Evidence map›Paper›PMID 29046123›Full record

ArticleNanotoxicology2017

Differential effects of silver nanoparticles on DNA damage and DNA repair gene expression in Ogg1-deficient and wild type mice.

Sameera Nallanthighal, Cadia Chan, Thomas M Murray, Aaron P Mosier, Nathaniel C Cady, Ramune Reliene

Abstract read
In one paragraph

Article in Nanotoxicology, 2017. 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
–field-weighted citation impact
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.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Genotoxicity of Silver Nanoparticles.Nanomaterials (Basel, Switzerland) · 2020
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. A Current Overview of the Biological and Cellular Effects of Nanosilver.International journal of molecular sciences · 2018
    Review
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

6 authors.

Sameera Nallanthighala Cancer Research Center , University at Albany, State University of New York , Rensselaer , NY , USA.
Cadia Chana Cancer Research Center , University at Albany, State University of New York , Rensselaer , NY , USA.
Thomas M Murrayd Colleges of Nanoscale Sciences and Engineering , SUNY Polytechnic Institute , Albany , NY , USA.
Aaron P Mosierd Colleges of Nanoscale Sciences and Engineering , SUNY Polytechnic Institute , Albany , NY , USA.
Nathaniel C Cadyd Colleges of Nanoscale Sciences and Engineering , SUNY Polytechnic Institute , Albany , NY , USA.
Ramune Relienea Cancer Research Center , University at Albany, State University of New York , Rensselaer , NY , USA.

Funding

Assessment of Carcinogenicity of Nanosilver in DNA Repair Deficient Mouse ModelsR56ES024123 · NIEHS · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI RELIENE, RAMUNE · 2015 to 2015
$150k
NIEHS NIH HHS R56 ES024123
6 · The paper itself

Abstract

Due to extensive use in consumer goods, it is important to understand the genotoxicity of silver nanoparticles (AgNPs) and identify susceptible populations. 8-Oxoguanine DNA glycosylase 1 (OGG1) excises 8-oxo-7,8-dihydro-2-deoxyguanine (8-oxoG), a pro-mutagenic lesion induced by oxidative stress. To understand whether defects in OGG1 is a possible genetic factor increasing an individual's susceptibly to AgNPs, we determined DNA damage, genome rearrangements, and expression of DNA repair genes in Ogg1-deficient and wild type mice exposed orally to 4 mg/kg of citrate-coated AgNPs over a period of 7 d. DNA damage was examined at 3 and 7 d of exposure and 7 and 14 d post-exposure. AgNPs induced 8-oxoG, double strand breaks (DSBs), chromosomal damage, and DNA deletions in both genotypes. However, 8-oxoG was induced earlier in Ogg1-deficient mice and 8-oxoG levels were higher after 7-d treatment and persisted longer after exposure termination. AgNPs downregulated DNA glycosylases Ogg1, Neil1, and Neil2 in wild type mice, but upregulated Myh, Neil1, and Neil2 glycosylases in Ogg1-deficient mice. Neil1 and Neil2 can repair 8-oxoG. Thus, AgNP-mediated downregulation of DNA glycosylases in wild type mice may contribute to genotoxicity, while upregulation thereof in Ogg1-deficient mice could serve as an adaptive response to AgNP-induced DNA damage. However, our data show that Ogg1 is indispensable for the efficient repair of AgNP-induced damage. In summary, citrate-coated AgNPs are genotoxic in both genotypes and Ogg1 deficiency exacerbates the effect. These data suggest that humans with genetic polymorphisms and mutations in OGG1 may have increased susceptibility to AgNP-mediated DNA damage.

Indexed as

AnimalsDNA DamageDNA GlycosylasesDNA RepairDown-RegulationGene ExpressionHumansLeukocytes, MononuclearMetal NanoparticlesMiceMice, Inbred C57BLMice, KnockoutMutagenesisOxidative StressParticle SizeSilverDNA GlycosylasesOgg1 protein, mouseSilvercancergenotoxicitymicronucleusoxidative DNA damageSilver nanoparticles

Identifiers

PMID29046123
PMCPMC5890915

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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.