Evidence map›Paper›PMID 21331575›Full record

ArticleRheumatology international2012

Increased myeloperoxidase plasma levels in rheumatoid arthritis.

Raissa Maria Sampaio Neves Fernandes, Neusa Pereira da Silva, Emília Inoue Sato

Abstract read
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In one paragraph

Article in Rheumatology international, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

28 citing papers in PubMed, 59 citations in OpenAlex.

  1. Role of neutrophils in regulating vascular permeability in inflammatory and autoimmune diseases.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. Article
  6. Effects and molecular mechanisms ofFrontiers in pharmacology · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Neutrophils in the Pathogenesis of Rheumatic Diseases.Rheumatology and immunology research · 2022
    Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Observational
  18. Article
  19. Article
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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

3 authors at 1 institution in 1 country.

Raissa Maria Sampaio Neves FernandesBrazilian Society of Rheumatology, Piauí, Brazil.
Neusa Pereira da Silva
Emília Inoue Sato
Universidade Federal de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

High myeloperoxidase (MPO) serum levels have been shown in several inflammatory diseases, including rheumatoid arthritis (RA). However, the correlation between MPO levels and disease activity in RA patients is still controversial. The aim of the study was to determine MPO plasma levels in RA patients and to investigate potential correlations between MPO levels and disease activity and treatment. MPO plasma levels were measured by ELISA according the manufacturer's instructions. Disease activity was measured by DAS28 ESR and DAS28 CRP scores, and patients were classified into 4 groups: group 1 DAS28 < 2.6; group 2: 2.6 ≤ DAS28 ≤ 3.2; group 3: 3.2 < DAS28 ≤ 5.1 and group 4: DAS28 > 5.1. Rheumatoid factor (RF) was measured by latex agglutination test, and anti-cyclic citrullinated peptide (anti-CCP) antibodies were detected by ELISA with a commercial kit. Fifty-seven female RA patients (mean age: 46.02 ± 13.47 years, mean disease duration: 115.77 ± 99.44 months) and sixty gender- and age-paired healthy controls were included. Mean MPO plasma levels were significantly higher in patients than in controls (72.27 pM vs. 40.78 pM, P = 0.007). RF was found in 59.6% and anti-CCP in 80.7% of the RA patients. No significant difference in MPO levels was seen among the four RA disease activity groups. We did not find significant correlation between MPO levels and disease activity as measured by DAS28 score. In conclusion, we observed significantly higher MPO plasma levels in RA patients when compared to healthy controls. However, we did not find correlation between MPO plasma level and disease activity.

Indexed as

AdultAnalysis of VarianceArthritis, RheumatoidAutoantibodiesBiomarkersBlood SedimentationBrazilCase-Control StudiesC-Reactive ProteinEnzyme-Linked Immunosorbent AssayFemaleHumansLatex Fixation TestsMaleMiddle AgedPeptides, CyclicAutoantibodiesBiomarkersC-Reactive Proteincyclic citrullinated peptidePeptides, CyclicPeroxidaseRheumatoid Factor

Identifiers

PMID21331575
OpenAlexW2076784979

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.