Results 91 to 100 of about 3,313,018 (220)

Sport-Related Concussion Alters Indices of Dynamic Cerebral Autoregulation

Frontiers in Neurology, 2018
Sport-related concussion is known to affect a variety of brain functions. However, the impact of this brain injury on cerebral autoregulation (CA) is poorly understood. Thus, the goal of the current study was to determine the acute and cumulative effects
Alexander D. Wright, Alexander D. Wright, Alexander D. Wright, Alexander D. Wright, Jonathan D. Smirl, Kelsey Bryk, Sarah Fraser, Michael Jakovac, Paul van Donkelaar   +8 more
doaj   +1 more source

Brain strain: Blood flow and metabolism in environmental extremes

Experimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak, Damian M. Bailey, Travis D. Gibbons, Philip N. Ainslie   +3 more
wiley   +1 more source

Cerebral blood flow in conscious rats and implications for therapeutic interventions

Experimental Physiology, EarlyView.
Abstract Cerebral blood flow (CBF) often becomes compromised in patients suffering from cardiovascular diseases, increasing the risk of neurodegenerative disease and vascular dementia. There is an urgent need for treatments to address cardiovascular risk without compromising brain perfusion, yet the impact of many existing treatments on CBF are not ...
Tonja W. Emans, Courtney R. Brighouse, Jack T. Sloan, Fiona D. McBryde   +3 more
wiley   +1 more source

EEG and cerebral blood flow in newborns during quiet sleep

, 2008
Cerebral blood flow (CBF) alterations in the newborns (NB) can lead to brain damage by adecrease in the supply of oxygen and glucose. Aiming at contributing to an understanding of themechanisms involved, the association between the EEG (right front ...
Maldonado Arango, M.I., Infantosi, A.F.C., Simpson, D.M., Botero Rosas, D.A.   +3 more
core   +1 more source

Is resting muscle sympathetic nerve activity related to peripheral or cerebrovascular haemodynamics at high altitude? A retrospective analysis

Experimental Physiology, EarlyView.
Abstract High‐altitude hypoxia elicits several profound physiological responses, including substantial increases in muscle sympathetic nerve activity (MSNA); however, the association of this heightened MSNA with cardiovascular and cerebrovascular haemodynamics remains unclear in lowlanders and indigenous highlander populations.
Ty J. A. MacDonald, Jenna C. McCrone, Christabel Osei‐Boateng, Connor D. Wideman, Samantha L. Tsioros, Joshua C. Tremblay, Alexander Patrician, Connor A. Howe, Geoff B. Coombs, Benjamin S. Stacey, Lydia L. Simpson, Mike Stembridge, Craig D. Steinback, Jonathan P. Moore, Travis D. Gibbons, Ryan L. Hoiland, Francisco Villafuerte, Gilbert Moralez, Philip N. Ainslie, Michael M. Tymko   +19 more
wiley   +1 more source

Compartmental and Data-Based Modeling of Cerebral Hemodynamics: Linear Analysis

IEEE Access, 2015
Compartmental and data-based modeling of cerebral hemodynamics are alternative approaches that utilize distinct model forms and have been employed in the quantitative study of cerebral hemodynamics.
Brandon C. Henley, Dae C. Shin, Rong Zhang, Vasilis Z. Marmarelis   +3 more
doaj   +1 more source

Stroke neurovascular responses to exercise: A novel rehabilitation paradigm

Experimental Physiology, EarlyView.
Abstract Stroke is a leading cause of long‐term disability, impacting the cerebrovascular, peripheral vascular and neuromotor systems. Characterising vascular responses to exercise post‐stroke offers valuable insights into the impairments that might influence outcomes during neurorehabilitation.
Alicen A. Whitaker‐Hilbig, Allison S. Hyngstrom, Matthew J. Durand   +2 more
wiley   +1 more source

Transcranial doppler assessment of cerebral autoregulation

, 2009
Cerebral autoregulation describes the process by which cerebral blood flow is maintained despite fluctuations in cerebral perfusion pressure. The assessment of cerebral autoregulation is a key to the optimisation of cerebral perfusion pressure in ...
Fraser, J. F., Bellapart, J.
core   +1 more source

Applying time-frequency analysis to assess cerebral autoregulation during hypercapnia.

PLoS ONE, 2017
ObjectiveClassic methods for assessing cerebral autoregulation involve a transfer function analysis performed using the Fourier transform to quantify relationship between fluctuations in arterial blood pressure (ABP) and cerebral blood flow velocity ...
Michał M Placek, Paweł Wachel, D Robert Iskander, Peter Smielewski, Agnieszka Uryga, Arkadiusz Mielczarek, Tomasz A Szczepański, Magdalena Kasprowicz   +7 more
doaj   +1 more source

Thermoregulatory and plasma neurobiomarker responses to heat tolerance assessment in exertional heat illness and matched controls

Experimental Physiology, EarlyView.
Abstract Exercise in the heat and elevated tissue temperature are associated with neuronal stress and changes in blood–brain barrier (BBB) function. More severe thermal insult may manifest as exertional heat illness (EHI) and complication by central nervous system (CNS) dysfunction may persist post‐EHI.
Tom W. Palin, Jo Corbett, Lisa J. Hill, David R. Woods, Alex A. M. Gould, Barney Wainwright, James A. Roberts, Chloe N. Thomas, Daniel Snape, Carol House, Omar Tayari, Richard J. Elsworthy, James L. Mitchell, Andrew J. Roberts, John P. O'Hara, Michael J. Stacey   +15 more
wiley   +1 more source