Evidence map›Paper›PMID 29540716›Full record

ArticleScientific reports2018

Intranasal Delivery of Copper Oxide Nanoparticles Induces Pulmonary Toxicity and Fibrosis in C57BL/6 mice.

Xiaofeng Lai, Hu Zhao, Yong Zhang, Kai Guo, Yuqiao Xu, Suning Chen, Jian Zhang

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 2% 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

51 citing papers in PubMed, 1 synthesis or guideline pooled it, 147 citations in OpenAlex.

  1. Metal Nanoparticles in Infection and Immunity.Immunological investigations · 2020
    Pooled it
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  3. Regulated Cell Death in Idiopathic Pulmonary Fibrosis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026
    Review
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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

7 authors at 3 institutions in 1 country.

Xiaofeng LaiState Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, the Fourth Military Medical University, Xi'an, 710032, P.R. China.
Hu ZhaoFujian Provincial Key Laboratory of Transplant Biology, Fuzhou General Hospital, Xiamen University, Fuzhou, Fujian, 350025, P.R. China.
Yong ZhangDepartment of Respiratory Medicine, Xijing Hospital, the Fourth Military Medical University, Xi'an, 710032, P.R. China.
Kai GuoDepartment of Orthopedics, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, P.R. China.
Yuqiao XuState Key Laboratory of Cancer Biology, Department of Pathology, the Fourth Military Medical University, Xi'an, 710032, P.R. China.
Suning ChenDepartment of Pharmacy, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, 710032, P.R. China. chensning@163.com.
Jian ZhangState Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, the Fourth Military Medical University, Xi'an, 710032, P.R. China. biozhangj@fmmu.edu.cn.
Air Force Medical University · CNXijing Hospital · CNXiamen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Copper oxide nanoparticles (CuO NPs) are widely used as catalysts or semiconductors in material fields. Recent studies have suggested that CuO NPs have adverse genotoxicity and cytotoxicity effects on various cells. However, little is known about the toxicity of CuO NPs following exposure to murine lungs. The purpose of this fundamental research was to investigate whether CuO NPs could induce epithelial cell injury, pulmonary inflammation, and eventually fibrosis in C57BL/6 mice. Our studies showed that CuO NPs aggravated pulmonary inflammation in a dose-dependent manner. CuO NPs induced apoptosis of epithelial cells as indicated by TUNEL staining, flow cytometry and western blot analysis, which was partially caused by increased reactive oxygen species (ROS). In addition, CuO NPs exposure promoted collagen accumulation and expression of the progressive fibrosis marker α-SMA in the lung tissues, indicating that CuO NP inhalation could induce pulmonary fibrosis in C57BL/6 mice. All data provide novel evidence that there is an urgent need to prevent the adverse effects of CuO NPs in the human respiratory system.

Indexed as

AnimalsApoptosisCell SurvivalCopperDisease Models, AnimalDose-Response Relationship, DrugEpithelial CellsMetal NanoparticlesMiceMice, Inbred C57BLMyofibroblastsOxidative StressPneumoniaPulmonary FibrosisReactive Oxygen SpeciesRespiratory MucosaCoppercuprous oxideReactive Oxygen Species

Identifiers

PMID29540716
PMCPMC5852054
OpenAlexW2792593912

What OpenQuestion holds

Textmetadata
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.