Evidence map›Paper›PMID 34406511›Full record

ArticleJournal of materials science. Materials in medicine2021

Fabrication and characterization of microstructure-controllable COL-HA-PVA hydrogels for cartilage repair.

Jie Xie, Wu Wang, Ruibo Zhao, Wei Lu, Liang Chen, Weiping Su, Min Zeng, Yihe Hu

Open access · goldAbstract read
In one paragraph

Article in Journal of materials science. Materials in medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

8 citing papers in PubMed, 13 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

8 authors at 2 institutions in 1 country.

Jie Xie *Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Wu Wang *Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Ruibo ZhaoDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Wei LuDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Liang ChenDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Weiping SuDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China.
Min ZengDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China. xy_zengmin@163.com.
Yihe HuDepartment of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China. orthop_huyh@163.com.
Central South University · CNXiangya Hospital Central South University · CN

Funding

National Natural Science Foundation of China 81672138
6 · The paper itself

Abstract

Polyvinyl alcohol (PVA) hydrogel has gained interest in cartilage repair because of its highly swollen, porosity, and viscoelastic properties. However, PVA has some deficiencies, such as its poor biocompatibility and microstructure. This research aimed to design novel hydroxyapatite (HA)-collagen (COL)-PVA hydrogels. COL was added to improve cell biocompatibility, and the microstructure of the hydrogels was controlled by fused deposition modeling (FDM). The feasibility of the COL-HA-PVA hydrogels in cartilage repair was evaluated by in vitro and in vivo experiments. The scanning electron microscopy results showed that the hybrid hydrogels had interconnected macropore structures that contained a COL reticular scaffold. The diameter of the macropore was 1.08-1.85 mm, which corresponds to the diameter of the denatured PVA column. The chondrocytes were then seeded in hydrogels to assess the cell viability and formation of the cartilage matrix. The in vitro results revealed excellent cellular biocompatibility. Osteochondral defects (8 mm in diameter and 8 mm in depth) were created in the femoral trochlear of goats, and the defects were implanted with cell-seeded hydrogels, cell-free hydrogels, or a blank control. The in vivo results showed that the COL-HA-PVA hydrogels effectively repaired cartilage defects, especially the conditions inoculated with chondrocyte in advance. This research suggests that the COL-HA-PVA hydrogels have promising application in cartilage repair.

Indexed as

AnimalsBiocompatible MaterialsCartilageCell SurvivalChondrocytesCollagenCross-Linking ReagentsElasticityGoatsHydrogelsIn Vitro TechniquesIridoidsPolyvinyl AlcoholPorosityTissue EngineeringTissue ScaffoldsBiocompatible MaterialsCollagenCross-Linking ReagentsgenipinHydrogelsIridoidsPolyvinyl Alcoholpolyvinyl alcohol hydrogel

Identifiers

PMID34406511
PMCPMC8373762
OpenAlexW3194982471

What OpenQuestion holds

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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.