Evidence map›Paper›PMID 30389504›Full record

ArticleEBioMedicine2018

An acellular bioresorbable ultra-purified alginate gel promotes intervertebral disc repair: A preclinical proof-of-concept study.

Takeru Tsujimoto, Hideki Sudo, Masahiro Todoh, Katsuhisa Yamada, Koji Iwasaki, Takashi Ohnishi, Naoki Hirohama, Takayuki Nonoyama, Daisuke Ukeba, Katsuro Ura and 2 more

Open access · goldAbstract read
In one paragraph

Article in EBioMedicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% 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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 82 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 1 institution in 1 country.

Takeru TsujimotoFaculty of Medicine and Graduate of Medicine, Department of Orthopedic Surgery, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Hideki SudoFaculty of Medicine and Graduate of Medicine, Department of Advanced Medicine for Spine and Spinal Cord Disorders, Hokkaido University, N15W7, Sapporo 060-8638, Hokkaido, Japan. Electronic address: hidekisudo@yahoo.co.jp.
Masahiro TodohFaculty of Engineering, Division of Human Mechanical Systems and Design, Hokkaido University, N13W8, Sapporo, Hokkaido 060-8628, Japan.
Katsuhisa YamadaFaculty of Medicine and Graduate of Medicine, Department of Orthopedic Surgery, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Koji IwasakiFaculty of Medicine and Graduate of Medicine, Department of Orthopedic Surgery, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Takashi OhnishiFaculty of Medicine and Graduate of Medicine, Department of Orthopedic Surgery, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Naoki HirohamaFaculty of Engineering, Division of Human Mechanical Systems and Design, Hokkaido University, N13W8, Sapporo, Hokkaido 060-8628, Japan.
Takayuki NonoyamaFaculty of Advanced Life Science, Division of Advanced Transdisciplinary Sciences, Hokkaido University, N21W11, Sapporo, Hokkaido 001-0021, Japan.
Daisuke UkebaFaculty of Medicine and Graduate of Medicine, Department of Orthopedic Surgery, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Katsuro UraFaculty of Medicine and Graduate of Medicine, Department of Orthopedic Surgery, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Yoichi M ItoDepartment of Biostatistics, Graduate School of Medicine, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Norimasa IwasakiFaculty of Medicine and Graduate of Medicine, Department of Orthopedic Surgery, Hokkaido University, N15W7, Sapporo, Hokkaido 060-8638, Japan.
Hokkaido University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe current surgical procedure of choice for lumbar intervertebral disc (IVD) herniation is discectomy. However, defects within IVD produced upon discectomy may impair tissue healing and predispose patients to subsequent IVD degeneration. This study aimed to investigate whether the use of an acellular bioresorbable ultra-purified alginate (UPAL) gel implantation system is safe and effective as a reparative therapeutic strategy after lumbar discectomy.

methodsHuman IVD cells were cultured in a three-dimensional system in UPAL gel. In addition, lumbar spines of sheep were used for mechanical analysis. Finally, the gel was implanted into IVD after discectomy in rabbits and sheep in vivo.

findingsThe UPAL gel was biocompatible with human IVD cells and promoted extracellular matrix production after discectomy, demonstrating sufficient biomechanical characteristics without material protrusion.

interpretationThe present results indicate the safety and efficacy of UPAL gels in a large animal model and suggest that these gels represent a novel therapeutic strategy after discectomy in cases of lumbar IVD herniation. FUND: Grant-in-Aid for the Ministry of Education, Culture, Sports, Science, and Technology of Japan, Japan Agency for Medical Research and Development, and the Mochida Pharmaceutical Co., Ltd.

Indexed as

Intervertebral Disc DegenerationAlginatesAnimalsExtracellular MatrixGelsHumansIntervertebral DiscMaleRabbitsSheepAlginatesGelsBiomaterialsBiomechanicsIntervertebral discTissue engineering

Identifiers

PMID30389504
PMCPMC6286260
OpenAlexW2898872070

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.