Evidence map›Paper›PMID 22031592›Full record

ArticleOtolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery2012

In vivo implantation of tissue-engineered human nasal septal neocartilage constructs: a pilot study.

Angela A Chang, Marsha S Reuther, Kristen K Briggs, Barbara L Schumacher, Gregory M Williams, Maripat Corr, Robert L Sah, Deborah Watson

Abstract readComparative Study
In one paragraph

Article in Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 40 citations in OpenAlex.

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  8. Tissue engineering in otorhinolaryngology: A knowledge-based analysis.Laryngoscope investigative otolaryngology · 2024
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  18. Shape fidelity of native and engineered human nasal septal cartilage.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2013
    Article
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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

8 authors at 2 institutions in 1 country.

Angela A ChangDivision of Otolaryngology-Head and Neck Surgery, University of California, San Diego, La Jolla, California, USA.
Marsha S Reuther
Kristen K Briggs
Barbara L Schumacher
Gregory M Williams
Maripat Corr
Robert L Sah
Deborah Watson
University of California, San Diego · USLa Jolla Bioengineering Institute · US

Funding

TISSUE ACQUISITION, MORPHOLOGY, AND CELL CULTUREP01AG007996 · NIA · UNIVERSITY OF CALIFORNIA SAN DIEGO · PI SAH, ROBERT L · 1989 to 2016
$26.0M
Developing Articular Cartilage: Function &RemodelingR01AR044058 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SAH, ROBERT L · 2000 to 2010
$3.3M
NIAMS NIH HHS R01 AR044058NIA NIH HHS P01 AG007996
6 · The paper itself

Abstract

objectiveTo determine the in vivo biocompatibility of septal neocartilage constructs developed in vitro by an alginate intermediate step. STUDY

designProspective, animal model.

settingResearch laboratory. SUBJECTS AND

methodsA murine model was used to examine the maturation of neocartilage constructs in vivo. Chondrocytes collected from patients undergoing septoplasty were expanded in monolayer and suspended in alginate beads for 3-dimensional culture in media containing human serum and growth factors. After in vitro incubation for 5 weeks, the constructs were implanted in the dorsum of athymic mice for 30 and 60 days (n = 9). After the mice were sacrificed, the constructs were recovered for assessment of their morphological, histochemical, biochemical, and biomechanical properties.

resultsThe mice survived and tolerated the implants well. Infection and extrusion were not observed. Neocartilage constructs maintained their general shape and size and demonstrated cell viability after implantation. The implanted constructs were firm and opaque, sharing closer semblance to native septal tissue relative to the gelatinous, translucent preimplant constructs. Histochemical staining with hematoxylin and eosin (H&E) revealed that the constructs exhibited distinct morphologies characteristic of native tissue, which were not observed in preimplant constructs. DNA and type II collagen increased with duration of implantation, whereas type I collagen and glycoaminoglycans (GAG) decreased. Mechanical testing of a 60-day implanted construct demonstrated characteristics similar to native human septal cartilage.

conclusionsNeocartilage constructs are viable in an in vivo murine model. The histologic, biochemical, and biomechanical features of implanted constructs closely resemble native septal tissue when compared with preimplant constructs.

Indexed as

Tissue EngineeringAnimalsDisease Models, AnimalFollow-Up StudiesGraft SurvivalHumansMiceMice, NudeNasal CartilagesNasal SeptumNose Deformities, AcquiredPilot ProjectsProspective StudiesTreatment Outcome

Identifiers

PMID22031592
PMCPMC4352411
OpenAlexW2133483374

What OpenQuestion holds

Textmetadata
LicenceTDM
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.