Clinical trials: Neurovascular Coupling
Disorders of Consciousness Due to Severe Brain Injury, Disorders of Consciousness
fNIRS for Disorders of Consciousness
The goal of this observational study is to learn whether functional near-infrared spectroscopy (fNIRS) can measure brain activity in healthy adults and in people with disorders of consciousness (DoC) in the neuro-intensive care…
- Conditions
- Disorders of Consciousness Due to Severe Brain Injury, Disorders of Consciousness, Coma, Minimally Conscious State
- Trial name
- NCT07485361
- Testing
- Functional Near-Infrared Spectroscopy Monitoring
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Aging
The Effect of NAD Supplementation on Brain Vascular Health in Aging
Daily consumption of one of the forms of Vitamin B3, the Nicotinamide Riboside (NR), energizes the body and combats cellular aging. This study is designed to test whether NR can also improve brain health and memory.
- Trial name
- NCT05483465
- Testing
- Nicotinamide riboside
- Where
- United States
- Volunteers
- 214 people, healthy volunteers welcome
- Sponsor
- University of Oklahoma
Amblyopia ex Strabismus, Amblyopia ex Anisometropia
Neurovascular Coupling in Subjects With Amblyopia
Amblyopia is a developmental condition that is characterized by reduced vision of the eye due to the presence of a sensory impediment during visual development, such as strabismus (ocular misalignment) or anisometropia (unequal…
- Trial name
- NCT01746693
- Testing
- Dynamic Vessel Analyzer, Laser Doppler Velocimetry, 7-Tesla MRI
- Where
- Austria
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Neurovascular Coupling
26 Weeks' Dietary Supplementation With DHA- and EPA-enriched Oils on Cerebral Blood Flow in Healthy Adults
The purpose of this study is to investigate the effects of EPA- and DHA-enriched omega-3 polyunsaturated fatty acid dietary supplements on cerebral blood flow during a series of cognitive, mathematical subtraction tasks and…
- Trial name
- NCT03158545
- Testing
- EPA-rich, DHA-rich
- Where
- United Kingdom
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- Northumbria University
Dementia
Ruijin Neurobank of Alzheimer's Disease and Dementia
The goal of this observational study is to learn about neuroimage and biomarkers in the Alzheimer's continuum. The main questions it aims to answer are: How is the neurovascular coupling during AD pathogenesis? How is the…
- Trial name
- RJNB-AD (NCT05623124)
- Testing
- No intervention
- Where
- China
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Ruijin Hospital
Glaucoma, Ocular Hypertension
Neurovascular Coupling in Eyes of Glaucoma Patients
We hypothesize that glaucoma patients demonstrate an impaired retinal vascular response to the flicker stimulus, and that this disturbance is predictive of the progression of glaucomatous damage.
- Trial name
- NCT00430209
- Where
- Switzerland
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- University Hospital, Basel, Switzerland
CADASIL
Imaging Study of Neurovascular Coupling in Cerebral Autosomal Dominant Arteriopathy With Subcortical Infarcts and Leukoencephalopathy (CADASIL)
The aim of this study is to investigate using fMRI methods, EEG and dedicated mathematical models, the potential alterations of neurovascular coupling in CADASIL.
- Trial name
- MACOUPLING-CAD (NCT02071784)
- Where
- France
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Institut National de la Santé Et de la Recherche Médicale, France
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
Cystic Fibrosis, Endothelial Dysfunction
Vascular Health and Function in Cystic Fibrosis
The goal of this observational study is to learn whether blood vessel health and function differ between adults aged 40 years or older with cystic fibrosis (CF) who are taking CFTR modulator therapy and healthy adults of the same…
- Conditions
- Cystic Fibrosis, Endothelial Dysfunction, Cardiovascular Risk Factor
- Trial name
- CF-VHF (NCT07904325)
- Testing
- Non-invasive vascular, cerebrovascular and autonomic assessment
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Liverpool Heart and Chest Hospital NHS Foundation Trust
Blood Pressure
The Effect of Whey Protein Supplementation on Vascular and Cognitive Function in Older Adults
The "hardening of the arteries" observed with aging raises blood pressure and contributes to poor brain blood flow and loss of cognitive function (i.e. attention, memory, solving problems, making decisions).
