Evidence map›Paper›PMID 31349141›Full record

ArticleJournal of the mechanical behavior of biomedical materials2019

Combined enzymatic degradation of proteoglycans and collagen significantly alters intratissue strains in articular cartilage during cyclic compression.

Maria-Ioana Pastrama, Ana Caxaido Ortiz, Lianne Zevenbergen, Nele Famaey, Willy Gsell, Corey P Neu, Uwe Himmelreich, Ilse Jonkers

Open access · hybridAbstract read
In one paragraph

Article in Journal of the mechanical behavior of biomedical materials, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.7field-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

16 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Mechanical Wear of Degraded Articular Cartilage.Annals of biomedical engineering · 2025
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Ultrashort echo time adiabatic TMagnetic resonance imaging · 2021
    Article
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  14. Review
  15. Article
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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 2 institutions in 3 countries.

Maria-Ioana PastramaKU Leuven, Department of Movement Sciences, Human Movement Biomechanics Research Group, Leuven, Belgium; Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands. Electronic address: m.pastrama@tue.nl.
Ana Caxaido OrtizKU Leuven, Department of Movement Sciences, Human Movement Biomechanics Research Group, Leuven, Belgium.
Lianne ZevenbergenKU Leuven, Department of Movement Sciences, Human Movement Biomechanics Research Group, Leuven, Belgium.
Nele FamaeyKU Leuven, Department of Mechanical Engineering, Soft Tissue Biomechanics Research Group, Leuven, Belgium.
Willy GsellUniversity Hospital Leuven, Department of Imaging and Pathology, Biomedical MRI/Molecular Small Animal Imaging Center (MoSAIC), Leuven, Belgium.
Corey P NeuDepartment of Mechanical Engineering, University of Colorado, Boulder, Colorado, United States.
Uwe HimmelreichUniversity Hospital Leuven, Department of Imaging and Pathology, Biomedical MRI/Molecular Small Animal Imaging Center (MoSAIC), Leuven, Belgium.
Ilse JonkersKU Leuven, Department of Movement Sciences, Human Movement Biomechanics Research Group, Leuven, Belgium.
KU Leuven · BEUniversity of Colorado Boulder · US

Funding

Probing Osteoarthritis Pathogenesis by Noninvasive Imaging of Cartilage StrainR01AR063712 · NIAMS · UNIVERSITY OF COLORADO · PI NEU, COREY P · 2013 to 2023
$4.7M
NIAMS NIH HHS R01 AR063712
6 · The paper itself

Abstract

As degenerative joint diseases such as osteoarthritis (OA) progress, the matrix constituents, particularly collagen fibrils and proteoglycans, become damaged, therefore deteriorating the tissue's mechanical properties. This study aims to further the understanding of the effect of degradation of the different cartilage constituents on the mechanical loading environment in early stage OA. To this end, intact, collagen- and proteoglycan-depleted cartilage plugs were cyclically loaded in axial compression using an experimental model simulating in vivo cartilage-on-cartilage contact conditions in a micro-MRI scanner. Depletion of collagen and proteoglycans was achieved through enzymatic degradation with collagenase and chondroitinase ABC, respectively. Using a displacement-encoded imaging sequence (DENSE), strains were computed and compared in intact and degraded samples. The results revealed that, while degradation with one or the other enzyme had little effect on the contact strains, degradation with a combination of both enzymes caused an increase in the means and variance of the transverse, axial and shear strains, particularly in the superficial zone of the cartilage. This effect indicates that the balance between cartilage matrix constituents plays an essential role in maintaining the mechanical properties of the tissue, and a disturbance in this balance leads to a decrease of the load bearing capacity associated with degenerative joint diseases such as OA.

Indexed as

ProteolysisAnimalsBiomechanical PhenomenaCartilage, ArticularCattleChondroitinases and Chondroitin LyasesCollagenCollagenasesCompressive StrengthMagnetic Resonance ImagingProteoglycansStress, MechanicalTime FactorsChondroitinases and Chondroitin LyasesCollagenCollagenasesProteoglycansArticular cartilageDisplacement-encoded micro-MRIDynamic compressionEnzymatic degradationStrain analysis

Identifiers

PMID31349141
PMCPMC7028440
OpenAlexW2947812106

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.