Evidence map›Paper›PMID 33014353›Full record

ArticleBone & joint research2020

In vivo cartilage regeneration in a multi-layered articular cartilage architecture mimicking scaffold.

Karthikeyan Rajagopal, Sowmya Ramesh, Noel Malcolm Walter, Aditya Arora, Dhirendra S Katti, Vrisha Madhuri

Open access · goldAbstract read
In one paragraph

Article in Bone & joint research, 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
1.9field-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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Material-Assisted Strategies for Osteochondral Defect Repair.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
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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

6 authors at 2 institutions in 1 country.

Karthikeyan RajagopalDepartment of Paediatric Orthopaedics, Christian Medical College, Vellore, India.ORCID 0000-0002-0654-0484
Sowmya RameshDepartment of Paediatric Orthopaedics, Christian Medical College, Vellore, India.ORCID 0000-0002-4086-9603
Noel Malcolm WalterDepartment of Forensic Medicine, Christian Medical College, Vellore, India.ORCID 0000-0002-8897-1439
Aditya AroraDepartment of Biological Sciences & Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India.ORCID 0000-0002-8897-1439
Dhirendra S KattiDepartment of Biological Sciences & Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India.ORCID 0000-0001-8379-1706
Vrisha MadhuriDepartment of Paediatric Orthopaedics, Christian Medical College, Vellore, India.ORCID 0000-0003-4494-222X
Christian Medical College, Vellore · INIndian Institute of Technology Kanpur · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsExtracellular matrix (ECM) and its architecture have a vital role in articular cartilage (AC) structure and function. We hypothesized that a multi-layered chitosan-gelatin (CG) scaffold that resembles ECM, as well as native collagen architecture of AC, will achieve superior chondrogenesis and AC regeneration. We also compared its in vitro and in vivo outcomes with randomly aligned CG scaffold.

methodsRabbit bone marrow mesenchymal stem cells (MSCs) were differentiated into the chondrogenic lineage on scaffolds. Quality of in vitro regenerated cartilage was assessed by cell viability, growth, matrix synthesis, and differentiation. Bilateral osteochondral defects were created in 15 four-month-old male New Zealand white rabbits and segregated into three treatment groups with five in each. The groups were: 1) untreated and allogeneic chondrocytes; 2) multi-layered scaffold with and without cells; and 3) randomly aligned scaffold with and without cells. After four months of follow-up, the outcome was assessed using histology and immunostaining.

resultsIn vitro testing showed that the secreted ECM oriented itself along the fibre in multi-layered scaffolds. Both types of CG scaffolds supported cell viability, growth, and matrix synthesis. In vitro chondrogenesis on scaffold showed an around 400-fold increase in collagen type 2

conclusionWe demonstrated that MSCs loaded CG scaffold with multi-layered zonal architecture promoted superior hyaline AC regeneration.Cite this article:

Indexed as

Articular cartilageChondrogenic differentiationMesenchymal stem cellMulti-layered scaffoldRabbit osteochondral model.

Identifiers

PMID33014353
PMCPMC7510940
OpenAlexW3091536189

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.