Evidence map›Paper›PMID 33159106›Full record

ArticleScientific reports2020

Load-deformation characteristics of acellular human scalp: assessing tissue grafts from a material testing perspective.

Johann Zwirner, Benjamin Ondruschka, Mario Scholze, Gundula Schulze-Tanzil, Niels Hammer

Abstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

5 authors.

Johann ZwirnerDepartment of Anatomy, University of Otago, Dunedin, New Zealand. medijo@gmx.de.
Benjamin OndruschkaInstitute of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Mario ScholzeInstitute of Materials Science and Engineering, Chemnitz University of Technology, Chemnitz, Germany.
Gundula Schulze-TanzilDepartment of Anatomy and Cell Biology, Paracelsus Medical University, Salzburg and Nuremberg, Nuremberg, Austria.
Niels HammerDepartment of Macroscopic and Clinical Anatomy, Medical University of Graz, Graz, Austria. niels.hammer@medunigraz.at.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acellular matrices seem promising scaffold materials for soft tissue regeneration. Biomechanical properties of such scaffolds were shown to be closely linked to tissue regeneration and cellular ingrowth. This given study investigated uniaxial load-deformation properties of 34 human acellular scalp samples and compared these to age-matched native tissues as well as acellular dura mater and acellular temporal muscle fascia. As previously observed for human acellular dura mater and temporal muscle fascia, elastic modulus (p = 0.13) and ultimate tensile strength (p = 0.80) of human scalp samples were unaffected by the cell removal. Acellular scalp samples showed a higher strain at maximum force compared to native counterparts (p = 0.02). The direct comparison of acellular scalp to acellular dura mater and temporal muscle fascia revealed a higher elasticity (p < 0.01) and strain at maximum force (p = 0.02), but similar ultimate tensile strength (p = 0.47). Elastic modulus and ultimate tensile strength of acellular scalp decreased with increasing post-mortem interval. The elongation behavior formed the main biomechanical difference between native and acellular human scalp samples with elastic modulus and ultimate tensile strength being similar when comparing the two.

Indexed as

Elastic ModulusTensile StrengthAdolescentAdultAgedAged, 80 and overFemaleHumansMaleMiddle AgedScalp

Identifiers

PMID33159106
PMCPMC7648071

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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.