Results 81 to 90 of about 11,817 (216)

Optimizing cerebrovascular endothelial health through shear stress modulation

Experimental Physiology, EarlyView.
Abstract The endothelium plays a pivotal role in regulating cerebrovascular blood flow, and its dysfunction increases the risk of cerebrovascular disease. Endothelial shear stress, a primary mechanical stimulus for endothelial nitric oxide production, is a key modulator of vascular adaptation.
Erika Iwamoto, Rintaro Sakamoto, Darren P. Casey   +2 more
wiley   +1 more source

In-Suit Doppler Technology Assessment [PDF]

The objective of this program was to perform a technology assessment survey of non-invasive air embolism detection utilizing Doppler ultrasound methodologies.
Greene, Ernest R., Nadeau, John J., Schulze, Arthur E.   +2 more
core   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source

Spontaneous Nonaneurysmal Subarachnoid Hemorrhage: Review of 75 Cases

Nepal Journal of Neuroscience, 2005
The primary objective of this study was to describe the clinical, radiological, and transcranial Doppler (TCD) ultrasonography characteristics of patients with spontaneous, nonaneurysmal subarachnoid hemorrhage (SNSAH), and analyze their short- term ...
Mohan R. Sharma , Gerald A. Grant , Heather A. Nicoletto , Colleen M. Douville , David W. Newell   +4 more
doaj   +1 more source

Transcranial doppler re-screening of subjects who participated in STOP and STOP II. [PDF]

, 2016
In children with Sickle Cell Disease, the combination of risk stratification with Transcranial Doppler Ultrasound (TCD) and selective chronic red cell transfusion (CRCT-the STOP Protocol) is one of the most effective stroke prevention strategies in ...
Adams, Robert J, Brown, David, Brown, Lynette, Fullerton, Heather J, Kanter, Julie, Kwiatkowski, Janet L, Lackland, Dan T, Voeks, Jenifer   +7 more
core   +2 more sources

Cerebral haemodynamic responses to inspiratory muscle work

Experimental Physiology, EarlyView.
Abstract Fatiguing inspiratory work has been shown to evoke a sympathetically mediated reflex that has systemic cardiovascular consequences, including increases in heart rate and blood pressure and a decrease in resting limb vascular conductance. Moreover, the response to this reflex appears to be attenuated in females compared with males.
Andrew H. Ramsook, Morgan A. Hughes, Wyatt W. Pruter, Kevin L. Webb, Ali Ataie, Chad C. Wiggins, Gabrielle A. Dillon, Sarah E. Baker, Michael J. Joyner   +8 more
wiley   +1 more source

Diagnostic significance of transcranial Doppler ultrasonography in patients with subarachnoid hemorrhage and cerebral vasospasm [PDF]

Kosin Medical Journal
Background This study investigated the accuracy and usefulness of transcranial Doppler (TCD) ultrasonography as a diagnostic method in patients with subarachnoid hemorrhage (SAH) and cerebral vasospasm.
Jung Hyun Park
doaj   +1 more source

A New Methodology of Viewing Extra-Axial Fluid and Cortical Abnormalities in Children with Autism via Transcranial Ultrasonography [PDF]

, 2014
Background: Autism spectrum disorders (ASDs) are developmental conditions of uncertain etiology which have now affected more than 1% of the school-age population of children in many developed nations.
James Jeffrey Bradstreet, Marco Ruggiero, Stefania Pacini   +2 more
core   +1 more source

No difference in mean middle cerebral artery blood velocity responses between lower‐ and upper‐body unilateral resistance exercise in untrained individuals

Experimental Physiology, EarlyView.
Abstract Dynamic resistance exercise (RE) produces sinusoidal fluctuations in blood pressure that are mirrored by middle cerebral artery blood velocity (MCAv). However, whether lower‐ or upper‐body RE elicits a differential cerebrovascular response has not yet been examined.
Stephanie Korad, Toby Mündel, Blake G. Perry   +2 more
wiley   +1 more source

Evaluation of Cerebral Blood Flow Alterations and Acute Neuronal Damage due to Water-Pipe Smoking

Balkan Medical Journal, 2019
Background:Although water-pipe smoking is a great public health problem, data regarding the acute and chronic effects and the degree of toxin exposure are limited.
Onur Karakayalı, Uygar Utku, Serkan Yılmaz   +2 more
doaj   +1 more source