Differential contribution of cyclooxygenase to basal cerebral blood flow and hypoxic cerebral vasodilation

JM Kellawan, GL Peltonen, JW Harrell… - American Journal …, 2020 - journals.physiology.org
Cyclooxygenase (COX) is proposed to regulate cerebral blood flow (CBF); however,
accurate regional contributions of COX are relatively unknown at baseline and particularly …

Reactive oxygen species and cyclooxygenase products explain the majority of hypoxic cerebral vasodilation in healthy humans

JW Harrell, GL Peltonen, WG Schrage - Acta Physiologica, 2019 - Wiley Online Library
Aim The role of reactive oxygen species (ROS) in human cerebral blood flow (CBF) during
hypoxia is largely unknown. Additionally, it is unknown whether ROS interact with …

Cerebrovascular regulation in men and women: stimulus‐specific role of cyclooxygenase

GL Peltonen, JW Harrell, CL Rousseau… - Physiological …, 2015 - Wiley Online Library
Greater cerebral artery vasodilation mediated by cyclooxygenase (COX) in female animals
is unexplored in humans. We hypothesized that young, healthy women would exhibit greater …

Cyclooxygenase-1 participates in selected vasodilator responses of the cerebral circulation

K Niwa, C Haensel, ME Ross, C Iadecola - Circulation research, 2001 - Am Heart Assoc
Cyclooxygenase (COX) is a prostanoid-synthesizing enzyme present in 2 isoforms: COX-1
and COX-2. Although it has long been hypothesized that prostanoids participate in …

Additive effect of cyclooxygenase and nitric oxide synthase blockade on the cerebrocortical microcirculation

Z Lacza, L Hortobágyi, B Horváth, EM Horváth… - …, 2009 - journals.lww.com
The contribution of vasodilator cyclooxygenase (COX) metabolites to the maintenance of the
cerebrocortical blood flow (CBF) has been studied under physiological conditions and in …

Increased susceptibility to ischemic brain injury in cyclooxygenase-1–deficient mice

C Iadecola, K Sugimoto, K Niwa… - Journal of Cerebral …, 2001 - journals.sagepub.com
Cyclooxygenase-1 (COX-1), a rate-limiting enzyme in the synthesis of prostanoids, is
involved in selected vasodilatatory responses of the cerebral circulation. Cyclooxygenase-1 …

Carbon dioxide‐mediated vasomotion of extra‐cranial cerebral arteries in humans: a role for prostaglandins?

RL Hoiland, MM Tymko, AR Bain… - The Journal of …, 2016 - Wiley Online Library
Key points Cerebral blood flow increases during hypercapnia and decreases during
hypocapnia; it is unknown if vasomotion of the internal carotid artery is implicated in these …

Neurovascular Coupling in the Human Visual Cortex Is Modulated by Cyclooxygenase-1 (COX-1) Gene Variant

T Hahn, S Heinzel, MM Plichta, A Reif, KP Lesch… - Cerebral …, 2011 - academic.oup.com
Functional hyperemia, the brain's capability to alter microvascular blood flow in response to
the metabolic demands of active neurons, is essential for sustained mammalian brain …

Post-ischemic cyclooxygenase-2 expression is regulated by the extent of cerebral blood flow reduction in non-human primates

C Yokota, Y Kuge, H Inoue, M Tagaya, G Kito… - Neuroscience …, 2003 - Elsevier
We determined whether up to 24 h of ischemia could induce the expression of
cyclooxygenase-2 (COX-2) in the brain of nonhuman primates. Randomized animals were …

Modulatory role of cyclooxygenase-2 in cerebrovascular coupling

B Stefanovic, F Bosetti, AC Silva - Neuroimage, 2006 - Elsevier
To investigate the role of cyclooxygenase-2 (COX-2) in the cerebrovascular coupling,
hemodynamic and neuronal responses to forepaw stimulation were measured in α …