Evidence map›Paper›PMID 28111306›Full record

ArticleNitric oxide : biology and chemistry2017

Thiolate-based dinitrosyl iron complexes: Decomposition and detection and differentiation from S-nitrosothiols.

Agnes Keszler, Anne R Diers, Zhen Ding, Neil Hogg

Open access · greenAbstract read
In one paragraph

Article in Nitric oxide : biology and chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 36 citations in OpenAlex.

  1. Targeting macro- and micro-nutrient regulation of HNeurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Review
  2. Article
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  4. The chemical biology of dinitrogen trioxide.Redox biochemistry and chemistry · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Biological Mechanisms ofAntioxidants (Basel, Switzerland) · 2021
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. 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.

Agnes KeszlerDepartment of Biophysics and Redox Biology Program, Medical College of Wisconsin, Milwaukee, WI 53226, United States.
Anne R DiersDepartment of Biophysics and Redox Biology Program, Medical College of Wisconsin, Milwaukee, WI 53226, United States.
Zhen DingDepartment of Biophysics and Redox Biology Program, Medical College of Wisconsin, Milwaukee, WI 53226, United States.
Neil HoggDepartment of Biophysics and Redox Biology Program, Medical College of Wisconsin, Milwaukee, WI 53226, United States. Electronic address: nhogg@mcw.edu.
Medical College of Wisconsin · US

Funding

Mechanism of Metabolism of S-NitrosothiolsR01GM055792 · NIGMS · MEDICAL COLLEGE OF WISCONSIN · PI HOGG, NEIL · 2002 to 2010
$2.0M
REACTIONS BETWEEN THIOLS, NITRIC OXIDE AND PEROXYNITRITER29GM055792 · NIGMS · MEDICAL COLLEGE OF WISCONSIN · PI HOGG, NEIL · 1997 to 2001
$204k
NIGMS NIH HHS R01 GM055792NIGMS NIH HHS R29 GM055792
6 · The paper itself

Abstract

Dinitrosyl iron complexes (DNIC) spontaneously form in aqueous solutions of Fe(II), nitric oxide (NO), and various anions. They exist as an equilibrium between diamagnetic, dimeric (bi-DNIC) and paramagnetic, monomeric (mono-DNIC) forms. Thiolate groups (e.g., on glutathione or protein cysteine residues) are the most biologically relevant anions to coordinate to Fe(II). Low molecular weight DNIC have previously been suggested to be important mediators of NO biology in cells, and emerging literature supports their role in the control of iron-dependent cellular processes. Recently, it was shown that DNIC may be one of the most abundant NO-derived products in cells and may serve as intermediates in the cellular formation of S-nitrosothiols. In this work, we examined the stability of low molecular weight DNIC and investigated issues with their detection in the presence of other NO-dependent metabolites such as S-nitrosothiols. By using spectrophotometric, Electron Paramagnetic Resonance, ozone-based chemiluminesence, and HPLC techniques we established that at neutral pH, bi-DNIC remain stable for hours, whereas excess thiol results in decomposition to form nitrite. NO was also detected during the decomposition, but no S-nitrosothiol formation was observed. Importantly, mercury chloride accelerated the degradation of DNIC; thus, the implications of this finding for the diagnostic use of mercury chloride in the detection of S-nitrosothiols were determined in simple and complex biological systems. We conclude S-nitrosothiol levels may have been substantially overestimated in all methods where mercury chloride has been used.

Indexed as

AnimalsCysteineFerrous CompoundsGlutathioneHumansHydrogen-Ion ConcentrationLipopolysaccharidesLuminescenceMCF-7 CellsMiceNitric OxideNitritesRAW 264.7 CellsS-NitrosothiolsSpermineCysteineFerrous CompoundsGlutathioneLipopolysaccharidesNitric OxideNitritesS-nitrosocysteineS-NitrosothiolsSperminespermine nitric oxide complexDNICNitric oxideNO-dependent chemiluminescenceS-nitrosothiols

Identifiers

PMID28111306
PMCPMC5663227
OpenAlexW2578393164

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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.