Evidence map›Paper›PMID 32396233›Full record

ArticleJournal of periodontology2020

miRNA-21 deficiency impairs alveolar socket healing in mice.

Franz Josef Strauss, Alexandra Stähli, Reiko Kobatake, Stefan Tangl, Patrick Heimel, Karol Alí Apaza Alccayhuaman, Markus Schosserer, Matthias Hackl, Johannes Grillari, Reinhard Gruber

Open access · hybridAbstract read
In one paragraph

Article in Journal of periodontology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 23% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Epigenetic factors associated with peri-implantitis: a review.Journal of Zhejiang University. Science. B · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. 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

10 authors at 8 institutions in 4 countries.

Franz Josef StraussDepartment of Oral Biology, Medical University of Vienna, Vienna, Vienna, Austria.ORCID 0000-0002-5832-7327
Alexandra StähliDepartment of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.ORCID 0000-0002-5631-3300
Reiko KobatakeDepartment of Advanced Prosthodontics, Hiroshima University Graduate School of Biomedical and Health Sciences, Hiroshima, Hiroshima, Japan.
Stefan TanglKarl Donath Laboratory for Hard Tissue and Biomaterial Research, Division of Oral Surgery, School of Dentistry, Medical University of Vienna, Wein, Wein, Austria.ORCID 0000-0002-9023-4745
Patrick HeimelKarl Donath Laboratory for Hard Tissue and Biomaterial Research, Division of Oral Surgery, School of Dentistry, Medical University of Vienna, Wein, Wein, Austria.ORCID 0000-0002-2499-325X
Karol Alí Apaza AlccayhuamanDepartment of Oral Biology, Medical University of Vienna, Vienna, Vienna, Austria.ORCID 0000-0003-4565-5222
Markus SchossererInstitute of Molecular Biotechnology, University of Natural Resources and Life Sciences, Vienna, Vienna, Austria.ORCID 0000-0003-2025-0739
Matthias HacklTAmiRNA GmbH, Vienna, Austria.ORCID 0000-0002-4136-7293
Johannes GrillariAustrian Cluster for Tissue Regeneration, Medical University of Vienna, Vienna, Austria.ORCID 0000-0001-5474-6332
Reinhard GruberDepartment of Oral Biology, Medical University of Vienna, Vienna, Vienna, Austria.ORCID 0000-0001-5400-9009
Institute of Molecular Biotechnology · ATUniversity of Bern · CHAustrian Center for Medical Innovation and Technology · ATAustrian Cluster for Tissue Regeneration · ATHiroshima University · JPLudwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA · ATMedical University of Vienna · ATUniversity of Zurich · CH

Funding

Austrian Science Fund FWF I 4072
6 · The paper itself

Abstract

backgroundMicroRNAs (miRNAs) are small noncoding RNAs demonstrated as critical post-transcriptional modulators in dental tissues and bone regeneration, particularly miR-21-5p. However, the role of miR-21-5p in the healing of alveolar sockets following tooth extraction remains unknown. In this study we evaluated the influence of miR-21-5p in the healing of alveolar socket after tooth extraction.

methodsEight miR-21-5p knockout mice and eight littermate controls underwent tooth extraction of the upper right incisor. After a healing period of 14 days microCT and histological analyses were performed.

resultsMicroCT analysis showed that the percentage of bone in the extraction socket was significantly higher in the control group than in the miR-21 knockout mice; either in the coronal (39.0%, CI 31.8 to 48.0 versus 23.0%, CI 17.8 to 35.2, P = 0.03) or in the middle part of the alveolar socket (56.0%, CI 50.9 to 62.5 versus 43.5% CI 28.6 to 54.6, P = 0.03). These differences were not noted in the apical part of the extraction socket. Histological analysis supported the microCT findings. Newly bone volume per tissue volume (BV/TV) was significantly higher in the control group when compared to miR-21 knockout mice, 27.4% (CI 20.6 to 32.9) versus 19.0% (CI 14.7 to 21.5, P < 0.05), respectively. Surprisingly, no evident signs of buccal bone resorption were observed in both groups.

conclusionDespite the limitation of one observation period, these findings suggest that miR-21-5p delays the early healing of alveolar socket following tooth extraction. Whether miR-21-5p is essential for healing of alveolar sockets remains to be elucidated.

Indexed as

Alveolar Bone LossMicroRNAsAlveolar ProcessAnimalsMicePeriodontal LigamentTooth ExtractionTooth SocketMicroRNAsbone regenerationmicemicroRNAmir-21tooth extraction

Identifiers

PMID32396233
PMCPMC7818433
OpenAlexW3025390749

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.