Results 51 to 60 of about 3,313,018 (220)

Cerebral Autoregulation in Ischemic Stroke: From Pathophysiology to Clinical Concepts

open access: yesBrain Sciences, 2021
Ischemic stroke (IS) is one of the most impacting diseases in the world. In the last decades, new therapies have been introduced to improve outcomes after IS, most of them aiming for recanalization of the occluded vessel.
Ricardo C. Nogueira   +4 more
doaj   +1 more source

Melatonin does not attenuate dynamic cardiovascular and cerebrovascular reflex responses to acute hypotension in healthy men [PDF]

open access: yesKorean Journal of Anesthesiology, 2012
BackgroundMelatonin has been shown to attenuate the reflex sympathetic increases that arise in response to orthostatic challenges. We tested the hypothesis that the attenuated sympathetic increase induced by melatonin premedication may weaken the ...
Jiyoun Bang   +5 more
doaj   +1 more source

Cerebral Dynamics of Autoregulation and Hypoperfusion [PDF]

open access: yesStroke, 2000
To the Editor: The article by Zaharchuk et al1 raises a series of questions. First, the authors are careful to delineate many problems concerning interpretation of data gathered with the BOLD technique and the variations they employ. These limitations might help explain some of the difference between the microvascular versus the global cerebral ...
openaire   +1 more source

Cerebral artery dilatation maintains cerebral oxygenation at extreme altitude and in acute hypoxia : an ultrasound and MRI study [PDF]

open access: yes, 2011
Transcranial Doppler is a widely used noninvasive technique for assessing cerebral artery blood flow. All previous high altitude studies assessing cerebral blood flow (CBF) in the field that have used Doppler to measure arterial blood velocity have ...
Hirani, Shashivadan P.   +61 more
core   +1 more source

Dynamic cerebral autoregulation after confinement in an isolated environment for 14 days

open access: yesEnvironmental Health and Preventive Medicine, 2018
Background To develop human space exploration, it is necessary to study the effects of an isolated and confined environment, as well as a microgravity environment, on cerebral circulation.
Tomokazu Kato   +8 more
doaj   +1 more source

Dynamic Cerebral Autoregulation in Homozygous Sickle Cell Disease [PDF]

open access: yesStroke, 2009
Background and Purpose— Sickle cell disease (SCD) is associated with cerebral hyperperfusion and an increased risk of stroke. Also, both recurrent microvascular obstruction and chronic hemolysis affect endothelial function, potentially interfering with systemic and cerebral blood flow control.
Kim, Yu-Sok   +6 more
openaire   +4 more sources

Engineered Xenogeneic Bone Scaffold with IL‐10 Nanodelivery System: Immunomodulation and BMSC Fate Programming for Skull Defect Repair

open access: yesAdvanced Science, EarlyView.
A multifunctional regenerative composite is constructed by 3D‐printing thermosensitive PNIPAM hydrogel embedded with MPDA@IL‐10 nanoparticles and autologous BMSCs onto antigen‐depleted porcine bone matrix for beagle critical‐sized skull defect reconstruction.
Weihao Lv   +16 more
wiley   +1 more source

N‐Terminal Pro Brain, N‐Terminal Pro Atrial Natriuretic Peptides, and Dynamic Cerebral Autoregulation

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Elevated natriuretic peptides (NP) are associated with adverse cerebrovascular conditions including stroke, cerebral small vessel disease, and dementia. However, the mechanisms underlying these associations remain unclear.
Simin Mahinrad   +4 more
doaj   +1 more source

Ventricular Volume Load Reveals the Mechanoelastic Impact of Communicating Hydrocephalus on Dynamic Cerebral Autoregulation. [PDF]

open access: yesPLoS ONE, 2016
Several studies have shown that the progression of communicating hydrocephalus is associated with diminished cerebral perfusion and microangiopathy. If communicating hydrocephalus similarly alters the cerebrospinal fluid circulation and cerebral blood ...
Christina Haubrich   +4 more
doaj   +1 more source

Agreement between invasive and oscillometric blood pressure measurements during controlled haemorrhage in anaesthetised horses

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Defining the reliability of oscillometry (NIBP) for measuring mean arterial pressure (MAP) during normotension and hypovolaemic hypotension could help with cardiovascular monitoring and management in horses anaesthetised in dorsal recumbency.
Colleen Hickey   +6 more
wiley   +1 more source

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