Results 71 to 80 of about 17,546 (218)

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

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

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

Contributions of vascular ageing to late‐onset Alzheimer's disease

Experimental Physiology, EarlyView.
Abstract Late‐onset Alzheimer's disease (LOAD) is an age‐related disease that is strongly associated with vascular risk factors and cerebrovascular impairments. As such, changes in the vasculature with advancing age likely contribute to LOAD, but the mechanisms underlying these contributions remain incompletely understood.
Skylyn J. Ferguson, Young Deanna Choi, Ashley E. Walker   +2 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

Impact of heat exposure during immobilization‐induced de‐training and re‐training on aerobic capacity and haemoglobin mass

Experimental Physiology, EarlyView.
Abstract The aim of this work was to assess the effect of heat exposure on cardiorespiratory and haematological responses during de‐training and re‐training. Nineteen men (33.8 ± 2.7 years; 182 ± 5.7 cm, 84.4 ± 9.3 kg) completed 4 weeks of pre‐training followed by heat exposure (HEAT; n = 9) or control (CON; n = 10).
Scott Cocking, Nathan Townsend, Mariem Labidi, Khouloud Mtibaa, Marine Alhammoud, Nada Nasir, Nelda Nader, Karim Khalladi, Claire Tourny, Abdulaziz Farooq, Sebastien Racinais   +10 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

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli, Juliene G. Costa, Kristanti W. Wigati, Jesse L. Criddle, Julie J. Collis, Xingwei Xu, Louise H. Naylor, Howard H. Carter, Shane K. Maloney, Robert A. McLaughlin, Andrew Haynes, Helen Jones, Keith George, Daniel J. Green   +13 more
wiley   +1 more source

Blistering barnacles: Space physiology in The Adventures of Tintin

Experimental Physiology, EarlyView.
Jacob P. Hartmann, Mathis B. Mottelson, Rasmus H. Dahl, Ronni R. Plovsing, Ronan M. G. Berg   +4 more
wiley   +1 more source

Cerebrovascular flow‐mediated dilation in humans: Methodological challenges, physiological interpretation and future integrations

Experimental Physiology, EarlyView.
Abstract Arterial shear‐mediated vasodilation is a well‐established measure of endothelial function and serves as a critical biomarker for cardiovascular disease risk. Endothelial function can be measured using a variety of experimental methodologies; however, the most widely adopted technique is ultrasound‐based flow‐mediated dilation (FMD), in which ...
Yi Zhen Bao, Tabitha V. Craig, Jenna C. McCrone, Kurt J. Smith, Michael M. Tymko   +4 more
wiley   +1 more source