Results 91 to 100 of about 34,817 (254)

Linking dynamic cerebral autoregulation and inhibitory executive function: Role of modifiable behaviours

Experimental Physiology, EarlyView.
Abstract Dynamic cerebral autoregulation (dCA) stabilises cerebral blood flow (CBF) against rapid fluctuations in perfusion pressure and may serve as a key physiological mediator of cognitive function. Inhibitory executive function, a core domain essential for goal‐directed behaviour, is influenced by modifiable lifestyle factors such as physical ...
Hayato Tsukamoto, Damian M. Bailey
wiley   +1 more source

Acute exercise‐induced improvements in cognition: Role of cerebral blood flow and metabolism

Experimental Physiology, EarlyView.
Abstract Physical activity is widely recognized for its ability to promote brain health, with acute exercise transiently enhancing cognition and long‐term training attenuating cognitive decline. However, the mechanisms underlying these benefits remain incompletely understood.
Takeshi Hashimoto, Shigehiko Ogoh
wiley   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source

A lumped parameter modelling study of cerebral autoregulation in normal pressure hydrocephalus suggests the brain chooses to be ischemic

Scientific Reports
Normal pressure hydrocephalus (NPH) is associated with a reduction in cerebral blood flow and an ischemic metabolic state. Ischemia should exhaust the available autoregulation in an attempt to correct the metabolic imbalance.
Grant Alexander Bateman, Alexander Robert Bateman   +1 more
doaj   +1 more source

Multi-Modal Assessment of Cerebral Hemodynamics in Resuscitated Out-of-Hospital Cardiac Arrest Patients: A Case-Series

Life
We assessed the feasibility of concurrent monitoring of cerebral hemodynamics in adult, comatose out-of-hospital cardiac arrest (OHCA) patients admitted to the National University Heart Centre Singapore from October 2021 to August 2023.
Shir Lynn Lim, May Zin Myint, Kai Lee Woo, Elaine Young Heng Chee, Chiew Sie Hong, Erta Beqiri, Peter Smielewski, Marcus Eng Hock Ong, Vijay Kumar Sharma   +8 more
doaj   +1 more source

Comparison of frequency and time domain methods of assessment of cerebral autoregulation in traumatic brain injury. [PDF]

, 2014
The impulse response (IR)-based autoregulation index (ARI) allows for continuous monitoring of cerebral autoregulation using spontaneous fluctuations of arterial blood pressure (ABP) and cerebral flow velocity (FV).
Brady, Ken M, Budohoski, Karol P, Czosnyka, Marek, Donnelly, Joseph, Hutchinson, Peter J, Liu, Xiuyun, Nasr, Nathalie, Reinhard, Matthias, Smielewski, Peter, Varsos, Georgios V   +9 more
core   +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

Serum Levels of Brain-Derived Neurotrophic Factor and Insulin-Like Growth Factor 1 Are Associated With Autonomic Dysfunction and Impaired Cerebral Autoregulation in Patients With Epilepsy

Frontiers in Neurology, 2018
Background: Brain-derived neurotrophic factor (BDNF) and insulin-like growth factor 1 (IGF-1) may regulate the autonomic nervous system (ANS) in epilepsy.
Shu-Fang Chen, Shuo-Bin Jou, Nai-Ching Chen, Hung-Yi Chuang, Chi-Ren Huang, Meng-Han Tsai, Teng-Yeow Tan, Wan-Chen Tsai, Chiung-Chih Chang, Yao-Chung Chuang, Yao-Chung Chuang, Yao-Chung Chuang, Yao-Chung Chuang   +12 more
doaj   +1 more source

A simple deep breathing test reveals altered cerebral autoregulation in type 2 diabetic patients [PDF]

, 2018
Aims/hypothesis: Patients with diabetes mellitus have an increased risk of stroke and other cerebrovascular complications. The purpose of this study was to evaluate the autoregulation of cerebral blood flow in diabetic patients using a simple method that
Brown, C., Hilz, M., Marthol, H., Ziegler, D., Zikeli, U.   +4 more
core  

Measurement of Intraspinal Pressure After Spinal Cord Injury: Technical Note from the Injured Spinal Cord Pressure Evaluation Study. [PDF]

, 2016
Intracranial pressure (ICP) is routinely measured in patients with severe traumatic brain injury (TBI). We describe a novel technique that allowed us to monitor intraspinal pressure (ISP) at the injury site in 14 patients who had severe acute traumatic ...
Bell, BA, Czosnyka, M, Czosnyka, Z, Jamous, A, Papadopoulos, MC, Phang, I, Saadoun, S, Smielewski, P, Varsos, G, Werndle, MC, Zoumprouli, A   +10 more
core   +1 more source