Evidence map›Paper›PMID 40996064›Full record

ArticleJournal of the American Heart Association2025

Effect of Phenylephrine on Cerebrovascular Regulation: A Translational Perspective.

Adam M S Luchkanych, Breanna Barlage, Gabriela Delgado, Jude S Morton, Cameron J Morse, Erika M Boerman, Ryan L Hoiland, Mypinder S Sekhon, Michael M Tymko, Jaume Padilla and 4 more

Abstract read
In one paragraph

Article in Journal of the American Heart Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

14 authors.

Adam M S LuchkanychDepartment of Biomedical Sciences, Western College of Veterinary Medicine University of Saskatchewan Saskatoon SK Canada.ORCID 0009-0003-0201-0528
Breanna BarlageDepartment of Biomedical Sciences, Western College of Veterinary Medicine University of Saskatchewan Saskatoon SK Canada.
Gabriela DelgadoDepartment of Biomedical Sciences, Western College of Veterinary Medicine University of Saskatchewan Saskatoon SK Canada.
Jude S MortonDepartment of Biomedical Sciences, Western College of Veterinary Medicine University of Saskatchewan Saskatoon SK Canada.ORCID 0009-0004-7572-7041
Cameron J MorseDepartment of Biomedical Sciences, Western College of Veterinary Medicine University of Saskatchewan Saskatoon SK Canada.ORCID 0000-0001-7120-0745
Erika M BoermanDepartment of Medical Physiology and Pharmacology University of Missouri Columbia MO USA.ORCID 0000-0001-8103-3485
Ryan L HoilandDepartment of Cellular and Physiological Sciences, Faculty of Medicine University of British Columbia Vancouver BC Canada.ORCID 0000-0002-5657-0059
Mypinder S SekhonDjavad Mowafaghian Centre for Brain Health, Faculty of Medicine University of British Columbia Vancouver BC Canada.ORCID 0000-0002-4487-301X
Michael M TymkoDepartment of Human Health and Nutritional Sciences, College of Biological Science University of Guelph Guelph Ontario Canada.
Jaume PadillaDepartment of Nutrition and Exercise Physiology University of Missouri Columbia MO USA.ORCID 0000-0002-7944-4936
Craig A EmterDept. Biomedical Science, College of Veterinary Medicine University of Missouri Columbia MO USA.ORCID 0000-0003-1251-591X
Corey R TomczakCollege of Kinesiology University of Saskatchewan Saskatoon SK Canada.ORCID 0000-0002-8182-6466
M Harold LaughlinDept. Biomedical Science, College of Veterinary Medicine University of Missouri Columbia MO USA.
T Dylan OlverDepartment of Biomedical Sciences, Western College of Veterinary Medicine University of Saskatchewan Saskatoon SK Canada.ORCID 0000-0003-1263-680X

Funding

Vascular Insulin Resistance in Obesity: Role of Endoplasmic Reticulum StressK01HL125503 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI PADILLA, JAUME · 2015 to 2018
$564k
NHLBI NIH HHS K01 HL125503
6 · The paper itself

Abstract

backgroundPhenylephrine is an alpha 1-adrenergic receptor (α1R) agonist. Evidence indicates activation of α1Rs can initiate both vasoconstrictor and dilator signaling. How phenylephrine affects cerebrovascular regulation remains unclear.

methodsA retrospective analysis of data examining cerebral perfusion and blood pressure during systemic phenylephrine infusion in humans and swine was completed. Follow-up experiments examining cerebral hemodynamics during intracarotid arterial infusion of phenylephrine in anesthetized swine were performed. Ex vivo experiments were conducted on isolated porcine cerebral arteries.

resultsSystemic phenylephrine infusion increased indices of cerebrovascular resistance in both humans (

conclusionsNeither systemic nor intracarotid phenylephrine infusion compromised cerebral perfusion, possibly related to increased endothelial NO signaling and reduced α1R density in downstream pial arteries.

Indexed as

Adrenergic alpha-1 Receptor AgonistsCerebral ArteriesCerebrovascular CirculationPhenylephrineVasoconstrictionVasodilationAdultAnimalsFemaleHumansMaleMiddle AgedReceptors, Adrenergic, alpha-1Retrospective StudiesSwineTranslational Research, BiomedicalAdrenergic alpha-1 Receptor AgonistsPhenylephrineReceptors, Adrenergic, alpha-1Vasoconstrictor Agentscerebrovascularendotheliumnitric oxidephenylephrineα1‐adrenergic

Identifiers

PMID40996064
PMCPMC12684522

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.