Evidence map›Paper›PMID 32504786›Full record

SynthesisOsteoarthritis and cartilage2020

Lubricin in experimental and naturally occurring osteoarthritis: a systematic review.

A R Watkins, H L Reesink

Open access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Osteoarthritis and cartilage, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.8field-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

15 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Article
  3. Delayed Lubricin Injection Improves Cartilage Repair Tissue Quality in an In Vivo Rabbit Osteochondral Defect Model.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  4. Article
  5. Article
  6. Proteomics Reveals Increased Periostin in Synovial Fluid From Canine and Human Anterior Cruciate Ligament Injury.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025
    Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Osteoarthritis: a common disease that should be avoided in the athletic horse's life.Animal frontiers : the review magazine of animal agriculture · 2022
    Article
  13. Article
  14. Decrease of core 2The Journal of biological chemistry · 2020
    Article
  15. 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

2 authors at 2 institutions in 1 country.

A R WatkinsDepartment of Clinical Sciences, University of Pennsylvania School of Veterinary Medicine, New Bolton Center, Kennett Square, PA, USA.
H L ReesinkDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA. Electronic address: hlr42@cornell.edu.
Cornell University · USUniversity of Pennsylvania · US

Funding

Glycans in joint disease and glycosylated lubricin mimetics for osteoarthritis therapyK08AR068469 · NIAMS · CORNELL UNIVERSITY · PI REESINK, HEIDI · 2017 to 2021
$1.0M
NIAMS NIH HHS K08 AR068469
6 · The paper itself

Abstract

objectiveLubricin is increasingly being evaluated as an outcome measure in studies investigating post-traumatic and naturally occurring osteoarthritis. However, there are discrepancies in results, making it unclear as to whether lubricin is increased, decreased or unchanged in osteoarthritis. The purpose of this study was to review all papers that measured lubricin in joint injury or osteoarthritis in order to draw conclusions about lubricin regulation in joint disease.

designA systematic search of the Pubmed, Web of Knowledge, and EBSCOhost databases for papers was performed. Inclusion criteria were in vivo studies that measured lubricin in humans or animals with joint injury, that investigated lubricin supplementation in osteoarthritic joints, or that described the phenotype of a lubricin knock-out model. A methodological assessment was performed.

resultsSixty-two studies were included, of which thirty-eight measured endogenous lubricin in joint injury or osteoarthritis. Nineteen papers found an increase or no change in lubricin and nineteen reported a decrease. Papers that reported a decrease in lubricin were cited four times more often than those that reported an increase. Fifteen papers described lubricin supplementation, and all reported a beneficial effect. Eleven papers described lubricin knock-out models.

conclusionsThe human literature reveals similar distributions of papers reporting increased lubricin as compared to decreased lubricin in osteoarthritis. The animal literature is dominated by reports of decreased lubricin in the rat anterior cruciate ligament transection model, whereas studies in large animal models report increased lubricin. Intra-articular lubricin supplementation may be beneficial regardless of whether lubricin increases or decreases in OA.

Indexed as

AnimalsArthritis, ExperimentalGlycoproteinsHip InjuriesHumansKnee InjuriesOsteoarthritisProteoglycan 4GlycoproteinsProteoglycan 4Joint lubricationMegakaryocyte stimulating factorProteoglycan 4Superficial zone protein

Identifiers

PMID32504786
PMCPMC8043104
OpenAlexW3034107911

What OpenQuestion holds

Textmetadata
LicenceTDM
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.