Clinical trials: Flow Mediated Dilation
Dyslipidemia
Study of Trilipix Effects on Lipids and Arteries
Fibrates reduce atherosclerosis and cardiovascular disease events. A major mechanism of this benefit appears to be their ability to raise plasma high density lipoprotein cholesterol (HDL-C), especially in patients with high…
- Trial name
- NCT01025492
- Testing
- Trilipix
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Utah
Healthy
Efficacy of Brooke Bond Black Tea Extract on Flow Mediated Dilation in Indian Males
This study examines the effect of 1800 mg/day standardized Brooke Bond black tea extract, equivalent to 400 mg flavonoids, on Flow Mediated Dilation in healthy Indian males.
- Trial name
- NCT01561300
- Testing
- Nutrition intervention study with a black tea extract, Nutrition intervention study with a control
- Where
- India
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Unilever R&D
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
Chronic Obstructive Pulmonary Disease (COPD)
Long Term Nitric Oxide Bioavailability on Vascular Health in Chronic Obstructive Pulmonary Disease
Chronic obstructive pulmonary disease (COPD) affects up to 14 million people and is among the top five leading causes of death worldwide.
- Trial name
- COPD-LT (NCT02774226)
- Testing
- Tetrahydrobiopterin (BH4), Antioxidant Cocktail
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Augusta University
Vascular Function
Effect of Black Tea on Vascular Function
Epidemiological studies indicate that regular consumption of three cups of black tea per day reduces the risk of stroke or myocardial infarction.
- Trial name
- Heraclitus (NCT01945970)
- Testing
- Black tea extract, Positive control
- Where
- Italy
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Unilever R&D
Glucose Intolerance, Aortic Stiffness
Healthy Aging Through Functional Food
The purpose of this study is to determine whether dietary inducers of glyoxalase 1 are effective in improving metabolic and vascular health.
- Conditions
- Glucose Intolerance, Aortic Stiffness, Vasodilation
- Trial name
- HATFF (NCT02095873)
- Testing
- Glyoxalase 1 (Glo1) inducer
- Where
- United Kingdom
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of Warwick
Pulmonary Disease, Chronic Obstructive
Nitric Oxide Bioavailability in Chronic Obstructive Pulmonary Disease (COPD)
More patients with chronic obstructive pulmonary disease (COPD) die from cardiovascular disease than direct pulmonary complications.
- Trial name
- NCT01398943
- Testing
- Tetrahydrobiopterin (BH4), Antioxidant Cocktail
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Augusta University
Endothelial Dysfunction, Aging
Passive Mobilization and Vascular Function
With aging, vascular function (VF) declines. Inactivity and sedentary life style have been shown to contribute to the worsening of VF.
- Conditions
- Endothelial Dysfunction, Aging, Bed Rest
- Trial name
- NCT03087643
- Testing
- Passive mobilization - PM
- Where
- 3 sites in Italy
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- Universita di Verona
Smoking
Endothelial Function and Autonomic Regulation After Short-term Smoking Cessation: Varenicline Versus Placebo
The purpose of this study is to evaluate endothelial function and autonomic regulation (for example, heart rate and blood pressure) in smokers before and after short-term smoking cessation.
- Trial name
- NCT00673595
- Testing
- Varenicline
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Cystic Fibrosis
Blood Flow and Vascular Function in Cystic Fibrosis
Cystic fibrosis (CF) 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-FLOW (NCT02057458)
- Testing
- Sildenafil (Acute-1 hour), Sildenafil (Subchronic-4 weeks)
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Augusta 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
Postural Tachycardia Syndrome (POTS)
Effect of Dietary Sodium Intake on Vascular Endothelium
The investigators will test the hypothesis that markers of vascular endothelial dysfunction will be exaggerated acutely with an extreme high sodium diet compared to an extreme low-sodium diet.
- Trial name
- NCT01550315
- Testing
- Pulsitile Arterial Tonometry (PAT) Protocol, Calf Blood Flow in Reactive Hyperemia (CBF-RH), Evaluation of Forearm-Mediated Dilation
- Where
- United States
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center