Cited by 219Nitric Oxide and Endothelin EffectsRedox biology and oxidative stressEicosanoids and Hypertension Pharmacology

Mechanism of action of some inhibitors of endothelium-derived relaxing factor

Open access
Moncada, S, Palmer, R M, Gryglewski, R J·1986·Proceedings of the National Academy of Sciences

Abstract

The mechanism of the inhibitory action of phenidone, 3-amino-1-[m-(trifluoromethyl)phenyl]-2-pyrazoline (BW 755C), dithiothreitol, hydroquinone, and pyrogallol on the vascular relaxation induced by endothelium-derived relaxing factor (EDRF) was investigated. EDRF was released from porcine aortic endothelial cells in culture and bioassayed on a cascade of superfused rabbit aortic strips. These compounds inhibited EDRF-induced relaxation of vascular strips, without affecting the relaxation induced by glyceryl trinitrate, and their inhibitory potency was markedly attenuated (by more than 1 order of magnitude) by the addition of superoxide dismutase (5-15 units/ml) or oxidized cytochrome c (20-40 microM) but not by catalase (30 units/ml) or heat-inactivated superoxide dismutase. These data indicate that the above five inhibitors inactivate EDRF through the formation of superoxide ions, which have recently been shown to destroy EDRF. The inhibition of EDRF by these compounds is therefore attributable to their redox properties rather than to any specific biological action.

Integrity signals

Registry

Crossref · 10.1073/pnas.83.23.9164

Cites

21 of 21 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

The text we found for this paper looks like another document, so its claims and self-check weren’t run. The registry and citation checks still apply.

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The text we found for this paper looks like another document, so the self-check wasn’t run.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Moncada, S., Palmer, R. M., & Gryglewski, R. J.
Venue
Proceedings of the National Academy of Sciences
Published
1986-12
Volume
83
Issue
23
Pages
9164-9168
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2076583182
Cited by
219
References
20
Citations by year
2025: 1 · 2023: 1 · 2022: 3 · 2020: 2 · 2019: 4 · 2018: 3 · 2016: 1 · 2015: 2 · 2014: 4 · 2013: 2 · 2012: 6
FWCI
14.09
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Eicosanoids and Hypertension Pharmacology
Keywords
endothelium-derived relaxing factor, nitric oxide, nitric oxide inhibitors, phenidone, BW755C, dithiothreitol, hydroquinone, pyrogallol, superoxide, superoxide dismutase, oxidized cytochrome c, vasorelaxation, porcine aortic endothelial cells, nitroglycerin
MeSH terms
Animals, Cytochrome c Group, Dithiothreitol, Endothelium, Hydroquinones, Muscle, Smooth, Vascular, Nitric Oxide, Oxidation-Reduction, Pyrazoles, Pyrogallol, Superoxide Dismutase, Swine, Vasodilator Agents, 4,5-Dihydro-1-(3-(trifluoromethyl)phenyl)-1H-pyrazol-3-amine, In Vitro Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review