Evidence map›Paper›PMID 19490633›Full record

ArticleArthritis research & therapy2009

Nerve growth factor and receptor expression in rheumatoid arthritis and spondyloarthritis.

Christian Barthel, Nataliya Yeremenko, Roland Jacobs, Reinhold E Schmidt, Michael Bernateck, Henning Zeidler, Paul-Peter Tak, Dominique Baeten, Markus Rihl

Abstract readComparative Study
In one paragraph

Article in Arthritis research & therapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
–field-weighted citation impact
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

42 citing papers in PubMed.

  1. Trial
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  8. Mitochondria and sensory processing in inflammatory and neuropathic pain.Frontiers in pain research (Lausanne, Switzerland) · 2022
    Review
  9. Potential therapeutic targets for the treatment of opioid abuse and pain.Advances in pharmacology (San Diego, Calif.) · 2022
    Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
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  18. NGF and Its Receptors in the Regulation of Inflammatory Response.International journal of molecular sciences · 2017
    Review
  19. Review
  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

9 authors.

Christian BarthelClinic for Immunology and Rheumatology, Hannover Medical School (MHH), Carl-Neuberg-Strasse 1, Hannover 30625, Germany. sanoa@t-online.de
Nataliya Yeremenko
Roland Jacobs
Reinhold E Schmidt
Michael Bernateck
Henning Zeidler
Paul-Peter Tak
Dominique Baeten
Markus Rihl

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe previously described the presence of nerve growth factor receptors in the inflamed synovial compartment. Here we investigated the presence of the corresponding nerve growth factors, with special focus on nerve growth factor (NGF).

methodsmRNA expression levels of four ligands (NGF, brain derived growth factor (BDNF), neurotrophin (NT)-3, NT-4) and their four corresponding receptors (tyrosine kinase (trk) A, trkB, trkC, NGFRp75) were determined in the synovial fluid (SF) cells of 9 patients with rheumatoid arthritis (RA) and 16 with spondyloarthritis (SpA) and compared with 7 osteoarthritis (OA) patients. NGF was also determined in synovial tissue (ST) biopsies of 10 RA and 10 SpA patients. The production of NGF by monocytes and lymphocytes was assessed by flow cytometry of SF cells, synovial tissue derived fibroblast-like synoviocytes (FLS) were assessed by ELISA on culture supernatant.

resultsSF cell analysis revealed a clear BDNF and NGF mRNA expression, with significantly higher NGF expression in RA and SpA patients than in the OA group. NGF expression was higher in ST samples of RA as compared to SpA. Using intracellular FACS analysis, we could demonstrate the presence of the NGF protein in the two inflammatory arthritis groups on both CD3+ T lymphocytes and CD14+ cells, i.e. monocytes/macrophages, whereas cultured FLS did not produce NGF in vitro.

conclusionsNeurotrophins and especially NGF are expressed in the synovial fluid and tissue of patients with peripheral synovitis. The presence of neurotrophins as well as their receptors, in particular the NGF/trkA-p75 axis in peripheral synovitis warrants further functional investigation of their active involvement in chronic inflammatory arthritis.

Indexed as

AdolescentAdultAgedArthritis, RheumatoidCells, CulturedFemaleGene Expression RegulationHumansMaleMiddle AgedNerve Growth FactorReceptors, Nerve Growth FactorSpondylarthritisSynovial FluidYoung AdultNerve Growth FactorReceptors, Nerve Growth Factor

Identifiers

PMID19490633
PMCPMC2714133

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Registered trials

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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.