Evidence map›Paper›PMID 32418498›Full record

ArticleHypertension (Dallas, Tex. : 1979)2020

ACE (Angiotensin-Converting Enzyme) Inhibition Reverses Vasoconstriction and Impaired Dilation of Pial Collaterals in Chronic Hypertension.

Zhaojin Li, Devon P Lindner, Nicole M Bishop, Marilyn J Cipolla

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Sanctuary sites in cortical stroke.Frontiers in neurology · 2025
    Article
  5. Chronic hypertension alters the relationship between collateral blood flow cortical cerebral blood flow, and brain tissue oxygenation.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024
    Article
  6. Article
  7. An overview of pyridazin-3(2Future medicinal chemistry · 2024
    Review
  8. Article
  9. Article
  10. Therapeutic Induction of Collateral Flow.Translational stroke research · 2023
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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

4 authors at 1 institution in 1 country.

Zhaojin LiFrom the Department of Neurological Sciences (Z.L., D.P.L., M.J.C.), University of Vermont Robert Larner College of Medicine, Burlington.
Devon P LindnerFrom the Department of Neurological Sciences (Z.L., D.P.L., M.J.C.), University of Vermont Robert Larner College of Medicine, Burlington.
Nicole M BishopDepartment of Pathology (N.M.B.), University of Vermont Robert Larner College of Medicine, Burlington.
Marilyn J CipollaFrom the Department of Neurological Sciences (Z.L., D.P.L., M.J.C.), University of Vermont Robert Larner College of Medicine, Burlington.
University of Vermont · US

Funding

Targeting Pial Collaterals for Acute Stroke TreatmentR01NS093289 · NINDS · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI Marilyn J Cipolla · 2015 to 2026
$3.9M
Nikon A1R-ER Confocal Microscope for the Microscopy Imaging CenterS10OD025030 · OD · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI TAATJES, DOUGLAS J. · 2018 to 2018
$557k
NIH HHS S10 OD025030NINDS NIH HHS R01 NS093289
6 · The paper itself

Abstract

Leptomeningeal anastomoses (LMAs) are pial collaterals that perfuse the penumbra and important for stroke outcome. We previously showed LMAs from SHRs (spontaneously hypertensive rats) were vasoconstricted compared with normotensive Wistar rats. Here, we investigated mechanisms by which hypertension causes LMA vasoconstriction. SHRs were treated with the ACE (angiotensin-converting enzyme) inhibitor captopril, an Ang II (angiotensin II)-independent antihypertensive agent hydralazine, or vehicle for 5 weeks in drinking water (n=8/group). A group of Wistar rats (n=8) had regular drinking water served as controls. Blood pressure was measured twice weekly by tail-cuff. LMAs were isolated and studied under pressurized conditions. Vasoreactivity of LMAs, including myogenic responses, reactivity to Rho-kinase inhibitor Y-27632, and nitric oxide were measured. Both captopril and hydralazine lowered blood pressure in SHRs similar to Wistar. However, only captopril normalized LMA increased tone compared with untreated SHRs (15±2% versus 50±3%;

Indexed as

Angiotensin-Converting Enzyme InhibitorsAngiotensin IIAnimalsBenzimidazolesBiphenyl CompoundsBlood PressureCaptoprilChronic DiseaseCollateral CirculationHydralazineHypertensionMalePia MaterRandom AllocationRatsRats, Inbred SHRAngiotensin-Converting Enzyme InhibitorsAngiotensin IIBenzimidazolesBiphenyl CompoundscandesartanCaptoprilHydralazineReceptor, Angiotensin, Type 1rho-Associated KinasesTetrazolesVasodilator Agentsangiotensin IIcollateral circulationhypertensionreceptor, angiotensin, type 1vasoconstriction

Identifiers

PMID32418498
PMCPMC7289681
OpenAlexW3026876481

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.