Evidence map›Paper›PMID 25617803›Full record

ArticleRedox biology2015

Sex-based differential regulation of oxidative stress in the vasculature by nitric oxide.

Rommel C Morales, Edward S M Bahnson, George E Havelka, Nadiezhda Cantu-Medellin, Eric E Kelley, Melina R Kibbe

Open access · goldAbstract read
In one paragraph

Article in Redox biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Amyloid β alters vascular CaThe Journal of physiology · 2025
    Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. 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 3 institutions in 1 country.

Rommel C MoralesDivision of Vascular Surgery, Northwestern University, Chicago, IL, USA; Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA.
Edward S M BahnsonDivision of Vascular Surgery, Northwestern University, Chicago, IL, USA; Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA.
George E HavelkaDivision of Vascular Surgery, Northwestern University, Chicago, IL, USA; Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA.
Nadiezhda Cantu-MedellinVascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA.
Eric E KelleyVascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA.
Melina R KibbeDivision of Vascular Surgery, Northwestern University, Chicago, IL, USA; Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA; Jesse Brown Veterans Affairs Medical Center, Chicago, IL, USA. Electronic address: mkibbe@nmh.org.
Northwestern University · USUniversity of Pittsburgh · USJesse Brown VA Medical Center · US

Funding

Vascular Surgery Scientist Training ProgramT32HL094293 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI ESKANDARI, MARK K · 2009 to 2023
$4.0M
NHLBI NIH HHS T32 HL094293
6 · The paper itself

Abstract

backgroundNitric oxide ((•)NO) is more effective at inhibiting neointimal hyperplasia following arterial injury in male versus female rodents, though the etiology is unclear. Given that superoxide (O2(•-)) regulates cellular proliferation, and (•)NO regulates superoxide dismutase-1 (SOD-1) in the vasculature, we hypothesized that (•)NO differentially regulates SOD-1 based on sex. MATERIALS AND

methodsMale and female vascular smooth muscle cells (VSMC) were harvested from the aortae of Sprague-Dawley rats. O2(•-) levels were quantified by electron paramagnetic resonance (EPR) and HPLC. sod-1 gene expression was assayed by qPCR. SOD-1, SOD-2, and catalase protein levels were detected by Western blot. SOD-1 activity was measured via colorimetric assay. The rat carotid artery injury model was performed on Sprague-Dawley rats ±(•)NO treatment and SOD-1 protein levels were examined by Western blot.

resultsIn vitro, male VSMC have higher O2(•-) levels and lower SOD - 1 activity at baseline compared to female VSMC (P < 0.05). (•)NO decreased O2(•-) levels and increased SOD - 1 activity in male (P<0.05) but not female VSMC. (•)NO also increased sod- 1 gene expression and SOD - 1 protein levels in male (P<0.05) but not female VSMC. In vivo, SOD-1 levels were 3.7-fold higher in female versus male carotid arteries at baseline. After injury, SOD-1 levels decreased in both sexes, but (•)NO increased SOD-1 levels 3-fold above controls in males, but returned to baseline in females.

conclusionsOur results provide evidence that regulation of the redox environment at baseline and following exposure to (•)NO is sex-dependent in the vasculature. These data suggest that sex-based differential redox regulation may be one mechanism by which (•)NO is more effective at inhibiting neointimal hyperplasia in male versus female rodents.

Indexed as

AnimalsCarotid ArteriesCarotid Artery InjuriesCell ProliferationEndothelium, VascularFemaleGene Expression RegulationMaleMyocytes, Smooth MuscleNitric OxideNitric Oxide DonorsOxidative StressPrimary Cell CultureRatsRats, Sprague-DawleySex FactorsNitric OxideNitric Oxide DonorsSod1 protein, ratSuperoxide DismutaseSuperoxide Dismutase-1SuperoxidesNeointimal hyperplasiaNitric oxideSex differencesSuperoxideVascular

Identifiers

PMID25617803
PMCPMC4803798
OpenAlexW2071738703

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.