Evidence map›Paper›PMID 33694106›Full record

ArticleJournal of experimental orthopaedics2021

FGF gene expression in injured tendons as a prognostic biomarker of 1-year patient outcome after Achilles tendon repair.

Junyu Chen, Joel Svensson, Carl-Johan Sundberg, Aisha Siddiqah Ahmed, Paul W Ackermann

2 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in Journal of experimental orthopaedics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.3field-weighted citation impact, top 13% 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.

NCT06160427 phase4active not recruitingnot on this mapstarted 2023, after this paper: background citation

Connective Tissue Matrix (CTM) for Rotator Cuff Tendinopathy: A Randomized Controlled Trial

TypeinterventionalSponsorAllegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)Ran2023 to 2028Enrolled92ConditionsTendinopathy, Shoulder Pain, Rotator Cuff Tendinitis, Rotator Cuff TendinosisArmsCTM Boost, PRP
NCT06712290 nawithdrawnnot on this mapstarted 2024, after this paper: background citation

Connective Tissue Matrix (CTM) Compared to Corticosteroid Injections: A Pilot Randomized Controlled Trial

TypeinterventionalSponsorAllegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)Ran2024 to 2025Enrolled0ConditionsRotator Cuff TendinopathyArmscelgene, Corticosteroid
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 16 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Review
  7. Optimizing tendon repair and regeneration: how does theFrontiers in bioengineering and biotechnology · 2024
    Review
  8. Article
  9. Review
  10. Article
  11. 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

5 authors at 1 institution in 1 country.

Junyu ChenDepartment of Molecular Medicine and Surgery, Karolinska Institutet, 171 76, Stockholm, Sweden.ORCID https://orcid.org/0000-0002-3320-155X
Joel SvenssonDepartment of Molecular Medicine and Surgery, Karolinska Institutet, 171 76, Stockholm, Sweden.
Carl-Johan SundbergDepartment of Physiology & Pharmacology, Karolinska Institutet, Stockholm, Sweden.
Aisha Siddiqah AhmedDepartment of Molecular Medicine and Surgery, Karolinska Institutet, 171 76, Stockholm, Sweden.ORCID https://orcid.org/0000-0002-8483-5309
Paul W AckermannDepartment of Molecular Medicine and Surgery, Karolinska Institutet, 171 76, Stockholm, Sweden. paul.ackermann@sll.se.ORCID http://orcid.org/0000-0002-5520-169X
Karolinska Institutet · SE

Funding

Centrum for Idrottsforskning P2017-0111Centrum for Idrottsforskning P2019-0079Stockholms Läns Landsting SLL20150435Vetenskapsrådet 2012-3510
6 · The paper itself

Abstract

purposeHealing outcome after Achilles Tendon Rupture (ATR) is variable and unsatisfactory. Many ATR patients still exhibit pain, functional deficits and limitations in walking one-year post-surgery. The present study was designed to investigate the association between the expression of healing biomarkers and patient outcome after ATR.

methodsTendon biopsies were collected from 25 ATR patients during surgery. At 1-year post surgery, all patients completed questionnaires; Achilles tendon Total Rupture Score (ATRS) and Foot and Ankle Outcome Score (FAOS), and were tested for functional outcomes by heel-rise test. In biopsies, FGF, COL III, FN, COL I and MMP-9 mRNA levels were assessed by quantitative RT-PCR while protein expression was studied by immunohistochemistry (IHC).

resultsOur analysis confirmed the presence of FGF, COL III, FN, COL I and MMP-9 at mRNA and protein levels in tendon biopsies. FGF gene expression associated positively with improved total ATRS and better functional outcomes. Additionally, FGF mRNA levels were associated with less pain, less running limitations and less loss in physical activity. In addition, higher COL III mRNA expression was associated with more tendon strength.

conclusionOur findings indicate that FGF gene expression is associated with improved patient-reported outcome. FGF expression in surgical biopsies could potentially be used to assist the prognostic evaluation of patient outcome and may be used as a predictor for healing. However, further studies are needed to evaluate the role of FGF in Achilles tendon healing. LEVEL OF EVIDENCE: II.

Indexed as

Achilles tendon ruptureBiomarkersmRNA expression, immunohistochemistryPatient outcome

Identifiers

PMID33694106
PMCPMC7947072
OpenAlexW3134897244

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.