Evidence map›Paper›PMID 34223638›Full record

ArticleJournal of periodontology2022

Effects of collagen membranes and bone substitute differ in periodontal ligament cell microtissues and monolayers.

Klara Janjić, Hermann Agis, Andreas Moritz, Xiaohui Rausch-Fan, Oleh Andrukhov

Open access · greenAbstract read
In one paragraph

Article in Journal of periodontology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
5.3field-weighted citation impact, top 3% 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

12 citing papers in PubMed, 24 citations in OpenAlex.

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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 2 institutions in 1 country.

Klara JanjićCompetence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-8057-3567
Hermann AgisAustrian Cluster for Tissue Regeneration, Vienna, Austria.ORCID 0000-0001-9509-1555
Andreas MoritzAustrian Cluster for Tissue Regeneration, Vienna, Austria.
Xiaohui Rausch-FanCenter of Clinical Research, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-8010-1914
Oleh AndrukhovCompetence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-0485-2142
Austrian Cluster for Tissue Regeneration · ATMedical University of Vienna · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBarrier membranes and bone substitute are major tools of guided tissue regeneration (GTR) after periodontal disease. Integrity of the periodontal ligament plays a key role in periodontal health, but its functionality fails to be fully re-established by GTR after disease or trauma. Microtissue models suggest an in vivo-like model to develop novel GTR approaches due to its three-dimensionality. This study aims to assess the effects of collagen membranes and bone substitute on cell viability, adhesion and gene expression of regenerative and inflammatory biomarkers by periodontal ligament cell (PDLC) microtissues.

methodsHuman PDLC microtissues and monolayers were cultured on collagen membranes or bone substitute. After 24 hours incubation, metabolic activity, focal adhesion, mRNA and protein production of collagen-type-I (COL1A1), periostin (POSTN), vascular endothelial growth factor (VEGF), angiogenin (ANG), interleukin (IL)6 and IL8 were measured by resazurin-based toxicity assay, focal adhesion staining, quantitative polymerase chain reaction and enzyme-linked immunosorbent assay, respectively.

resultsPDLC microtissues and monolayers were viable on collagen membranes and bone substitute, but microtissues were less metabolically active. Dominant staining of actin filaments was found in PDLC microtissues on collagen membranes. COL1A1, POSTN, VEGF, ANG and IL6 were modulated in PDLC microtissues on bone substitute, while there were no significant changes on collagen membranes. PDLC monolayers showed a different character of gene expression changes.

conclusionsPDLC microtissues and monolayers react diversely to collagen membranes and bone substitute. Further descriptive and mechanistic tests will be required to clarify the potential of PDLC microtissues as in vivo-like model for GTR.

Indexed as

Bone SubstitutesPeriodontal LigamentCollagenCollagen Type IGuided Tissue Regeneration, PeriodontalHumansMembranes, ArtificialVascular Endothelial Growth Factor ABone SubstitutesCollagenCollagen Type IMembranes, ArtificialVascular Endothelial Growth Factor Abiocompatible materialsbone substitutescell culture techniquesdentistryguided tissue regenerationperiodontal ligament

Identifiers

PMID34223638
PMCPMC9291292
OpenAlexW3182013161

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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.