Evidence map›Paper›PMID 26984477›Full record

ArticleScientific reports2016

A novel hydroxyapatite film coated with ionic silver via inositol hexaphosphate chelation prevents implant-associated infection.

Haruki Funao, Shigenori Nagai, Aya Sasaki, Tomoyuki Hoshikawa, Takashi Tsuji, Yasunori Okada, Shigeo Koyasu, Yoshiaki Toyama, Masaya Nakamura, Mamoru Aizawa and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.4field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Research Progress in Medical Biomaterials for Bone Infections.Journal of functional biomaterials · 2025
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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

12 authors at 2 institutions in 1 country.

Haruki FunaoDepartment of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Shigenori NagaiDepartment of Microbiology and Immunology, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Aya SasakiDepartment of Pathology, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Tomoyuki HoshikawaDepartment of Applied Chemistry, School of Science and Technology, Meiji University, Kawasaki, Kanagawa, JAPAN.
Takashi TsujiDepartment of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Yasunori OkadaDepartment of Pathology, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Shigeo KoyasuDepartment of Microbiology and Immunology, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Yoshiaki ToyamaDepartment of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Masaya NakamuraDepartment of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Mamoru AizawaDepartment of Applied Chemistry, School of Science and Technology, Meiji University, Kawasaki, Kanagawa, JAPAN.
Morio MatsumotoDepartment of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Ken IshiiDepartment of Orthopaedic Surgery, Keio University School of Medicine, Shinjuku, Tokyo, JAPAN.
Keio University · JPMeiji University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Various silver-coated implants have been developed to prevent implant-associated infections, and have shown dramatic effects in vitro. However, the in vivo results have been inconsistent. Recent in vitro studies showed that silver exerts antibacterial activity by mediating the generation of reactive oxygen species in the presence of oxygen. To maintain its antibacterial activity in vivo, the silver should remain in an ionic state and be stably bound to the implant surface. Here, we developed a novel bacteria-resistant hydroxyapatite film in which ionic silver is immobilized via inositol hexaphosphate chelation using a low-heat immersion process. This bacteria-resistant coating demonstrated significant antibacterial activity both in vitro and in vivo. In a murine bioluminescent osteomyelitis model, no bacteria were detectable 21 days after inoculation with S. aureus and placement of this implant. Serum interleukin-6 was elevated in the acute phase in this model, but it was significantly lower in the ionic-silver group than the control group on day 2. Serum C-reactive protein remained significantly higher in the control group than the ionic-silver group on day 14. Because this coating is produced by a low-heat immersion process, it can be applied to complex structures of various materials, to provide significant protection against implant-associated infections.

Indexed as

AnimalsCell LineCell SurvivalChelating AgentsCoated Materials, BiocompatibleC-Reactive ProteinDisease Models, AnimalDurapatiteFemurInterleukin-6IonsLuminescent MeasurementsMiceOsteomyelitisPhytic AcidProstheses and ImplantsChelating AgentsCoated Materials, BiocompatibleC-Reactive ProteinDurapatiteInterleukin-6IonsPhytic AcidSilver

Identifiers

PMID26984477
PMCPMC4794646
OpenAlexW2298007996

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.