Evidence map›Paper›PMID 27548063›Full record

ArticlePloS one2016

Dose-Related and Time-Dependent Development of Collagenase-Induced Tendinopathy in Rats.

Carlotta Perucca Orfei, Arianna B Lovati, Marco Viganò, Deborah Stanco, Marta Bottagisio, Alessia Di Giancamillo, Stefania Setti, Laura de Girolamo

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.0field-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

27 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
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  3. Methylene blue restores NADJournal of orthopaedic translation · 2026
    Article
  4. Grafts in tendon repair.Materials today. Bio · 2026
    Review
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  19. Animal model for tendinopathy.Journal of orthopaedic translation · 2023
    Review
  20. 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

8 authors at 4 institutions in 1 country.

Carlotta Perucca OrfeiOrthopaedic Biotechnology Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy.
Arianna B LovatiCell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy.ORCID http://orcid.org/0000-0002-5230-9718
Marco ViganòOrthopaedic Biotechnology Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy.
Deborah StancoOrthopaedic Biotechnology Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy.
Marta BottagisioCell and Tissue Engineering Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy.
Alessia Di GiancamilloDepartment of Health, Animal Science and Food Safety, University of Milan, Milan, Italy.
Stefania SettiIGEA SpA Clinical Biophysics, Carpi (MO), Italy.
Laura de GirolamoOrthopaedic Biotechnology Laboratory, IRCCS Galeazzi Orthopaedic Institute, Milan, Italy.
Istituto Ortopedico Galeazzi · ITUniversity of Milan · ITIGEA Clinical Biophysics (Italy) · ITUniversity of Pavia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tendinopathy is a big burden in clinics and it represents 45% of musculoskeletal lesions. Despite the relevant social impact, both pathogenesis and development of the tendinopathy are still under-investigated, thus limiting the therapeutic advancement in this field. The purpose of this study was to evaluate the dose-dependent and time-related tissue-level changes occurring in a collagenase-induced tendinopathy in rat Achilles tendons, in order to establish a standardized model for future pre-clinical studies. With this purpose, 40 Sprague Dawley rats were randomly divided into two groups, treated by injecting collagenase type I within the Achilles tendon at 1 mg/mL (low dose) or 3 mg/mL (high dose). Tendon explants were histologically evaluated at 3, 7, 15, 30 and 45 days. Our results revealed that both the collagenase doses induced a disorganization of collagen fibers and increased the number of rounded resident cells. In particular, the high dose treatment determined a greater neovascularization and fatty degeneration with respect to the lower dose. These changes were found to be time-dependent and to resemble the features of human tendinopathy. Indeed, in our series, the acute phase occurred from day 3 to day 15, and then progressed towards the proliferative phase from day 30 to day 45 displaying a degenerative appearance associated with a very precocious and mild remodeling process. The model represents a good balance between similarity with histological features of human tendinopathy and feasibility, in terms of tendon size to create lesions and costs when compared to other animal models. Moreover, this model could contribute to improve the knowledge in this field, and it could be useful to properly design further pre-clinical studies to test innovative treatments for tendinopathy.

Indexed as

Achilles TendonAnimalsCollagenCollagenasesDisease Models, AnimalDisease ProgressionDose-Response Relationship, DrugHumansInjectionsMaleNeovascularization, PathologicRatsRats, Sprague-DawleyTendinopathyTime FactorsWound HealingCollagencollagenase 1Collagenases

Identifiers

PMID27548063
PMCPMC4993508
OpenAlexW2514036669

What OpenQuestion holds

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LicenceCC BY
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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.