Evidence map›Paper›PMID 30958161›Full record

ArticleJournal of the Royal Society, Interface2019

Collagen reorganization in cartilage under strain probed by polarization sensitive second harmonic generation microscopy.

Jessica C Mansfield, Vipul Mandalia, Andrew Toms, C Peter Winlove, Sophie Brasselet

Abstract read
In one paragraph

Article in Journal of the Royal Society, Interface, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
–field-weighted citation impact
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

49 citing papers in PubMed.

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  5. Collagen Mechanics.Sub-cellular biochemistry · 2026
    Review
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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

5 authors.

Jessica C Mansfield1 Physics, College of Engineering Mathematics and Physical Sciences, University of Exeter , Stocker Road, Exeter EX4 4QL , UK.
Vipul Mandalia2 Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter Hospital , Barrack Road, Exeter EX2 5DW , UK.
Andrew Toms2 Princess Elizabeth Orthopaedic Centre, Royal Devon and Exeter Hospital , Barrack Road, Exeter EX2 5DW , UK.
C Peter Winlove1 Physics, College of Engineering Mathematics and Physical Sciences, University of Exeter , Stocker Road, Exeter EX4 4QL , UK.
Sophie Brasselet3 Institut Fresnel, CNRS, Aix Marseille Univ, Centrale Marseille , 13013 Marseille , France.

Funding

Arthritis Research UK 20714Versus Arthritis 20714
6 · The paper itself

Abstract

Type II collagen fibril diameters in cartilage are beneath the diffraction limit of optical microscopy, which makes the assessment of collagen organization very challenging. In this work we use polarization sensitive second harmonic generation (P-SHG) imaging to map collagen organization in articular cartilage, addressing in particular its behaviour under strain and changes which occur in osteoarthritis. P-SHG yields two parameters, molecular order and orientation, which provide measures of the degree of organization both at the molecular scale (below the diffraction limit) and above a few hundred nanometres (at the image pixel size). P-SHG clearly demonstrates the zonal collagen architecture and reveals differences in the structure of the fibrils around chondrocytes. P-SHG also reveals sub-micron scale fibril re-organization in cartilage strips exposed to tensile loading, with an increase in local organization in the superficial zone which weakly correlates with tensile modulus. Finally, P-SHG is used to investigate osteoarthritic cartilage from total knee replacement surgery, and reveals widespread heterogeneity across samples both microscale fibril orientations and their sub-micron organization. By addressing collagen fibril structure on scales intermediate between conventional light and electron microscopy, this study provides new insights into collagen micromechanics and mechanisms of degradation.

Indexed as

Cartilage, ArticularChondrocytesAnimalsCattleCollagenExtracellular MatrixMicroscopyCollagencartilagecollagenmicromechanicspolarizationsecond harmonic generation

Identifiers

PMID30958161
PMCPMC6364654

What OpenQuestion holds

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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.