Evidence map›Paper›PMID 22540539›Full record

ArticleBritish journal of pharmacology2012

Distinct endothelial pathways underlie sexual dimorphism in vascular auto-regulation.

Melissa V Chan, Kristen J Bubb, Alastair Noyce, Inmaculada C Villar, Johan Duchene, Adrian J Hobbs, Ramona S Scotland, Amrita Ahluwalia

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

22 citing papers in PubMed, 43 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Review
  4. Sexually dimorphic mechanisms of HJournal of applied physiology (Bethesda, Md. : 1985) · 2025
    Article
  5. Genetic Insights Into Coronary Microvascular Disease.Microcirculation (New York, N.Y. : 1994) · 2025
    Review
  6. Article
  7. Article
  8. Review
  9. Sex and gender in pulmonary arterial hypertension.European respiratory review : an official journal of the European Respiratory Society · 2021
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Sex Differences in the Cerebral Collateral Circulation.Translational stroke research · 2017
    Article
  17. Endothelial SK3 channel-associated Ca2+ microdomains modulate blood pressure.American journal of physiology. Heart and circulatory physiology · 2016
    Article
  18. Article
  19. Article
  20. 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

8 authors at 3 institutions in 2 countries.

Melissa V ChanWilliam Harvey Research Institute, Barts and The London Medical School, London, UK.
Kristen J Bubb
Alastair Noyce
Inmaculada C Villar
Johan Duchene
Adrian J Hobbs
Ramona S Scotland
Amrita Ahluwalia
William Harvey Research Institute · GBMax Delbrück Center · DEUniversity College London · GB

Funding

British Heart FoundationWellcome Trust
6 · The paper itself

Abstract

background and purposePre-menopausal females have a lower incidence of cardiovascular disease compared with age-matched males, implying differences in the mechanisms and pathways regulating vasoactivity. In small arteries, myogenic tone (constriction in response to raised intraluminal pressure) is a major determinant of vascular resistance. Endothelium-derived dilators, particularly NO, tonically moderate myogenic tone and, because the endothelium is an important target for female sex hormones, we investigated whether NO-mediated moderation of myogenic tone differed between the sexes. EXPERIMENTAL APPROACH: Pressure-diameter or relaxation concentration-response curves to the NO donor spermine-NO or soluble guanylate cyclase (sGC) stimulation (BAY41-2272) were constructed before and following drug intervention in murine mesenteric resistance arteries. Hypotensive responses to activators of the NO-sGC pathway were determined. Quantitative PCR and Western blotting were used for expression analysis. KEY

resultsNO synthase inhibition enhanced myogenic tone of arteries of both sexes while block of endothelium-derived hyperpolarizing factor (EDHF) enhanced responses in arteries of females only. Spermine-NO concentration-dependently relaxed mesenteric arteries isolated from either sex. However, while inhibition of sGC activity attenuated responses of arteries from male mice only, endothelial denudation attenuated responses of arteries from females only. BAY41-2272 and spermine-NO-induced vasodilatation and hypotension were greater in males than in females. CONCLUSIONS AND IMPLICATIONS: NO moderated myogenic tone in arteries of male mice by a sGC-dependent pathway while EDHF was the predominant endothelial regulator in arteries of females. This is a potentially important sexual dimorphism in NO-mediated reactivity and further implicates EDHF as the predominant endothelial vasodilator in female resistance arteries.

Indexed as

Sex CharacteristicsAnimalsBiological FactorsEndothelium, VascularEpoprostenolFemaleGuanylate CyclaseHomeostasisMaleMesenteric ArteriesMiceMice, Inbred C57BLNitric OxideNitric Oxide DonorsPressurePyrazoles3-(4-Amino-5-cyclopropylpyrimidine-2-yl)-1-(2-fluorobenzyl)-1H-pyrazolo(3,4-b)pyridineBiological Factorsendothelium-dependent hyperpolarization factorEpoprostenolGuanylate CyclaseNitric OxideNitric Oxide DonorsPyrazolesPyridinesSperminespermine nitric oxide complex

Identifiers

PMID22540539
PMCPMC3575780
OpenAlexW1480678630

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.