Evidence map›Paper›PMID 31868517›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2020

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

J Mikhail Kellawan, Garrett L Peltonen, John W Harrell, Alejandro Roldan-Alzate, Oliver Wieben, William G Schrage

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
1.1field-weighted citation impact, top 22% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. 4D flow MRI for non-invasive measurement of blood flow in the brain: A systematic review.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021
    Pooled it
  3. Trial
  4. Sex differences in gray matter, white matter, and regional brain perfusion in young, healthy adults.American journal of physiology. Heart and circulatory physiology · 2024
    Article
  5. Hif1α-dependent mitochondrial acute ONature communications · 2024
    Article
  6. Article
  7. Article
  8. An oral glucose tolerance test does not affect cerebral blood flow: role of NOS.American journal of physiology. Regulatory, integrative and comparative physiology · 2023
    Article
  9. Hemoglobin and cerebral hypoxic vasodilation in humans: Evidence for nitric oxide-dependent andJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
  10. Article
  11. Article
  12. Astrocyte regulation of cerebral blood flow during hypoglycemia.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
    Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

J Mikhail KellawanDepartment of Kinesiology, University of Wisconsin, Madison, Wisconsin.ORCID 0000-0001-7889-8146
Garrett L PeltonenDepartment of Kinesiology, University of Wisconsin, Madison, Wisconsin.
John W HarrellDepartment of Kinesiology, University of Wisconsin, Madison, Wisconsin.
Alejandro Roldan-AlzateDepartment of Radiology, University of Wisconsin, Madison, Wisconsin.
Oliver WiebenDepartment of Medical Physics, University of Wisconsin, Madison, Wisconsin.
William G SchrageDepartment of Kinesiology, University of Wisconsin, Madison, Wisconsin.
University of Wisconsin–Madison · US

Funding

University of Wisconsin Institute for Clinical and Translational ResearchUL1TR002373 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI ELIZABETH S BURNSIDE, Allan R. Brasier · 2017 to 2026
$75.9M
Institutional Clinical and Translational Science AwardUL1TR000427 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI DREZNER, MARC KENNETH · 2012 to 2016
$32.2M
NCATS NIH HHS UL1 TR000427NCATS NIH HHS UL1 TR002373
6 · The paper itself

Abstract

Cyclooxygenase (COX) is proposed to regulate cerebral blood flow (CBF); however, accurate regional contributions of COX are relatively unknown at baseline and particularly during hypoxia. We hypothesized that COX contributes to both basal and hypoxic cerebral vasodilation, but COX-mediated vasodilation is greater in the posterior versus anterior cerebral circulation. CBF was measured in 9 healthy adults (28 ± 4 yr) during normoxia and isocapnic hypoxia (fraction of inspired oxygen = 0.11), with COX inhibition (oral indomethacin, 100mg) or placebo. Four-dimensional flow magnetic resonance imaging measured cross-sectional area (CSA) and blood velocity to quantify CBF in 11 cerebral arteries. Cerebrovascular conductance (CVC) was calculated (CVC = CBF × 100/mean arterial blood pressure) and hypoxic reactivity was expressed as absolute and relative change in CVC [ΔCVC/Δ pulse oximetry oxygen saturation (

Indexed as

Cerebrovascular CirculationVasodilationAdultBiomarkersBlood Flow VelocityCerebral ArteriesCyclooxygenase InhibitorsDouble-Blind MethodFemaleHumansHypoxiaIndomethacinMaleOxygenProstaglandin-Endoperoxide SynthasesRandom AllocationBiomarkersCyclooxygenase InhibitorsIndomethacinOxygenProstaglandin-Endoperoxide Synthasesbrain blood flowlow oxygenMRIphase contrastregional CBF

Identifiers

PMID31868517
PMCPMC7199240
OpenAlexW2997661131

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.