obesity, Adolescent
The Effects of a Combined Exercise Training Program on Vascular Health and Metabolic Profile in Obese Adolescent Girls.
The purpose of this study was to examine the impact of 12 weeks of combined exercise training (CET) on arterial stiffness, endothelial function, inflammatory markers, insulin resistance, and body composition in obese adolescent…
- Trial name
- NCT03146026
- Testing
- Combined Exercise Training
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Pusan National University
Child, Only, Essential Hypertension
Juvenile Essential Arterial Hypertension and Vascular Function
The main goal of this study is to investigate the association of the juvenile essential arterial hypertension with systemic micro- and macrovascular reactivity and cerebral vascular function, and to examine the potential impact…
- Trial name
- NCT05109013
- Where
- Croatia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Cystic Fibrosis
Mechanisms for Vascular Dysfunction and Exercise Tolerance in CF
Cystic fibrosis has many health consequences. A reduction in the ability to perform exercise in patients with CF is related to greater death rates, steeper decline in lung function, and more frequent lung infections.
- Trial name
- CF-AOX (NCT02690064)
- Testing
- Acute Antioxidant, Chronic Antioxidant
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Augusta University
Blood Pressure
Oral L-Citrulline and ADMA in Pregnancy
The purpose of this study is to determine if oral of L-citrulline (3 grams/day) for 3 weeks provided in mid-pregnancy to obese subjects will decrease the plasma ADMA/L-arginine ratio, lower maternal blood pressure, improve…
- Trial name
- NCT00743210
- Testing
- L-citrulline
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Prader-Willi Syndrome, Obesity
Plasma Adiponectin Level and Vascular Endothelial and Smooth Muscle Cell Function in Children With Prader-Willi Syndrome
Context: Prader-Willi syndrome (PWS) is a genetic disorder characterized by childhood-onset obesity and endocrine dysfunction that leads to cardiovascular disability and early death within the first 3 decades of life.
- Trial name
- NCT01479322
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Samsung Medical Center
Hypercholesterolemia, Hypertension
Effects of Rosiglitazone on Blood Vessels in Patients With High Blood Pressure and High Cholesterol
Cells in the lining of blood vessels produce various substances that cause the vessels to dilate (relax) and constrict (tighten), thereby regulating blood flow.
- Trial name
- NCT00006071
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- National Heart, Lung, and Blood Institute (NHLBI)