Evidence map›Paper›PMID 30021608›Full record

ArticleBMC musculoskeletal disorders2018

Effects of mesenchymal stromal cells versus serum on tendon healing in a controlled experimental trial in an equine model.

A B Ahrberg, C Horstmeier, D Berner, W Brehm, C Gittel, A Hillmann, C Josten, G Rossi, S Schubert, K Winter and 1 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC musculoskeletal disorders, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
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  14. Regenerative Medicine for Equine Musculoskeletal Diseases.Animals : an open access journal from MDPI · 2021
    Review
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  17. Article
  18. Robust Suture Combination for Rat Flexor Tendon Repair Model.Journal of hand surgery global online · 2020
    Article
  19. Review
  20. 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

11 authors at 5 institutions in 4 countries.

A B AhrbergDepartment of Orthopedics, Traumatology and Plastic Surgery, University of Leipzig, Liebigstr. 20, 04103, Leipzig, Germany. annette.ahrberg@medizin.uni-leipzig.de.
C HorstmeierTranslational Center for Regenerative Medicine (TRM), University of Leipzig, Leipzig, Germany.
D BernerDepartment of Clinical Science and Services, The Royal Veterinary College, University of London, London, UK.
W BrehmTranslational Center for Regenerative Medicine (TRM), University of Leipzig, Leipzig, Germany.
C GittelUniversity Equine Hospital, University of Leipzig, Leipzig, Germany.
A HillmannTranslational Center for Regenerative Medicine (TRM), University of Leipzig, Leipzig, Germany.
C JostenDepartment of Orthopedics, Traumatology and Plastic Surgery, University of Leipzig, Liebigstr. 20, 04103, Leipzig, Germany.
G RossiSchool of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy.
S SchubertTranslational Center for Regenerative Medicine (TRM), University of Leipzig, Leipzig, Germany.
K WinterUniversity Equine Hospital, University of Leipzig, Leipzig, Germany.
J BurkTranslational Center for Regenerative Medicine (TRM), University of Leipzig, Leipzig, Germany.
Leipzig University · DEUniversity Hospital Leipzig · DEBOKU University · ATRoyal Veterinary College · GBUniversità di Camerino · IT

Funding

German Federal Ministry of Education and Research BMBF 1315883Saxon Ministry of Science and the Fine Arts not applicable
6 · The paper itself

Abstract

backgroundMesenchymal stromal cells (MSC) have shown promising results in the treatment of tendinopathy in equine medicine, making this therapeutic approach seem favorable for translation to human medicine. Having demonstrated that MSC engraft within the tendon lesions after local injection in an equine model, we hypothesized that they would improve tendon healing superior to serum injection alone.

methodsQuadrilateral tendon lesions were induced in six horses by mechanical tissue disruption combined with collagenase application 3 weeks before treatment. Adipose-derived MSC suspended in serum or serum alone were then injected intralesionally. Clinical examinations, ultrasound and magnetic resonance imaging were performed over 24 weeks. Tendon biopsies for histological assessment were taken from the hindlimbs 3 weeks after treatment. Horses were sacrificed after 24 weeks and forelimb tendons were subjected to macroscopic and histological examination as well as analysis of musculoskeletal marker expression.

resultsTendons injected with MSC showed a transient increase in inflammation and lesion size, as indicated by clinical and imaging parameters between week 3 and 6 (p < 0.05). Thereafter, symptoms decreased in both groups and, except that in MSC-treated tendons, mean lesion signal intensity as seen in T2w magnetic resonance imaging and cellularity as seen in the histology (p < 0.05) were lower, no major differences could be found at week 24.

conclusionsThese data suggest that MSC have influenced the inflammatory reaction in a way not described in tendinopathy studies before. However, at the endpoint of the current study, 24 weeks after treatment, no distinct improvement was observed in MSC-treated tendons compared to the serum-injected controls. Future studies are necessary to elucidate whether and under which conditions MSC are beneficial for tendon healing before translation into human medicine.

Indexed as

Disease Models, AnimalSerumAnimalsCells, CulturedFemaleFollow-Up StudiesHorsesMaleMesenchymal Stem Cell TransplantationTendinopathyAnimal modelHorseMSCSerumTendon

Identifiers

PMID30021608
PMCPMC6052633
OpenAlexW2883802040

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.