Evidence map›Paper›PMID 12972473›Full record

ArticleAnnals of the rheumatic diseases2003

Leptin consumption in the inflamed joints of patients with rheumatoid arthritis.

M Bokarewa, D Bokarew, O Hultgren, A Tarkowski

Open access · bronzeAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 3 pooled it
2.7field-weighted citation impact, top 9% 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

64 citing papers in PubMed, 3 syntheses or guidelines pooled it, 175 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Emerging role of leptin in rheumatoid arthritis.Clinical and experimental immunology · 2014
    Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Leptin in Osteoarthritis and Rheumatoid Arthritis: Player or Bystander?International journal of molecular sciences · 2022
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Association ofBioMed research international · 2020
    Article
  19. Review
  20. Metabolic Checkpoints in Rheumatoid Arthritis.Frontiers in physiology · 2020
    Review

4 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

M BokarewaDepartment of Rheumatology and Inflammation Research, Sahlgrenska University Hospital, Göteborg, Sweden. maria.bokarewa@rheuma.gu.se
D Bokarew
O Hultgren
A Tarkowski
Sahlgrenska University Hospital · SEUniversity of Gothenburg · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeptin has been shown to participate in bone remodelling and leptin substitution reported to have a protective effect in experimental septic arthritis.

objectiveTo assess leptin levels in inflamed joints and plasma of patients with RA. MATERIAL AND

methodsLeptin concentrations were assessed in matched blood and synovial fluid samples from 76 patients with RA. Blood samples from 34 healthy subjects acted as additional controls. Results were analysed and correlated with duration and activity of RA, x ray changes, and treatment at time of sampling.

resultsIn patients with RA, leptin levels were significantly higher in plasma than in synovial fluid samples obtained simultaneously and higher than in control samples. Plasma and synovial fluid leptin levels correlated strongly. Locally in the joint, leptin levels were related to WBC count. Such a relation was not seen in the bloodstream. Leptin levels were not related to sex, age, or disease duration. Difference between leptin levels in plasma and synovial fluid was greater in non-erosive arthritis (5.1 (SEM 1.2) v 3.7 (0.9) ng/ml, p=0.006), than in patients with erosive joint disease (6.2 (1.0) v 5.4 (0.8) ng/ml, NS). Methotrexate treatment was associated with relatively high plasma leptin levels, while treatment with other DMARDs was associated with lower leptin levels than in patients receiving no DMARD treatment (p=0.0005).

conclusionsLeptin production was significantly increased in patients with RA compared with healthy controls. Synovial fluid leptin levels were significantly lower than in matched plasma samples, suggesting an in situ consumption of this molecule.

Indexed as

AdultAgedAged, 80 and overAntirheumatic AgentsArthritis, RheumatoidCase-Control StudiesC-Reactive ProteinFemaleHumansLeptinMaleMiddle AgedSynovial FluidAntirheumatic AgentsC-Reactive ProteinLeptin

Identifiers

PMID12972473
PMCPMC1754314
OpenAlexW2166756374

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.