Regulation of cerebral blood flow in humans: physiology and clinical implications of autoregulation

JAHR Claassen, DHJ Thijssen… - Physiological …, 2021 - journals.physiology.org
Brain function critically depends on a close matching between metabolic demands,
appropriate delivery of oxygen and nutrients, and removal of cellular waste. This matching …

Transfer function analysis of dynamic cerebral autoregulation: a CARNet white paper 2022 update

RB Panerai, P Brassard, JS Burma… - Journal of Cerebral …, 2023 - journals.sagepub.com
Cerebral autoregulation (CA) refers to the control of cerebral tissue blood flow (CBF) in
response to changes in perfusion pressure. Due to the challenges of measuring intracranial …

HIITing the brain with exercise: mechanisms, consequences and practical recommendations

TA Calverley, S Ogoh, CJ Marley… - The Journal of …, 2020 - Wiley Online Library
The increasing number of older adults has seen a corresponding growth in those affected by
neurovascular diseases, including stroke and dementia. Since cures are currently …

Effects of age and sex on middle cerebral artery blood velocity and flow pulsatility index across the adult lifespan

MR Alwatban, SE Aaron, CS Kaufman… - Journal of Applied …, 2021 - journals.physiology.org
Reduced middle cerebral artery blood velocity (MCAv) and flow pulsatility are contributors to
age-related cerebrovascular disease pathogenesis. It is unknown whether the rate of …

Quantification of dynamic cerebral autoregulation: welcome to the jungle!

P Brassard, MA Roy, JS Burma, L Labrecque… - Clinical Autonomic …, 2023 - Springer
Purpose Patients with dysautonomia often experience symptoms such as dizziness,
syncope, blurred vision and brain fog. Dynamic cerebral autoregulation, or the ability of the …

Dynamic cerebral autoregulation across the cardiac cycle during 8 hr of recovery from acute exercise

JS Burma, P Copeland, A Macaulay… - Physiological …, 2020 - Wiley Online Library
Current protocols examining cerebral autoregulation (CA) parameters require participants to
refrain from exercise for 12–24 hr, however there is sparse objective evidence examining …

Comparison of diurnal variation, anatomical location, and biological sex within spontaneous and driven dynamic cerebral autoregulation measures

JS Burma, P Copeland, A Macaulay… - Physiological …, 2020 - Wiley Online Library
Presently, the literature describing the influence of diurnal variation on dynamic cerebral
autoregulation (dCA) metrics is sparse. Additionally, there is little data with respect to dCA …

Reproducibility and diurnal variation of the directional sensitivity of the cerebral pressure-flow relationship in men and women

L Labrecque, JS Burma, MA Roy… - Journal of Applied …, 2022 - journals.physiology.org
The cerebral pressure-flow relationship has directional sensitivity, meaning the
augmentation in cerebral blood flow is attenuated when mean arterial pressure (MAP) …

Directional sensitivity of the cerebral pressure–flow relationship in young healthy individuals trained in endurance and resistance exercise

MA Roy, L Labrecque, BG Perry, S Korad… - Experimental …, 2022 - Wiley Online Library
New Findings What is the central question of this study? Does habitual exercise modality
affect the directionality of the cerebral pressure–flow relationship? What is the main finding …

Utilization of the repeated squat-stand model for studying the directional sensitivity of the cerebral pressure-flow relationship

L Labrecque, JD Smirl… - Journal of Applied …, 2021 - journals.physiology.org
Hysteresis in the cerebral pressure-flow relationship describes the superior ability of the
cerebrovasculature to buffer cerebral blood flow changes when mean arterial pressure …