Evidence map›Paper›PMID 24834922›Full record

ArticleJournal of dental research2014

Lubricin is Required for the Structural Integrity and Post-natal Maintenance of TMJ.

E Koyama, C Saunders, I Salhab, R S Decker, I Chen, H Um, M Pacifici, H D Nah

Open access · greenAbstract read
In one paragraph

Article in Journal of dental research, 2014. 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
4.6field-weighted citation impact, top 5% 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, 59 citations in OpenAlex.

  1. Mastication-Induced Electrical Stimulation Activates Prg4Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
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  8. Review
  9. Spatial and Temporal Expression of Ectodysplasin-A Signaling Pathway Members During Mandibular Condylar Development in Postnatal Mice.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2023
    Article
  10. Article
  11. Article
  12. Zonal interdependence in the temporomandibular joint cartilage.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2023
    Article
  13. Article
  14. Review
  15. Article
  16. Microarray Analysis of Differential Gene Expression Between Traumatic Temporomandibular Joint Fibrous and Bony Ankylosis in a Sheep Model.Medical science monitor : international medical journal of experimental and clinical research · 2021
    Article
  17. Article
  18. Regeneration of Jaw Joint Cartilage in Adult Zebrafish.Frontiers in cell and developmental biology · 2021
    Article
  19. Article
  20. The Roles of Indian Hedgehog Signaling in TMJ Formation.International journal of molecular sciences · 2019
    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

8 authors at 1 institution in 1 country.

E KoyamaDivision of Orthopaedic Surgery koyamae@email.chop.edu.
C SaundersDivision of Orthopaedic Surgery.
I SalhabDivision of Plastic and Reconstructive Surgery, Department of Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA 19107, USA.
R S DeckerDivision of Orthopaedic Surgery.
I ChenDivision of Plastic and Reconstructive Surgery, Department of Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA 19107, USA.
H UmDivision of Orthopaedic Surgery.
M PacificiDivision of Orthopaedic Surgery.
H D NahDivision of Plastic and Reconstructive Surgery, Department of Surgery, The Children's Hospital of Philadelphia, Philadelphia, PA 19107, USA.
Children's Hospital of Philadelphia · US

Funding

Mechanisms of Synovial Joint FormationR01AR062908 · NIAMS · CHILDREN'S HOSP OF PHILADELPHIA · PI ENOMOTO-IWAMOTO, MOTOMI, PACIFICI, MAURIZIO · 2011 to 2020
$4.5M
Mechanisms of Synovial Joint FormationR01AG025868 · NIA · THOMAS JEFFERSON UNIVERSITY · PI PACIFICI, MAURIZIO · 2005 to 2009
$1.8M
NIAMS NIH HHS AR062908.NIAMS NIH HHS R01 AR062908NIA NIH HHS R01 AG025868
6 · The paper itself

Abstract

The Proteoglycan 4 (Prg4) product lubricin plays essential roles in boundary lubrication and movement in limb synovial joints, but its roles in temporomandibular joint (TMJ) are unclear. Thus, we characterized the TMJ phenotype in wild-type and Prg4(-/-) mouse littermates over age. As early as 2 weeks of age, mutant mice exhibited hyperplasia in the glenoid fossa articular cartilage, articular disc, and synovial membrane. By 1 month of age, there were fewer condylar superficial tenascin-C/Col1-positive cells and more numerous apoptotic condylar apical cells, while chondroprogenitors displayed higher mitotic activity, and Sox9-, Col2-, and ColX-expressing chondrocyte zones were significantly expanded. Mutant subchondral bone contained numerous Catepsin K-expressing osteoclasts at the chondro-osseous junction, increased invasive marrow cavities, and suboptimal subchondral bone. Mutant glenoid fossa, disc, synovial cells, and condyles displayed higher Hyaluronan synthase 2 expression. Mutant discs also lost their characteristic concave shape, exhibited ectopic chondrocyte differentiation, and occasionally adhered to condylar surfaces. A fibrinoid substance of unclear origin often covered the condylar surface. By 6 months of age, mutant condyles displayed osteoarthritic degradation with apical/mid-zone separation. In sum, lubricin exerts multiple essential direct and indirect roles to preserve TMJ structural and cellular integrity over post-natal life.

Indexed as

Age FactorsAnimalsApoptosisBone MarrowCartilage, ArticularCathepsin KCell DifferentiationChondrocytesCollagen Type ICollagen Type IICollagen Type XGlucuronosyltransferaseHyaluronan SynthasesHyperplasiaMandibular CondyleMiceCathepsin KCollagen Type ICollagen Type IICollagen Type XCtsk protein, mouseGlucuronosyltransferaseHas2 protein, mouseHyaluronan SynthasesPrg4 protein, mouseProteoglycan 4ProteoglycansSox9 protein, mouseSOX9 Transcription FactorTenascinHas2hyaluronic acidosteoarthritisPrg4superficial layertemporomandibular joint

Identifiers

PMID24834922
PMCPMC4107552
OpenAlexW1996066207

What OpenQuestion holds

Textmetadata
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.