Results 11 to 20 of about 5,939,519 (302)

Preliminary study on the cerebral blood flow regulation function in migraine patients using transcranial Doppler ultrasound [PDF]

Frontiers in Neurology
ObjectiveTo assess the cerebral blood flow regulation function in migraine patients using transcranial Doppler (TCD), and to explore the potential mechanism behind the increased risk of cerebral infarction in migraine patients.MethodsCompare cerebral ...
Yanan Zhang, Hongling Zhao, Furong Li, Junmin Tao, Xin Pan, Shuhan Liu, Weiwei Dong   +6 more
doaj   +2 more sources

Regulation of Cerebral Blood Flow [PDF]

International Journal of Vascular Medicine, 2011
The control of cerebral blood flow is complex, and only beginning to be elucidated. Studies have identified three key regulatory paradigms. The first is cerebral pressure autoregulation, which maintains a constant flow in the face of changing cerebral ...
Eric C. Peterson, Zhengfeng Wang, Gavin Britz   +2 more
doaj   +3 more sources

Fetal Cerebral Blood Flow (Dys)autoregulation [PDF]

Diagnostics
Background: As an extremely sensitive organ, particularly during in utero development, the brain has intrinsic systems to reduce the risk of cerebral damage in cases of insult, such as energy deprivation, due to a mechanism of positive balance in ...
Cristiana Moreira, Luís Guedes-Martins
doaj   +2 more sources

Towards a physics informed digital twin to predict cerebral blood flow and cerebral vascular regulation [PDF]

npj Digital Medicine
Cerebral blood flow is essential for brain function and is governed by cerebral perfusion pressure and physiological mechanisms collectively referred to as cerebral vascular regulation (CVR).
Jennifer K. Briggs, J. N. Stroh, Soojin Park, Brandon Foreman, Michael M. Tymko, Jay Carr, Melike Sirlanci, Philip N. Ainslie, Richard K. P. Benninger, Tellen D. Bennett, David J. Albers   +10 more
doaj   +2 more sources

Nimodipine augments cerebrovascular reactivity in aging but runs the risk of local perfusion reduction in acute cerebral ischemia

Frontiers in Aging Neuroscience, 2023
IntroductionThe efficacy of cerebrovascular reactivity (CVR) is taken as an indicator of cerebrovascular health.Methods and ResultsWe found that CVR tested with the inhalation of 10 % CO2 declined in the parietal cortex of 18-20-month-old rats.
Szilvia Kecskés, Szilvia Kecskés, Ákos Menyhárt, Ákos Menyhárt, Ferenc Bari, Eszter Farkas, Eszter Farkas   +6 more
doaj   +1 more source

On the Normalization of Cerebral Blood Flow [PDF]

Journal of Cerebral Blood Flow & Metabolism, 2013
Cerebral blood flow (CBF) is the most common parameter for the quantification of brain's function. Literature data indicate a widespread dispersion of values that might be related to some differences in the measurement conditions that are not properly taken into account in CBF evaluation.
Guibert, Romain, Fonta, Caroline, Estève, François, Plouraboué, Franck   +3 more
openaire   +5 more sources

Cerebral blood flow response to hypoglycemia is altered in patients with type 1 diabetes and impaired awareness of hypoglycemia

, 2022
S.1994-2001It is unclear whether cerebral blood flow responses to hypoglycemia are altered in people with type 1 diabetes and impaired awareness of hypoglycemia.
Becker, K.M., Heerschap, A., Tack, C.J., Rooijackers, H.M., Samson-Himmelstjerna, F.C. von, Graaf, M. van der, Galan, B.E. de, Wiegers, E.C.   +7 more
core   +2 more sources

Cerebral blood flow velocity is associated with endothelial function in men [PDF]

Journal of Men's Health, 2021
Background and objective: Reduction in cerebral blood flow with aging leads to cognitive decline and brain atrophy. Cerebrovascular hemodynamics are associated with vascular function.
Nobuhiko Akazawa, Hiroshi Kumagai, Toru Yoshikawa, Kanae Myoenzono, Koichiro Tanahashi, Seiji Maeda   +5 more
doaj   +1 more source

Cerebral blood flow and behavioural effects of caffeine in habitual and non-habitual consumers of caffeine: A near infrared spectroscopy study [PDF]

, 2011
Caffeine has been shown to modulate cerebral blood flow, with little evidence of tolerance to these effects following habitual use. However, previous studies have focused on caffeine levels much higher than those found in dietary servings and have ...
Haskell, Crystal, Crystal F. Haskell, Kennedy, David, David O. Kennedy   +3 more
core   +1 more source

Nonlinear, multiple-input modeling of cerebral autoregulation using Volterra Kernel estimation [PDF]

, 2010
Autoregulation refers to the automatic adjustment of blood flow to supply the required oxygen and glucose and remove waste, in proportion to the tissue’s requirement at any instant of time.
Allen, Robert, Simpson, David Martin, Kouchakpour, Hasam   +2 more
core   +2 more sources