Evidence map›Paper›PMID 36512177›Full record

ArticleTissue engineering and regenerative medicine2023

rhBMP-2-Conjugated Three-Dimensional-Printed Poly(L-lactide) Scaffold is an Effective Bone Substitute.

Yu Ri Hong, Tae-Ho Kim, Kyeong-Hyeon Park, Jumi Kang, Kyueui Lee, Eui Kyun Park, Tae-Geon Kwon, Jeong Ok Lim, Chang-Wug Oh

Open access · greenAbstract read
In one paragraph

Article in Tissue engineering and regenerative medicine, 2023. 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
1.6field-weighted citation impact, top 18% 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, 21 citations in OpenAlex.

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  10. Bioactive Bone Substitute in a Rabbit Ulna Model: Preclinical Study.Tissue engineering and regenerative medicine · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Yu Ri Hong *Joint Institute for Regenerative Medicine, Kyungpook National University, Bio-Medical Research Institute, Kyungpook National University Hospital, Daegu, 41940, Republic of Korea.ORCID 0000-0002-3238-1990
Tae-Ho Kim *Joint Institute for Regenerative Medicine, Kyungpook National University, Bio-Medical Research Institute, Kyungpook National University Hospital, Daegu, 41940, Republic of Korea.ORCID 0000-0003-0062-1774
Kyeong-Hyeon ParkSchool of Medicine, Kyungpook National University, Daegu, 41944, Republic of Korea.ORCID 0000-0001-7215-6176
Jumi KangDepartment of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea.ORCID 0000-0002-0937-9876
Kyueui LeeDepartment of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu, 41566, Republic of Korea.ORCID 0000-0002-1622-8806
Eui Kyun ParkDepartment of Oral Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu, 41940, Republic of Korea.ORCID 0000-0001-8006-6402
Tae-Geon KwonDepartment of Oral and Maxillofacial Surgery, School of Dentistry, Kyungpook National University, Daegu, 41940, Republic of Korea.ORCID 0000-0003-2799-0510
Jeong Ok LimJoint Institute for Regenerative Medicine, Kyungpook National University, Bio-Medical Research Institute, Kyungpook National University Hospital, Daegu, 41940, Republic of Korea. jolim@knu.ac.kr.ORCID 0000-0001-8482-9315
Chang-Wug OhDepartment of Orthopedic Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944, Republic of Korea. cwoh@knu.ac.kr.ORCID 0000-0002-1224-0787
Kyungpook National University Hospital · KRKyungpook National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBone growth factors, particularly bone morphogenic protein-2 (BMP-2), are required for effective treatment of significant bone loss. Despite the extensive development of bone substitutes, much remains to be desired for wider application in clinical settings. The currently available bone substitutes cannot sustain prolonged BMP-2 release and are inconvenient to use. In this study, we developed a ready-to-use bone substitute by sequential conjugation of BMP to a three-dimensional (3D) poly(L-lactide) (PLLA) scaffold using novel molecular adhesive materials that reduced the operation time and sustained prolonged BMP release.

methodsA 3D PLLA scaffold was printed and BMP-2 was conjugated with alginate-catechol and collagen. PLLA scaffolds were conjugated with different concentrations of BMP-2 and evaluated for bone regeneration in vitro and in vivo using a mouse calvarial model. The BMP-2 release kinetics were analyzed using ELISA. Histological analysis and micro-CT image analysis were performed to evaluate new bone formation.

resultsThe 3D structure of the PLLA scaffold had a pore size of 400 µm and grid thickness of 187-230 µm. BMP-2 was released in an initial burst, followed by a sustained release for 14 days. Released BMP-2 maintained osteoinductivity in vitro and in vivo. Micro-computed tomography and histological findings demonstrate that the PLLA scaffold conjugated with 2 µg/ml of BMP-2 induced optimal bone regeneration.

conclusionThe 3D-printed PLLA scaffold conjugated with BMP-2 enhanced bone regeneration, demonstrating its potential as a novel bone substitute.

Indexed as

Bone SubstitutesBone Morphogenetic Protein 2Bone RegenerationHumansPolyestersRecombinant ProteinsX-Ray MicrotomographyBMP2 protein, humanBone Morphogenetic Protein 2Bone SubstitutesPolyesterspoly(lactide)Recombinant ProteinsBone morphogenetic protein 2Bone regenerationPLLA scaffoldPrintingThree-dimensional

Identifiers

PMID36512177
PMCPMC9852414
OpenAlexW4311286040

What OpenQuestion holds

Textmetadata
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.