- Trial name
- NCT01956994
- Testing
- Whey protein supplement, Carbohydrate supplement
- Where
- United States
- Volunteers
- 99 people, healthy volunteers welcome
- Sponsor
- Syracuse University
Stroke, Stroke with Hemiparesis
Study of Hemodynamic Markers of Upper Extremity Motor Dysfunction in Stroke Patients Using Functional Near Infrared Spectroscopy (fNIRS)
The aim of the study was to explore potential pathways for recovery and adaptation of the motor cortex by examining cerebral blood flow characteristics and hemodynamic markers analyzed by functional near-infrared spectroscopy…
- Conditions
- Stroke, Stroke with Hemiparesis, Stroke, Ischemic
- Trial name
- NCT06806397
- Testing
- Stimulus response task
- Where
- 2 sites in Russia
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Skolkovo Institute of Science and Technology
Diabetic Retinopathy
Neurovascular Coupling in Patients With Early Stage Diabetes Retinopathy
A variety of studies demonstrate that ocular blood flow is altered in diabetes and retinal perfusion abnormalities have been proposed to contribute to the pathogenesis of diabetic retinopathy.
- Trial name
- NCT00712842
- Testing
- Ocular blood flow measurements
- Where
- Austria
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Gerhard Garhofer
Postural Orthostatic Tachycardia Syndrome (POTS), POTS
Cardiovagal Baroreflex Deficits Impair Neurovascular Coupling and Cognition in POTS
Postural tachycardia syndrome (POTS), is the chronic form of orthostatic intolerance associated with excessive upright tachycardia, and occurs predominantly in young females (>85%).
- Conditions
- Postural Orthostatic Tachycardia Syndrome (POTS), POTS, Orthostatic Intolerance
- Trial name
- NCT03261570
- Testing
- Pyridostigmine, Digoxin
- Where
- United States
- Volunteers
- 51 people, healthy volunteers welcome
- Sponsor
- New York Medical College
CADASIL
Development and Validation of a Functional MRI Biomarker of Cerebral Small Vessel Dysfunction in CADASIL
Cerebral small vessel diseases (cSVD) are diseases of brain tissue involving vessels (arterioles or capillaries) with a diameter of less than 400 microns.
- Trial name
- fMRI BioSVD (NCT06859658)
- Testing
- Functional MRI at 3T
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Type 2 Diabetes, Cardiovascular Autonomic Neuropathy
Neurovascular Coupling and Autonomic Neuropathy in Type 2 Diabetes
Diabetes is a growing global health care challenge. Diabetes patients may also suffer from cardiovascular autonomic neuropathy (CAN) which may affect cerebral perfusion.
- Trial name
- NCT04625751
- Testing
- CO2-enriched air, Meal response test
- Where
- 2 sites in Denmark
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Hartwig R. Siebner
COVID-19, Post-COVID-19 Syndrome
Retinal Neurovascular Coupling in Patients Previously Infected With COVID-19
The Study objective is to measure retinal neurovascular coupling and blood flow parameters in patients previously infected with COVID-19, long COVID-19 and healthy age- and sex- matched control subjects
- Trial name
- NCT05650905
- Testing
- Dynamic Vessel Analyzer (DVA), Fourier domain optical coherence tomography (FDOCT), Optical coherence tomography (OCT)
- Where
- Austria
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Glaucoma
Neurovascular Coupling in Patients With Open Angle Glaucoma
A variety of studies demonstrate that ocular blood flow is altered in glaucoma. Various animal and human studies have shown an increase in retinal and optic nerve head blood flow in response to diffuse luminance flicker.
- Trial name
- NCT00811694
- Testing
- ocular blood flow measurements
- Where
- Austria
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Amblyopia, Regional Blood Flow
Amblyopia and Neurovascular Coupling in the Retina of Humans
The visual disorder of amblyopia affects 2% to 3% of the population. Amblyopia is a developmental condition that is characterized by reduced vision of the eye due to the presence of a sensory impediment during visual development…
- Trial name
- NCT00312390
- Testing
- Flicker, Retinal Vessel Diameter, Retinal Blood Flow
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Cognition, Neurovascular Coupling Mechanism and Cognitive Function
The Effect of Near-infrared Light Therapy on Brain Function and Cognition in Young and Older Adults
The goal of this pilot clinical trial is to test whether transcranial photobiomodulation (tPBM), a non-invasive brain stimulation technique using near-infrared light, can improve brain blood flow regulation (neurovascular…
- Conditions
- Cognition, Neurovascular Coupling Mechanism and Cognitive Function, Neurovascular Control, Brain Aging
- Trial name
- NCT07209683
- Testing
- transcranial photobiomodulation
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Oklahoma
Time Restricted Eating
Cerebromicrovascular Effects of Time-Restricted Eating in Older Adults
The central hypothesis of this study is that closer adherence to time restricted eating (TRE) will improve endothelial function, neurovascular (NVC) responses, resulting in improved cognitive performance, potentially through…
- Trial name
- NCT05488652
- Testing
- Time restricted eating
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- University of Oklahoma