Clinical trials: Endothelial Dysfunction
Obesity, Endothelial Dysfunction
Effects of Body Mass Index on the Hyperemic Response to Regadenoson
We will test the hypothesis that a single dose of Regadenoson will produce equivalent degrees of coronary hyperemia in patients of widely different body size.
- Conditions
- Obesity, Endothelial Dysfunction, Decreased Vascular Flow
- Trial name
- NCT00859833
- Testing
- Adenosine, Regadenoson
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Utah
Aging, Arterial Stiffness
Inorganic Nitrate Supplementation on Cerebrovascular Aging and Arterial Stiffness Study
This study investigates the effect of dietary inorganic nitrate supplementation on 1) large elastic artery stiffness and hemodynamics and 2) cerebrovascular function in middle-aged and older adults.
- Conditions
- Aging, Arterial Stiffness, Endothelial Dysfunction, Hypertension
- Trial name
- INCA (NCT03617302)
- Testing
- Experimental: Nitrate-containing
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Gary L. Pierce, PhD
Diabetes, Hypertension
FFA Hypertension and Inflammation in Lean and Obese Subjects
Although a large number of obese patients develop high blood pressure, the cause is unknown. The purpose of this study is to look at the effect of high fatty acids (a type of fat) in the development of high blood pressure in…
- Conditions
- Diabetes, Hypertension, Obesity
- Trial name
- FFAADA (NCT00721617)
- Testing
- Intralipid 20%, Normal Saline, Oral fat load
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Emory University
Hypertension
Effects of Nebivolol on Skeletal Muscle During Exercise in Hypertensive Patients
The purpose of this study is to determine if Nebivolol improves microvascular perfusion in skeletal muscle during exercise in hypertensive patients and whether this improvement is accompanied by reduction in vascular oxidative…
- Trial name
- NCT01501929
- Testing
- Metoprolol succinate, Nebivolol, Non-invasive measurement of Cardiac Output (CO)
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
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
Obesity, Endothelial Dysfunction
Effect of Vitamin D Supplementation on Endothelial Function in Obese Adolescents
Vitamin D deficiency has been linked to endothelial dysfunction in adults. Obese adolescents have a high prevalence of Vitamin D deficiency as well as evidence of endothelial dysfunction.
- Conditions
- Obesity, Endothelial Dysfunction, Vitamin D Deficiency
- Trial name
- NCT01746264
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Oxidative Stress, Endothelial Dysfunction
Genes, Fibrinolysis and Endothelial Dysfunction- Dialysis Aim 3
The purpose of the study is to see how two classes of blood pressure medications,angiotensin-converting enzyme inhibitors (Ace inhibitors) and angiotensin receptor blockers (ARBs), differ in their long term effects on certain…
- Trial name
- NCT00878969
- Testing
- valsartan (ARB), ramipril (ACE inhibitor)
- Where
- United States
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University
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
Periodontitis
Periodontal Infection and Endothelial Dysfunction
The purpose of this study is to determine the effect of periodontal therapy on endothelial function and other biomarkers of cardiovascular disease
- Trial name
- NCT00681564
- Testing
- One-Stage Full-Mouth Disinfection, Periodontal care
- Where
- 2 sites in Colombia
- Volunteers
- 102 people, healthy volunteers welcome
- Sponsor
- Universidad del Valle, Colombia
Hypertension, Diabetes
Free Fatty Acids-Induced Hypertension in Obese Subjects (Aim #2)
The purpose of this study is to see if salsalate, an Nuclear factor-kappaB (NF-κB) mediated inflammation inhibitor, or carvedilol, an α- and β-blocker, will protect against free fatty acid induced hypertension, insulin…
- Trial name
- FFAADA (NCT02406586)
- Testing
- Salsalate, Carvedilol, Intralipid 20%
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Emory University
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
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
Endothelial Dysfunction
Effect of Ezetimibe on Flow-mediated Brachial Artery Reactivity in Healthy Subjects
The objective of this study is to show that Ezetimibe will improve endothelial function following high cholesterol meals in healthy subjects by decreasing absorption of cholesterol and thus affecting concentration and composition…
- Trial name
- NCT00376246
- Testing
- Ezetimibe
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- University of California, San Diego
Endothelial Dysfunction, Inflammation
The Cardiovascular Effects of Electronic Hookah Vaping
Hookah (water-pipe) tobacco smoking has quickly grown to become a major global tobacco epidemic among youth; with electronic (e-) hookahs more recently increasing in popularity especially among young female adults, who endorse…
- Conditions
- Endothelial Dysfunction, Inflammation, Oxidative Stress
- Trial name
- NCT03690427
- Testing
- Traditional hookah smoking, Electronic hookah vaping
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Prediabetes, Obesity
Effects of Antidiabetic Medications on the Postprandial State in Prediabetes
This project addresses cardiovascular disease risk in patients with prediabetes. Levels of lipids after eating a meal ("postprandial lipids") are strong independent predictors of cardiovascular risk.
- Trial name
- NCT02104739
- Testing
- Exenatide, Saxagliptin, Exenatide extended-release (ER)
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- The University of Texas Health Science Center, Houston
Tobacco Abuse Smoke
Effect of an Inhaled Glucocorticosteroid (ICS) on Endothelial Dysfunction in Cigarette Smokers
The hypothesis underlying the proposed study is that the blunted endothelium-dependent vasodilation seen in the airway of current smokers is also present in the brachial artery, and that the same inhaled corticosteroid (ICS)…
- Trial name
- NCT01216735
- Testing
- Fluticasone
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Miami
Healthy, Smokers
Effect of Whole Body Periodic Acceleration on Airway Endothelial Function
In the present proposal the investigators wish to assess the effect of a single session with the device known as Exer-Rest® which applies Whole Body Periodic Acceleration (WBPA) on baseline airway blood flow (Qaw) and in Qaw…
- Conditions
- Healthy, Smokers, Asthma
- Trial name
- NCT01213706
- Testing
- Whole Body Periodic Acceleration (WBPA)
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Miami
Heart Failure, Heart Diseases
Effects of Passive Heat Therapy on Oxygen Consumption and Cardiovascular Fitness in Adults
The purpose of this study is to determine if enhanced endothelial arterial distensibility observed with heat therapy translates into improved cardiorespiratory fitness.
- Conditions
- Heart Failure, Heart Diseases, Cardiovascular Diseases, Endothelial Dysfunction
- Trial name
- NCT04026126
- Testing
- Heat Therapy Treatment
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center
Elevated Blood Pressure, Endothelial Dysfunction
Effectiveness of Vitamin D Supplementation
This pilot study will examine the effectiveness of vitamin D supplementation on reducing blood pressure and improving endothelial function. Premenopausal African American women will be recruited.
- Trial name
- NCT02513823
- Testing
- 2,000 International Units (IU)of vitamin D3
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Texas Woman's University
Hyperglycemia, Cardiovascular Disease
Green Tea Confections For Managing Postprandial Hyperglycemia-Induced Vascular Endothelial Dysfunction
The objective of this study is to formulate and validate a green tea confection (i.e. "gummy" candy) as a strategy to attenuate postprandial hyperglycemia-induced impairments in vascular function.
- Trial name
- NCT01857258
- Testing
- Green Tea Concentrate
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Ohio State University