Clinical trials: Vascular Endothelial Function
Atherosclerosis
Inflammation and Vascular Function in Atherosclerosis
The purpose of this study is to determine whether reducing inflammation in blood vessels with an aspirin-like drug called salsalate will improve blood vessel function.
- Trial name
- NCT00760019
- Testing
- salsalate
- Where
- United States
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Obstructive Sleep Apnea
Study to Assess the Changes in Blood Clotting Factors and Blood Vessel Wall Function in Obstructive Sleep Apnea
Obstructive sleep apnea is a condition in which people have decreased breathing during their sleep. Untreated sleep apnea has been linked to increased risk for cardiovascular diseases.
- Trial name
- NCT00936481
- Where
- United States
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Chronic Kidney Disease, Hypertension
Alpha-Adrenoceptor Vascular Function In Chronic Kidney Disease Focus On The Role Of Endothelial Nitric Oxide
The purpose of this study is to learn more about why most patients with early stages of kidney disease have high blood pressure.
- Trial name
- NCT00356265
- Testing
- Procedure: Regional phenylephrine arterial infusion
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Atherosclerosis
Arterial Function and Atherosclerosis in Essential Thrombocythemia
The aim of the study is to examine (a) whether patients with JAK2 V617F positive ET in comparison to age-and sex-matched, apparently healthy control subjects show more advanced progression of arterial stiffness, pulse-wave…
- Trial name
- NCT03828422
- Testing
- imaging
- Volunteers
- 82 people, healthy volunteers welcome
- Sponsor
- University Medical Centre Ljubljana
Obesity
Characterization of Brachial Arterial t-PA Release, Endothelial Function, Obesity and Inflammation
T-PA release is impaired in obese subjects. In order to have a better mechanistic understanding of t-PA release, we will compare t-PA release to Flow Mediated Vasodilation, Radial Artery Tonometry, and other markers of…
- Trial name
- P1A3B (NCT00780481)
- Testing
- Bradykinin
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
Sleep Apnea, Insufficient Sleep Syndrome
Improving Outcomes for Patients With SDB and Insufficient Sleep
The purpose of this study is to look at how sleep disordered breathing (SDB) and not getting enough sleep each night contribute to daytime sleepiness.
- Conditions
- Sleep Apnea, Insufficient Sleep Syndrome, Sleep, Hypertension
- Trial name
- RESTORE (NCT04279834)
- Testing
- PAP Treatment, Sleep Education I
- Where
- United States
- Volunteers
- 561 people, healthy volunteers welcome
- Sponsor
- Wayne State University
Obesity, Prehypertension
Vascular Dysfunction in Human Obesity Hypertension
The purpose of the study is to test the effects of blocking sympathetic nerve activity with a drug called clonidine on blood vessel function and muscle nerve activity in adults who are obese and have high blood pressure.
- Conditions
- Obesity, Prehypertension, Hypertension
- Trial name
- VANISH (NCT01983462)
- Testing
- Clonidine, Hydrochlorothiazide
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Gary L. Pierce
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
Vascular Aging
Sodium Nitrite to Treat Arterial Aging
The proposed research will determine the effectiveness of nitrite, a naturally occurring compound in the body, for improving the health and function of arteries in middle-aged and older adults.
- Trial name
- NCT02022670
- Testing
- Sodium Nitrite
- Where
- United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Boulder
Endothelial Dysfunction, Biochemical Markers
Acute Effects of E-Cigarette Aerosol Inhalation
This study comprises a portion of a larger study designed to compare results of vascular function in non-smokers to vascular function in healthy smokers chronically exposed to nicotinized electronic cigarette aerosol versus…
- Trial name
- NCT03479203
- Testing
- Electronic Cigarette Aerosol
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- University of Pennsylvania
Healthy
Impacts of a Combined Berry Extract Supplement on Vascular Function and Oxygen Utility Capacity in Young Adults
The purpose of this study is to investigate the impacts of a combined berry extract supplement (hawthorn berry, tart cherry, and bromelain extracts) on total antioxidant capacity, endothelial function, blood pressure, oxygen…
- Trial name
- NCT04312022
- Testing
- Berry extract
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Pre-hypertension, JNC 7 Stage I Hypertension
Center of Research Translation (CORT) Project 2
We propose a novel intervention for reducing BP that could have a preferential impact in patients with hyperuricemia and gout. There is a great need for new anti-hypertensives, particularly among those with gout.
- Trial name
- NCT02038179
- Testing
- Allopurinol
- Where
- United States
- Volunteers
- 99 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Cognitive Impairment, Executive Dysfunction
Vascular Mechanisms for the Effects of Loss of Ovarian Hormone Function on Cognition in Women
Complaints about memory and thinking are common in women as they go through menopause and estrogen levels fall. The ovarian hormone estrogen is important for supporting normal cognitive function, and changes in brain activity and…
- Conditions
- Cognitive Impairment, Executive Dysfunction, Endothelial Dysfunction, Cardiovascular Disease
- Trial name
- NCT02122198
- Testing
- Leuprolide acetate, Estradiol, Medroxyprogesterone
- Where
- 2 sites in United States
- Volunteers
- 17 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Endothelial Dysfunction
Impact of Smoking Cessation and γ-Tocopherol to Restore Vascular Endothelial Function
Cigarette smoking is a significant risk factor for cardiovascular disease (CVD) and is the leading cause of premature mortality in the US.
- Trial name
- NCT01314443
- Testing
- Nicotine Replacement Therapy (NRT), Gamma-Tocopherol, Smoking cessation
- Where
- United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- University of Connecticut
Type 2 Diabetes
Influence of Endothelial Function on Central and Peripheral Causes Of Exercise Impairment in Type 2 Diabetes
This study will evaluate the effects of impaired blood flow regulation on exercise. It will also determine whether the effects are more important in the heart or in the skeletal muscle tissue during exercise.
- Trial name
- InsITE (NCT00786019)
- Testing
- Exercise program, Ascorbic Acid (Vitamin C)
- Where
- United States
- Volunteers
- 47 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Hypertension
Melatonin and Nighttime Blood Pressure in African Americans--24 mg Study
The purpose of this study is to test the effect of oral melatonin supplementation (24 mg per night for 4 weeks) on nighttime blood pressure in African Americans with a history of elevated nighttime blood pressure.
- Trial name
- NCT01114373
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Emory University
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
Type 2 Diabetes Mellitus
Free Fatty Acids and Vascular Function in Subjects With Diabetes
This study will test the hypothesis that reduction in release of free fatty acids from adipocytes will restore insulin-mediated endothelium-dependent vasodilation and skeletal muscle glucose metabolism in subject with type 2…
- Trial name
- NCT00153179
- Testing
- acipimox
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Endothelial Dysfunction
The Effects of Watermelon Juice Supplementation on Postprandial Vascular Endothelial Function
The purpose of this study is to test if watermelon juice supplementation improves vascular dysfunction experience during hyperglycemia.
- Trial name
- WMJ (NCT04092439)
- Testing
- Watermelon Juice
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Pennington Biomedical Research Center
Prediabetes, Cardiovascular Disease
Cardioprotective Activities Of Whole Eggs On Vascular Endothelial Function In Prediabetic Adults
Cardiovascular disease (CVD) is largely a lifestyle-related condition that is the #1 killer of adults in the United States. Our work is aimed at understanding how short-term increases in blood sugar, like those that accompany…
- Trial name
- NCT02364570
- Testing
- Glucose (100g), Glucose (75g), Whole Eggs
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Ohio State University