Clinical trials: Regional Blood Flow
Ocular Physiology, Regional Blood Flow
Effects of Vitamin C on Hyperoxia-Induced Reduction of Retinal Blood Flow
High arterial blood oxygen tension leads to vasoconstriction of retinal vessels, possibly related to an interaction between reactive oxygen species and endothelium-derived vasoactive factors.
- Trial name
- NCT00712907
- Testing
- vitamin C (Mayrhofer) 24mg/min i.v. for 64 min, 100% O2 (AGA) two times for 12 min
- Where
- Austria
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Sickle Cell Anemia
Nitric Oxide to Improve Blood Flow in Sickle Cell Disease
Nitric oxide is important in regulating blood vessel dilation, and consequently, blood flow. This gas is continuously produced by cells that line the blood vessels.
- Trial name
- NCT00009581
- Testing
- L-NMMA, Acetylcholine
- Where
- United States
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Macular Degeneration, Glaucoma
An Open Study Comparing the Effects of Moxaverine on Ocular Blood Flow in Patients With Age- Related Macular Degeneration, Primary Open Angle Glaucoma and Healthy Control Subjects
A number of common eye diseases such as age-related macular degeneration and glaucoma are associated with ocular perfusion abnormalities.
- Conditions
- Macular Degeneration, Glaucoma, Regional Blood Flow
- Trial name
- NCT00709449
- Testing
- moxaverine
- Where
- Austria
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Autoregulation
Regulation of Choroidal Blood Flow During Combined Changes in Intraocular Pressure and Arterial Blood Pressure
Autoregulation is the ability of a vascular bed to maintain blood flow despite changes in perfusion pressure. For a long time it had been assumed that the choroid is a strictly passive vascular bed, which shows no autoregulation.
- Trial name
- NCT00812526
- Testing
- Suction cup application, Squatting
- Where
- Austria
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Healthy
Effect of Antioxidants on Oxygen Induced Vasoconstriction in Lipopolysaccharide (LPS) Induced Inflammatory Model in Humans
Oxidative stress has been implicated in playing a pathogenic role in many disease processes, especially in age-related disorders.
- Trial name
- NCT00914576
- Testing
- Vitamin and mineral supplement, 100% Oxygen, Escherichia coli Endotoxin
- Where
- Austria
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna