Evidence map›Paper›PMID 26692564›Full record

ArticleAdvanced healthcare materials2016

Toward a Molecular Understanding of the Antibacterial Mechanism of Copper-Bearing Titanium Alloys against Staphylococcus aureus.

Mei Li, Zheng Ma, Ye Zhu, Hong Xia, Mengyu Yao, Xiao Chu, Xiaolan Wang, Ke Yang, Mingying Yang, Yu Zhang and 1 more

Abstract read
In one paragraph

Article in Advanced healthcare materials, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
2.9field-weighted citation impact, top 8% 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

63 citing papers in PubMed, 195 citations in OpenAlex.

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  17. Antimicrobial FeScientific reports · 2023
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3 more citing papers are in PubMed but not listed here.

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

11 authors at 5 institutions in 2 countries.

Mei LiDepartment of Orthopedics, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong, 510010, China.
Zheng MaInstitute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China.
Ye ZhuDepartment of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK, 73019, USA.
Hong XiaDepartment of Orthopedics, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong, 510010, China.
Mengyu YaoDepartment of Orthopedics, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong, 510010, China.
Xiao ChuDepartment of Orthopedics, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong, 510010, China.
Xiaolan WangDepartment of Orthopedics, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong, 510010, China.
Ke YangInstitute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China.
Mingying YangInstitute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Yuhangtang Road 866, Hangzhou, 310058, China.
Yu ZhangDepartment of Orthopedics, Guangdong Key Lab of Orthopaedic Technology and Implant Materials, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong, 510010, China.
Chuanbin MaoDepartment of Chemistry and Biochemistry, Stephenson Life Sciences Research Center, University of Oklahoma, Norman, OK, 73019, USA.
General Hospital of Guangzhou Military Command · CNChinese Academy of Sciences · CNZhejiang University · CNUniversity of Oklahoma · USXi'an Jiaotong University · CN

Funding

Tubulin-Binding Upconversion Nanoparticles for Breast-Cancer Imaging and TherapyR21EB015190 · NIBIB · UNIVERSITY OF OKLAHOMA · PI MAO, CHUANBIN · 2012 to 2013
$398k
Selective tumor inhibition by tumor-homing angiogenesis-suppressing nanofibersR21CA200504 · NCI · UNIVERSITY OF OKLAHOMA · PI MAO, CHUANBIN · 2015 to 2016
$361k
NCI NIH HHS CA200504NCI NIH HHS R21 CA200504NIBIB NIH HHS EB015190NIBIB NIH HHS R21 EB015190
6 · The paper itself

Abstract

The antibacterial mechanism of the Cu-containing materials has not been fully understood although such understanding is crucial for the sustained clinical use of Cu-containing antibacterial materials such as bone implants. The aim of this study is to investigate the molecular mechanisms by which the Gram-positive Staphylococcus aureus is inactivated through Cu-bearing titanium alloys (Ti6Al4V5Cu). Cu ions released from the alloys are found to contribute to lethal damage of bacteria. They destroy the permeability of the bacterial membranes, resulting in the leakage of reducing sugars and proteins from the cells. They also promote the generation of bacteria-killing reactive oxygen species (ROS). The ROS production is confirmed by several assays including fluorescent staining of intracellular oxidative stress, detection of respiratory chain activity, and measurement of the levels of lipid peroxidation, catalase, and glutathione. Furthermore, the released Cu ions show obvious genetic toxicity by interfering the replication of nuc (species-specific) and 16SrRNA genes, but with no effect on the genome integrity. All of these effects lead to the antibacterial effect of Ti6Al4V5Cu. Collectively, our work reconciles the conflicting antibacterial mechanisms of Cu-bearing metallic materials or nanoparticles reported in the literature and highlights the potential use of Ti6Al4V5Cu alloys in inhibiting bacterial infections.

Indexed as

AlloysAnti-Bacterial AgentsBacterial ProteinsBiomarkersCell MembraneCopperElectron TransportIonsLipid PeroxidationMicrobial Sensitivity TestsMicrobial ViabilityMutagensOxidative StressOxidoreductasesStaphylococcus aureusTitaniumAlloysAnti-Bacterial AgentsBacterial ProteinsBiomarkersCopperIonsMutagensOxidoreductasesTitaniumtitanium alloy (TiAl6V4)antibacterial mechanismcopperStaphylococcus aureustitanium alloys

Identifiers

PMID26692564
PMCPMC4785048
OpenAlexW2207576671

What OpenQuestion holds

Textmetadata
LicenceTDM
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.