Results 21 to 30 of about 11,240,256 (401)
Frontiers in Physiology, 2019 Blood viscosity is an important determinant of local flow characteristics, which exhibits shear thinning behavior: it decreases exponentially with increasing shear rates. Both hematocrit and plasma viscosity influence blood viscosity.
E. Nader +13 more
semanticscholar +1 more source
Magnetohydrodynamics of blood flow [PDF]
Magnetic Resonance in Medicine, 1990 AbstractThe changes in hydrostatic pressure and electrical potentials across vessels in the human vasculature in the presence of a large static magnetic field are estimated to determine the feasibility of in vivo NMR spectroscopy at fields as high as 10 T.
Keltner, J.R. +3 more
openaire +3 more sources
Pulsatile spiral blood flow through arterial stenosis [PDF]
, 2014 Pulsatile spiral blood flow in a modelled three-dimensional arterial stenosis, with a 75% cross-sectional area reduction, is investigated by using numerical fluid dynamics.
Hyde, M.A., Linge, F., Paul, M.C.
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Nature Neuroscience, 2018 Cerebral blood flow (CBF) reductions in Alzheimer’s disease patients and related mouse models have been recognized for decades, but the underlying mechanisms and resulting consequences for Alzheimer’s disease pathogenesis remain poorly understood. In APP/
J. C. Cruz Hernández +25 more
semanticscholar +1 more source
Renal pericytes: regulators of medullary blood flow [PDF]
, 2012 Regulation of medullary blood flow (MBF) is essential in maintaining normal kidney function. Blood flow to the medulla is supplied by the descending vasa recta (DVR), which arise from the efferent arterioles of juxtamedullary glomeruli.
Agmon Y. +27 more
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Blood, 2018 Silent cerebral infarcts (SCIs) are associated with cognitive impairment in sickle cell anemia (SCA). SCI risk factors include low hemoglobin and elevated systolic blood pressure; however, mechanisms underlying their development are unclear.
A. Ford +10 more
semanticscholar +1 more source
Microstructured Thin Film Nitinol for a Neurovascular Flow-Diverter [PDF]
, 2016 A cerebral aneurysm occurs as a result of a weakened blood vessel, which allows blood to flow into a sac or a ballooned section. Recent advancement shows that a new device, ‘flow-diverter’, can divert blood flow away from the aneurysm sac.
Chen, Yanfei +5 more
core +2 more sources
Effects of anesthesia on cerebral blood flow, metabolism, and neuroprotection
Journal of Cerebral Blood Flow and Metabolism, 2018 Administration of anesthetic agents fundamentally shifts the responsibility for maintenance of homeostasis from the patient and their intrinsic physiological regulatory mechanisms to the anesthesiologist.
Andrew M. Slupe, J. Kirsch
semanticscholar +1 more source
Pericyte-mediated regulation of capillary diameter: a component of neurovascular coupling in health and disease [PDF]
, 2010 Because regional blood flow increases in association with the increased metabolic demand generated by localised increases in neural activity, functional imaging researchers often assume that changes in blood flow are an accurate read-out of changes in ...
Attwell, D., Hall, C.N., Hamilton, N.B.
core +3 more sources
Capillary K+-sensing initiates retrograde hyperpolarization to locally increase cerebral blood flow
Nature Neuroscience, 2017 Blood flow into the brain is dynamically regulated to satisfy the changing metabolic requirements of neurons, but how this is accomplished has remained unclear. Here we demonstrate a central role for capillary endothelial cells in sensing neural activity
T. Longden +7 more
semanticscholar +1 more source