Evidence map›Paper›PMID 32708826›Full record

ArticleCells2020

Red Blood Cell Peroxynitrite Causes Endothelial Dysfunction in Type 2 Diabetes Mellitus via Arginase.

Ali Mahdi, John Tengbom, Michael Alvarsson, Bernhard Wernly, Zhichao Zhou, John Pernow

Open access · goldAbstract read
In one paragraph

Article in Cells, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. EndothelialCurrent diabetes reviews · 2025
    Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Review
  10. Pathophysiology of Red Blood Cell Dysfunction in Diabetes and Its Complications.Pathophysiology : the official journal of the International Society for Pathophysiology · 2023
    Review
  11. Review
  12. Molecular Study on Twin Cohort with Discordant Birth Weight.Antioxidants (Basel, Switzerland) · 2023
    Article
  13. Review
  14. Mechanism of the antidiabetic action ofFrontiers in nutrition · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Red Cell Distribution Width Is Independently Associated with Mortality in Sepsis.Medical principles and practice : international journal of the Kuwait University, Health Science Centre · 2022
    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

6 authors at 1 institution in 2 countries.

Ali MahdiDivision of Cardiology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, 171 77 Stockholm, Sweden.ORCID 0000-0003-0386-7817
John TengbomDivision of Cardiology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, 171 77 Stockholm, Sweden.
Michael AlvarssonDivision of Endocrinology and Diabetology, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, 171 77 Stockholm, Sweden.
Bernhard WernlyDivision of Cardiology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, 171 77 Stockholm, Sweden.ORCID 0000-0003-4024-0220
Zhichao ZhouDivision of Cardiology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, 171 77 Stockholm, Sweden.ORCID 0000-0002-5107-6529
John PernowDivision of Cardiology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, 171 77 Stockholm, Sweden.
Karolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We recently showed that red blood cells (RBCs) from patients with type 2 diabetes mellitus (T2DM-RBCs) induce endothelial dysfunction through a mechanism involving arginase I and reactive oxygen species. Peroxynitrite is known to activate arginase in endothelial cells. Whether peroxynitrite regulates arginase activity in RBCs, and whether it is involved in the cross-talk between RBCs and the vasculature in T2DM, is unclear and elusive. The present study was designed to test the hypothesis that endothelial dysfunction induced by T2DM-RBCs is driven by peroxynitrite and upregulation of arginase. RBCs were isolated from patients with T2DM and healthy age matched controls. RBCs were co-incubated with aortae isolated from wild type rats for 18 h in the absence and presence of peroxynitrite scavenger FeTTPS. Evaluation of endothelial function in organ chambers by cumulative addition of acetylcholine as well as measurement of RBC and vessel arginase activity was performed. In another set of experiments, RBCs isolated from healthy subjects (Healthy RBCs) were incubated with the peroxynitrite donor SIN-1 with subsequent evaluation of endothelial function and arginase activity. T2DM-RBCs, but not Healthy RBCs, induced impairment in endothelial function, which was fully reversed by scavenging of RBC but not vascular peroxynitrite with FeTPPS. Arginase activity was up-regulated by the peroxynitrite donor SIN-1 in Healthy RBCs, an effect that was inhibited by FeTTPS. Healthy RBCs co-incubated with aortae in the presence of SIN-1 caused impairment of endothelial function, which was inhibited by FeTTPS or the arginase inhibitor ABH. T2DM-RBCs induced up-regulation of vascular arginase, an effect that was fully inhibited by FeTTPS. Collectively, our data indicate that RBCs impair endothelial function in T2DM via an effect that is driven by a peroxynitrite-mediated increase in arginase activity. This mechanism may be targeted in patients with T2DM for improvement in endothelial function.

Indexed as

AnimalsAortaArginaseDiabetes Mellitus, Type 2Endothelium, VascularErythrocytesFemaleHumansMaleMiddle AgedModels, BiologicalMolsidominePeroxynitrous AcidRats, Sprague-DawleyRats, WistarArginaselinsidomineMolsidominePeroxynitrous Acidarginaseendothelial dysfunctionred blood cellstype 2 diabetes

Identifiers

PMID32708826
PMCPMC7407649
OpenAlexW3042217278

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.