Evidence map›Paper›PMID 25054223›Full record

ArticlePloS one2014

Genes involved in the osteoarthritis process identified through genome wide expression analysis in articular cartilage; the RAAK study.

Yolande F M Ramos, Wouter den Hollander, Judith V M G Bovée, Nils Bomer, Ruud van der Breggen, Nico Lakenberg, J Christiaan Keurentjes, Jelle J Goeman, P Eline Slagboom, Rob G H H Nelissen and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 107 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
107citing papers in PubMed, 4 pooled it
10.5field-weighted citation impact, top 1% 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

107 citing papers in PubMed, 4 syntheses or guidelines pooled it, 169 citations in OpenAlex.

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47 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

12 authors at 2 institutions in 1 country.

Yolande F M RamosDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands; The Netherlands Genomics Initiative, sponsored by the NCHA, Leiden-Rotterdam, The Netherlands.
Wouter den HollanderDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
Judith V M G BovéeDepartment of Pathology, Leiden University Medical Center, Leiden, The Netherlands.
Nils BomerDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
Ruud van der BreggenDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
Nico LakenbergDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
J Christiaan KeurentjesDepartment of Orthopeadics, Leiden University Medical Center, Leiden, The Netherlands.
Jelle J GoemanDepartment of Biostatistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands.
P Eline SlagboomDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands; The Netherlands Genomics Initiative, sponsored by the NCHA, Leiden-Rotterdam, The Netherlands.
Rob G H H NelissenDepartment of Orthopeadics, Leiden University Medical Center, Leiden, The Netherlands.
Steffan D BosDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands; The Netherlands Genomics Initiative, sponsored by the NCHA, Leiden-Rotterdam, The Netherlands.
Ingrid MeulenbeltDepartment of Molecular Epidemiology, Leiden University Medical Center, Leiden, The Netherlands; The Netherlands Genomics Initiative, sponsored by the NCHA, Leiden-Rotterdam, The Netherlands.
Leiden University Medical Center · NLNetherlands Consortium for Healthy Ageing · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveIdentify gene expression profiles associated with OA processes in articular cartilage and determine pathways changing during the disease process.

methodsGenome wide gene expression was determined in paired samples of OA affected and preserved cartilage of the same joint using microarray analysis for 33 patients of the RAAK study. Results were replicated in independent samples by RT-qPCR and immunohistochemistry. Profiles were analyzed with the online analysis tools DAVID and STRING to identify enrichment for specific pathways and protein-protein interactions.

resultsAmong the 1717 genes that were significantly differently expressed between OA affected and preserved cartilage we found significant enrichment for genes involved in skeletal development (e.g. TNFRSF11B and FRZB). Also several inflammatory genes such as CD55, PTGES and TNFAIP6, previously identified in within-joint analyses as well as in analyses comparing preserved cartilage from OA affected joints versus healthy cartilage were among the top genes. Of note was the high up-regulation of NGF in OA cartilage. RT-qPCR confirmed differential expression for 18 out of 19 genes with expression changes of 2-fold or higher, and immunohistochemistry of selected genes showed a concordant change in protein expression. Most of these changes associated with OA severity (Mankin score) but were independent of joint-site or sex.

conclusionWe provide further insights into the ongoing OA pathophysiological processes in cartilage, in particular into differences in macroscopically intact cartilage compared to OA affected cartilage, which seem relatively consistent and independent of sex or joint. We advocate that development of treatment could benefit by focusing on these similarities in gene expression changes and/or pathways.

Indexed as

TranscriptomeAgedAged, 80 and overCartilage, ArticularCohort StudiesFemaleGene Expression RegulationHumansMaleMiddle AgedOsteoarthritisProtein Interaction Maps

Identifiers

PMID25054223
PMCPMC4108379
OpenAlexW2068944823

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.