Results 91 to 100 of about 775,260 (336)
, 2012 Although the assessment of dynamic cerebral autoregulation (CA) based on measurements of spontaneous fluctuations in arterial blood pressure (ABP) and cerebral blood flow (CBF) is a convenient and much used method, there remains uncertainty about its ...
Allen, Robert +7 more
core +1 more source
Aquaporin-4 Functionality and Virchow-Robin Space Water Dynamics: Physiological Model for Neurovascular Coupling and Glymphatic Flow. [PDF]
, 2017 The unique properties of brain capillary endothelium, critical in maintaining the blood-brain barrier (BBB) and restricting water permeability across the BBB, have important consequences on fluid hydrodynamics inside the BBB hereto inadequately ...
Igarashi, Hironaka +3 more
core +1 more source
Cerebral Perfusion and Cerebral Autoregulation after Cardiac Arrest
BioMed Research International, 2018 Out of hospital cardiac arrest is the leading cause of death in industrialized countries. Recovery of hemodynamics does not necessarily lead to recovery of cerebral perfusion.
J.M.D. van den Brule +2 more
semanticscholar +1 more source
Dynamic cerebral autoregulation is intact in chronic kidney disease
Physiological Reports, 2022 Chronic Kidney Disease (CKD) patients experience an elevated risk for cerebrovascular disease. One factor that may contribute to this heightened risk is an impairment in dynamic cerebral autoregulation, the mechanism by which cerebral vessels modulate ...
Justin D. Sprick +4 more
doaj +1 more source
Frontiers in Neurology, 2022 The process of cerebral vessels regulating constant cerebral blood flow over a wide range of systemic arterial pressures is termed cerebral autoregulation (CA).
Amanjyot Singh Sainbhi +14 more
doaj +1 more source
Higher ventricular rate during atrial fibrillation relates to increased cerebral hypoperfusions and hypertensive events [PDF]
Scientific Reports, 9: 3779, 2019, 2019 Atrial fibrillation (AF) is associated with cognitive impairment/dementia, independently of clinical cerebrovascular events (stroke/TIA). One of the plausible mechanisms is the occurrence of AF-induced transient critical hemodynamic events; however, it is presently unknown, if ventricular response rate during AF may impact on cerebral hemodynamics.
arxiv +1 more source
International Journal of Gynecology &Obstetrics, EarlyView.Abstract Objective To compare differences in maternal hemodynamics, measured non‐invasively by impedance cardiography and mean arterial blood pressure (MAP)—at rest and with high‐intensity exercise—between pregnant women with corrected congenital heart disease (CHD) and low‐risk (LR) pregnant controls, and to correlate these findings with umbilical ...
Francois Dos Santos +3 more
wiley +1 more source
Journal of Cerebral Blood Flow and Metabolism, 2019 Dynamic cerebral autoregulation (dCA) has been shown to be impaired in cerebrovascular diseases, but there is a lack of consistency across different studies and the different metrics that have been proposed for assessment.
Kannakorn Intharakham +4 more
semanticscholar +1 more source
Modeling of negative autoregulated genetic networks in single cells [PDF]
Gene, Vol. 347, Issue 2, 14 March 2005, Pages 265-271, 2005 We discuss recent developments in the modeling of negative autoregulated genetic networks. In particular, we consider the temporal evolution of the population of mRNA and proteins in simple networks using rate equations. In the limit of low copy numbers, fluctuation effects become significant and more adequate modeling is then achieved using the master
arxiv +1 more source
Optimising the assessment of cerebral autoregulation from black box models
, 2014 Cerebral autoregulation (CA) mechanisms maintain blood flow approximately stable despite changes in arterial blood pressure. Mathematical models that characterise this system have been used extensively in the quantitative assessment of function ...
Angarita-Jaimes, N. +4 more
core +1 more source