Results 301 to 310 of about 259,881 (379)

Cerebral oxygen extraction across different exercise intensities: Role of arterial PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_2}}}$

Experimental Physiology, EarlyView.
Abstract Stability in cerebral oxygen extraction fraction (OEF) is typically determined by alterations in cerebral blood flow (CBF). At rest, arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$) and OEF exhibit a strong inverse relationship owing to the powerful influence of PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$
L. Madden Brewster, Travis Dylan Gibbons, Hannah Grace Caldwell, Connor A. Howe, Jennifer S. Duffy, Andrew R. Steele, Justin A. Monteleone, Jay M. J. R. Carr, Jodie Lauren Koep, Tenasia D. R. Monaghan, David B. MacLeod, Philip N. Ainslie   +11 more
wiley   +1 more source

Effect of lower perfusion pressures on cerebral impairment

The Journal of Thoracic and Cardiovascular Surgery, 1982
openaire   +2 more sources

Cerebral haemodynamic responses to inspiratory muscle work

Experimental Physiology, EarlyView.
Abstract Fatiguing inspiratory work has been shown to evoke a sympathetically mediated reflex that has systemic cardiovascular consequences, including increases in heart rate and blood pressure and a decrease in resting limb vascular conductance. Moreover, the response to this reflex appears to be attenuated in females compared with males.
Andrew H. Ramsook, Morgan A. Hughes, Wyatt W. Pruter, Kevin L. Webb, Ali Ataie, Chad C. Wiggins, Gabrielle A. Dillon, Sarah E. Baker, Michael J. Joyner   +8 more
wiley   +1 more source

HAMPAO-SPECT of the brain and ocular microangiopathic syndrome in patients infected with the human immunodeficiency virus type 1 [PDF]

, 1993
Bogner, Johannes R., Einhäupl, Karl Max, Geier, Stephan A., Goebel, Frank-Detlef, Hammel, Gertrud, Sadri, Ifna, Schielke, Eva, Tatsch, Klaus   +7 more
core  

No difference in mean middle cerebral artery blood velocity responses between lower‐ and upper‐body unilateral resistance exercise in untrained individuals

Experimental Physiology, EarlyView.
Abstract Dynamic resistance exercise (RE) produces sinusoidal fluctuations in blood pressure that are mirrored by middle cerebral artery blood velocity (MCAv). However, whether lower‐ or upper‐body RE elicits a differential cerebrovascular response has not yet been examined.
Stephanie Korad, Toby Mündel, Blake G. Perry   +2 more
wiley   +1 more source

Effects of Endovascular Interventional Therapy at Different Stages on Blood Pressure and Cerebral Blood Flow Perfusion in Patients with Ruptured Hunt-Hess High-Grade Intracranial Aneurysms

Renjie Xie, W Zhang, Yuting Chen, Xiaotian Li, Qimin Wang, Xuan Zhou   +5 more
openalex   +2 more sources

Microelectrode recordings from the human cervical vagus nerve during maximal breath‐holds

Experimental Physiology, EarlyView.
Abstract Voluntary breath‐holds can be sustained for a long time following training, but ultimately, regardless of duration, the asphyxic break‐point is reached and the apnoea terminated. The physiological changes occurring during the apnoea include a marked increase in sympathetically‐mediated vasoconstriction in non‐essential organs, such as skeletal
Vaughan G. Macefield, Anthony R. Bain, Matthew I. Badour, Marko Kumric, Ivan Drvis, Otto F. Barak, Josko Bozic, Zeljko Dujic   +7 more
wiley   +1 more source

Caffeine in cerebrovascular research: To withdraw or not to withdraw?

Experimental Physiology, EarlyView.
Brooke R. Shepley, Kevin J. Milne, Anthony Richard Bain   +2 more
wiley   +1 more source

Interventions on arterial pressure and perfusion flow rate during cardiopulmonary bypass : effects on global fluid shifts, cerebral metabolic and structural markers in a porcine model

, 2008
Oddbjørn Haugen
openalex   +1 more source

From blood flow to organ function: The physiology of autoregulatory dynamics

Experimental Physiology, EarlyView.
Niels‐Henrik Holstein‐Rathlou, Donald J. Marsh   +1 more
wiley   +1 more source