Evidence map›Paper›PMID 30972219›Full record

ArticleBiomedical reports2019

Effect of aging on the tendon structure and tendon-associated gene expression in mouse foot flexor tendon.

Yoichi Sugiyama, Kiyohito Naito, Kenji Goto, Yuko Kojima, Atsushi Furuhata, Mamoru Igarashi, Isao Nagaoka, Kazuo Kaneko

Open access · diamondAbstract read
In one paragraph

Article in Biomedical reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.3field-weighted citation impact, top 14% 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

21 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Loss of type III collagen has limited effect on tendon healing in young adult mice.Matrix biology : journal of the International Society for Matrix Biology · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Aging and injury affect nuclear shape heterogeneity in tendon.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2023
    Article
  11. Animal model for tendinopathy.Journal of orthopaedic translation · 2023
    Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Picrosirius Red Staining: Revisiting Its Application to the Qualitative and Quantitative Assessment of Collagen Type I and Type III in Tendon.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2021
    Article
  19. Article
  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 1 institution in 1 country.

Yoichi SugiyamaDepartment of Medicine for Motor Organs, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Kiyohito NaitoDepartment of Medicine for Motor Organs, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Kenji GotoDepartment of Medicine for Motor Organs, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Yuko KojimaLaboratory of Morphology and Image Analysis, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Atsushi FuruhataLaboratory of Morphology and Image Analysis, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Mamoru IgarashiDepartment of Host Defense and Biochemical Research, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Isao NagaokaDepartment of Host Defense and Biochemical Research, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Kazuo KanekoDepartment of Medicine for Motor Organs, Juntendo University Graduate School of Medicine, Tokyo 113-8421, Japan.
Juntendo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To evaluate the biological changes in tendons during the aging process, the present study examined the effect of aging on the tendon structure, distribution of collagen types I and III, and expression of tendon-associated genes, using flexor tendons in a mouse model. Histological assessment of the tendon structure and distribution of collagen types I and III were performed, and the expression of tendon-associated genes was evaluated in flexor digitorium longus tendons of young (8 weeks) and aged (78 weeks) female C57BL/6 mice. The results indicated that the Soslowsky score, based on the analysis of cellularity, fibroblastic changes, and collagen fiber orientation and disruption, was significantly increased, or worsened, in the tendons of the aged group compared with those in the young group. Furthermore, in the aged group, the distribution of type I collagen was decreased and the distribution of type III collagen was relatively increased compared with the young group. Finally, the mRNA expression levels of collagen (type I and type III) and tenogenic markers (Mohawk homeobox, tenomodulin and scleraxis BHLH transcription factor) were significantly decreased in the aged group compared with the young group. The present observations demonstrated that the structure of the tendons, distribution of types I and III collagen and the expression of tendon-associated genes were modulated by aging in the flexor tendon, and that these changes may contribute to the degeneration of tendons in tendinopathy.

Indexed as

agingcollagentendinopathytendontendon-associated gene

Identifiers

PMID30972219
PMCPMC6439433
OpenAlexW2922268614

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.