Evidence map›Paper›PMID 33936917›Full record

ArticlePlastic and reconstructive surgery. Global open2021

Safety of Silk-elastin Sponges in Patients with Chronic Skin Ulcers: A Phase I/II, Single-center, Open-label, Single-arm Clinical Trial.

Kazuo Noda, Katsuya Kawai, Yoshitaka Matsuura, Toshiko Ito-Ihara, Yoko Amino, Mika Ushimaru, Akemi Kinoshita, Harue Tada, Hiroyasu Abe, Satoshi Morita and 4 more

Open access · goldAbstract read
In one paragraph

Article in Plastic and reconstructive surgery. Global open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 20% 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, 15 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Review
  4. Silk-elastin sponge is effective for burn therapy after surgical debridement.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Silk Bioconjugates: From Chemistry and Concept to Application.ACS biomaterials science & engineering · 2024
    Review
  9. Article
  10. Article
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

14 authors at 3 institutions in 1 country.

Kazuo NodaDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Katsuya KawaiDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Yoshitaka MatsuuraDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Toshiko Ito-IharaInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Yoko AminoInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Mika UshimaruInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Akemi KinoshitaInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Harue TadaInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Hiroyasu AbeInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Satoshi MoritaInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Akira ShimizuInstitute for Advancement of Clinical and Translational Science (iACT), Kyoto University Hospital, Kyoto, Japan.
Itaru TsugeDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Michiharu SakamotoDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Naoki MorimotoDepartment of Plastic and Reconstructive Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Kyoto University Hospital · JPKyoto University · JPNagahama City Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough traditional wound dressings such as collagen scaffolds promote granulation tissue formation, the efficacy of these dressings in chronic wounds is limited because of high susceptibility to bacterial growth. Biomaterials that can be applied to chronic wounds should have an anti-bacterial function. We previously reported that administering a silk-elastin solution that forms moisturizing hydrogels to wound surfaces of diabetic mice reduced bacterial growth and promoted granulation tissue formation compared with control or carboxymethyl cellulose hydrogels. We hypothesized that silk-elastin promotes wound healing in human chronic wounds by suppressing bacterial growth.

methodsAn open-label, clinical case series was conducted with a prospective, single-arm design at Kyoto University Hospital in Kyoto, Japan. In this study, 6 patients with chronic skin ulcers of any origin (2 < ulcer area (cm

resultsPoor hydrogel formation, possibly due to continuous exudation, was observed. No serious adverse events were noted. Two patients discontinued treatment on day 6 and day 7, respectively, due to inflammation, but they were not infected. The other 4 patients completed the 14-day silk-elastin sponge treatment without infection.

conclusionSilk-elastin sponge is safe for chronic skin ulcers, and its ability to promote wound healing should be determined by confirmatory clinical trials.

Identifiers

PMID33936917
PMCPMC8081464
OpenAlexW3158840578

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.