Evidence map›Paper›PMID 16542506›Full record

ArticleArthritis research & therapy2006

Decrease in expression of bone morphogenetic proteins 4 and 5 in synovial tissue of patients with osteoarthritis and rheumatoid arthritis.

Carsten P Bramlage, Thomas Häupl, Christian Kaps, Ute Ungethüm, Veit Krenn, Axel Pruss, Gerhard A Müller, Frank Strutz, Gerd-R Burmester

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.2field-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

38 citing papers in PubMed, 76 citations in OpenAlex.

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  17. Bone morphogenetic protein signaling in inflammation.Experimental biology and medicine (Maywood, N.J.) · 2019
    Review
  18. Article
  19. Review
  20. Reevaluation of Pluripotent Cytokine TGF-β3 in Immunity.International journal of molecular sciences · 2018
    Review
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 at 3 institutions in 1 country.

Carsten P BramlageDepartment of Medicine, Nephrology and Rheumatology, Georg-August-University Göttingen, Robert-Koch-Strasse 40, D-37075 Göttingen, Germany. c.bramlage@med.uni-goettingen.de
Thomas Häupl
Christian Kaps
Ute Ungethüm
Veit Krenn
Axel Pruss
Gerhard A Müller
Frank Strutz
Gerd-R Burmester
Charité - Universitätsmedizin Berlin · DEUniversity of Göttingen · DEUniversität Trier · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bone morphogenetic proteins (BMPs) have been identified as important morphogens with pleiotropic functions in regulating the development, homeostasis and repair of various tissues. The aim of this study was to characterize the expression of BMPs in synovial tissues under normal and arthritic conditions. Synovial tissue from normal donors (ND) and from patients with osteoarthritis (OA) and rheumatoid arthritis (RA) were analyzed for BMP expression by using microarray hybridization. Differential expression of BMP-4 and BMP-5 was validated by semiquantitative RT-PCR, in situ hybridization and immunohistochemistry. Activity of arthritis was determined by routine parameters for systemic inflammation, by histological scoring of synovitis and by semiquantitative RT-PCR of IL-1beta, TNF-alpha, stromelysin and collagenase I in synovial tissue. Expression of BMP-4 and BMP-5 mRNA was found to be significantly decreased in synovial tissue of patients with RA in comparison with ND by microarray analysis (p < 0.0083 and p < 0.0091). Validation by PCR confirmed these data in RA (p < 0.002) and also revealed a significant decrease in BMP-4 and BMP-5 expression in OA compared with ND (p < 0.015). Furthermore, histomorphological distribution of both morphogens as determined by in situ hybridization and immunohistochemistry showed a dominance in the lining layer of normal tissues, whereas chronically inflamed tissue from patients with RA revealed BMP expression mainly scattered across deeper layers. In OA, these changes were less pronounced with variable distribution of BMPs in the lining and sublining layer. BMP-4 and BMP-5 are expressed in normal synovial tissue and were found decreased in OA and RA. This may suggest a role of distinct BMPs in joint homeostasis that is disturbed in inflammatory and degenerative joint diseases. In comparison with previous reports, these data underline the complex impact of these factors on homeostasis and remodeling in joint physiology and pathology.

Indexed as

AdultAgedArthritis, RheumatoidBone Morphogenetic Protein 4Bone Morphogenetic Protein 5Bone Morphogenetic ProteinsFemaleHumansMaleMiddle AgedOligonucleotide Array Sequence AnalysisOsteoarthritisReference ValuesRNASynovial MembraneTranscription, GeneticBMP4 protein, humanBMP5 protein, humanBone Morphogenetic Protein 4Bone Morphogenetic Protein 5Bone Morphogenetic ProteinsRNA

Identifiers

PMID16542506
PMCPMC1526630
OpenAlexW1589875314

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.