Evidence map›Paper›PMID 34387852›Full record

ArticleTissue engineering and regenerative medicine2021

Polydeoxyribonucleotide and Polynucleotide Improve Tendon Healing and Decrease Fatty Degeneration in a Rat Cuff Repair Model.

Jung-Taek Hwang, Sang-Soo Lee, Sang Hak Han, Binod Sherchan, Jiss Joseph Panakkal

Erratum issuedAbstract read
In one paragraph

Article in Tissue engineering and regenerative medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Review of Preclinical and Clinical Studies Supporting the Role of Polydeoxyribonucleotide in the Treatment of Tendon Disorders.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
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  8. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Jung-Taek HwangDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, 77, Sakju-ro, Chuncheon-si, Gangwon-do, 24253, Republic of Korea. drakehjt@hanmail.net.ORCID http://orcid.org/0000-0003-4189-084X
Sang-Soo Lee *Department of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, 77, Sakju-ro, Chuncheon-si, Gangwon-do, 24253, Republic of Korea.
Sang Hak HanDepartment of Pathology, Chuncheon Sacred Heart Hospital, Hallym University Medical College, Chuncheon-si, Gangwon-do, Republic of Korea. hue-2@hanmail.net.
Binod SherchanDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, 77, Sakju-ro, Chuncheon-si, Gangwon-do, 24253, Republic of Korea.
Jiss Joseph PanakkalDepartment of Orthopedic Surgery, Chuncheon Sacred Heart Hospital, Hallym University Medical College, 77, Sakju-ro, Chuncheon-si, Gangwon-do, 24253, Republic of Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAfter surgical repair of chronic rotator cuff tears, healing of the repaired tendons often fails and is accompanied by high-level fatty degeneration. Our purpose was to explore the effects of polydeoxyribonucleotide (PDRN) and polynucleotide (PN) on tendon healing and the reversal of fatty degeneration in a chronic rotator cuff tear model using a rat infraspinatus.

methodsSixty rats were randomly assigned to the following three groups (20 rats per group: 12 for histological evaluation and 8 for mechanical testing): saline + repair (SR), PDRN + repair (PR), and PN + repair (PNR). The right shoulder was used for experimental intervention, and the left served as a control. Four weeks after detaching the infraspinatus, the torn tendon was repaired. Saline, PDRN, and PN were applied to the repair sites. Histological evaluation was performed 3 and 6 weeks after repair and biomechanical analysis was performed at 6 weeks.

resultsThree weeks after repair, the PR and PNR groups had more CD168-stained cells than the SR group. The PR group showed a larger cross-sectional area (CSA) of muscle fibers than the SR and PNR groups. Six weeks after repair, the PR and PNR groups showed more adipose cells, less CD68-stained cells, and more parallel tendon collagen fibers than the SR group. The PR group had more CD 68-stained cells than the PNR group. The PR group showed a larger CSA than the SR group. The mean load-to-failure values of the PR and PNR groups were higher than that of the SR group, although these differences were not significant.

conclusionPDRN and PN may improve tendon healing and decrease fatty degeneration after cuff repair.

Indexed as

PolydeoxyribonucleotidesPolynucleotidesAnimalsDisease Models, AnimalRatsTendonsWound HealingPolydeoxyribonucleotidesPolynucleotidesChronic rotator cuff tearFatty degenerationPolydeoxyribonucleotidePolynucleotideRat modelTendon healing

Identifiers

PMID34387852
PMCPMC8599544

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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.