Evidence map›Paper›PMID 26003949›Full record

ArticleOsteoarthritis and cartilage2015

ADAMTS-4 activity in synovial fluid as a biomarker of inflammation and effusion.

S Roberts, H Evans, K Wright, L van Niekerk, B Caterson, J B Richardson, K H S Kumar, J H Kuiper

Open access · hybridAbstract read
In one paragraph

Article in Osteoarthritis and cartilage, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. [Advances in immunomodulatory strategies for meniscal regeneration].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026
    Review
  3. Article
  4. ADAMTS-4 as a possible distinguishing indicator between osteoarthritis and haemophilic arthropathy.Haemophilia : the official journal of the World Federation of Hemophilia · 2022
    Article
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  7. Review
  8. Review
  9. Article
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  15. Article
  16. Transcriptional profiling of synovium in a porcine model of early post-traumatic osteoarthritis.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2018
    Article
  17. Review
  18. 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

8 authors at 3 institutions in 1 country.

S RobertsRobert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, Shropshire, UK; Keele University, Keele, Staffordshire, UK. Electronic address: sally.roberts@rjah.nhs.uk.
H EvansRobert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, Shropshire, UK. Electronic address: helena.evans@rjah.nhs.uk.
K WrightRobert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, Shropshire, UK; Keele University, Keele, Staffordshire, UK. Electronic address: karina.wright@rjah.nhs.uk.
L van NiekerkNorthallerton Hospital, Yorkshire, UK. Electronic address: shelly.cameron@stees.nhs.uk.
B CatersonSchool of Bioscience, Cardiff University, UK. Electronic address: caterson@cardiff.ac.uk.
J B RichardsonRobert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, Shropshire, UK; Keele University, Keele, Staffordshire, UK. Electronic address: james.richardson@nhs.net.
K H S KumarRobert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, Shropshire, UK. Electronic address: drkhskumar@yahoo.com.
J H KuiperRobert Jones & Agnes Hunt Orthopaedic Hospital NHS Foundation Trust, Oswestry, Shropshire, UK; Keele University, Keele, Staffordshire, UK. Electronic address: jan.kuiper@nhs.net.
Robert Jones and Agnes Hunt Orthopaedic Hospital · GBCardiff University · GBNorth Yorkshire County Council · GB

Funding

Arthritis Research UK 17540Arthritis Research UK 19429Arthritis Research UK 20590Medical Research Council G0800248Versus Arthritis 18480Versus Arthritis 19429
6 · The paper itself

Abstract

objectiveTo evaluate the potential of ADAMTS-4 (aggrecanase -1) activity in synovial fluid (SF) as a biomarker of knee injury and joint disease.

designWe have measured ADAMTS-4 activity in the synovial fluid of 170 orthopaedic patients with different degrees of joint pathology, using a commercial ADAMTS-4 fluorescence resonance energy transfer (FRET) substrate assay. Patients were classified at arthroscopy as (i) macroscopically normal, (ii) with an injury of the meniscus, anterior cruciate ligament or chondral/osteochondral defects or (iii) with osteoarthritis, and the influence of independent factors (age, patient group, effusion and synovial inflammation) on ADAMTS-4 activity levels was assessed.

resultsIn most patients (106/170) ADAMTS-4 activity was undetectable; ADAMTS-4 ranged from 0 to 2.8 ng/mL in synovial fluid from patients with an injury, 0-4.1 ng/mL in osteoarthritic patients and 4.0-12.3 ng/mL in patients with large effusions. Four independent variables each significantly influenced ADAMTS-4 activity in synovial fluid (all P < 0.001): age (concordance = 0.69), presence of osteoarthritis (OA) (concordance = 0.66), level of effusion (concordance = 0.78) and inflammation (concordance = 0.68). Not only did effusion influence the amount of ADAMTS-4 activity most strongly, but it also did this in an ordered manner (P < 0.001).

conclusionsThe main finding of this study is that ADAMTS-4 levels in synovial fluid are most strongly correlated with inflammation and severity of effusion in the knee. Further study is required to determine if it could provide a useful tool to aid clinical diagnoses, indicate treatment, to monitor progression of joint degeneration or OA or alternatively the success of treatment.

Indexed as

ADAM ProteinsADAMTS4 ProteinAdultBiomarkersFluorescence Resonance Energy TransferHumansJoint DiseasesKnee InjuriesMiddle AgedOsteoarthritis, KneeProcollagen N-EndopeptidaseSynovial FluidADAM ProteinsADAMTS4 ProteinADAMTS4 protein, humanBiomarkersProcollagen N-EndopeptidaseADAMTS-4 activityEffusionInflammationKnee osteoarthritisSynovial fluid

Identifiers

PMID26003949
PMCPMC4565717
OpenAlexW1861353042

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.