2018
DOI: 10.21577/0100-4042.20170271
|View full text |Cite
|
Sign up to set email alerts
|

EFEITOS DE NANOPARTÍCULAS COMERCIAIS DE ÓXIDO DE FERRO (Fe2O3): CITOTOXICIDADE, GENOTOXICIDADE E ESTRESSE OXIDATIVO

Abstract: EFFECTS OF COMMERCIAL NANOPARTICLES OF IRON OXIDE (Fe 2 O 3 ): CYTOTOXICITY, GENOTOXICITY AND OXIDATIVE STRESS. This study presents the toxicological effects of iron nanoparticles (NP Fe 2 O 3 ) using in vitro and in vivo tests. Initially nanoparticles were characterized physic-chemically followed by evaluation of cell viability using different cell lines. Allium cepa test and comet assay (cell lines and Danio rerio) were used for evaluation of genotoxicity. Oxidative stress analyses were performed using D. re… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
1
0
1

Year Published

2019
2019
2023
2023

Publication Types

Select...
4

Relationship

0
4

Authors

Journals

citations
Cited by 4 publications
(2 citation statements)
references
References 33 publications
0
1
0
1
Order By: Relevance
“…In addition, abnormalities regarding mutations and/or changes in mitotic behavior expected for cell division are not seen. Batista-Gallep et al 60 observed that at low concentrations of Fe 2 O 3 NPs (1.96 × 10 9 NPs/mL), the toxicity effect on A. cepa was lower when compared to high concentrations (39 × 10 9 NPs/mL). Kaygisiz and Cigerci 61 found that in particles smaller than 100 nm, independent of the concentration present, the hematite particles exhibited chromosomal alterations in the mitotic division.…”
Section: Resultsmentioning
confidence: 99%
“…In addition, abnormalities regarding mutations and/or changes in mitotic behavior expected for cell division are not seen. Batista-Gallep et al 60 observed that at low concentrations of Fe 2 O 3 NPs (1.96 × 10 9 NPs/mL), the toxicity effect on A. cepa was lower when compared to high concentrations (39 × 10 9 NPs/mL). Kaygisiz and Cigerci 61 found that in particles smaller than 100 nm, independent of the concentration present, the hematite particles exhibited chromosomal alterations in the mitotic division.…”
Section: Resultsmentioning
confidence: 99%
“…Portanto, ambientes contaminados por metais pesados podem induzir a uma variedade de efeitos genotóxicos, tais como, quebras de fita simples e dupla, oxidação de bases nucléicas, alterações nos processos de reparo do DNA, entre outros (Monteiro, 2009). Alguns mecanismos pelos quais metais pesados podem causar genotoxicidade são: i) ferro: geração de espécies reativas de oxigênio (EROs), que podem levar ao estresse oxidativo, processos inflamatórios nas células, ruptura das mitocôndrias, danos ao DNA e apoptose (Batista-Gallep et al, 2018); ii) manganês: incorporação errônea de bases nitrogenadas (Penteado, 2018); iii) cromo: modificação de base nitrogenadas do DNA e quebras de fita; iv) cádmio: indução de estresse oxidativo, substituições e oxidação de bases nitrogenadas, deleções e pontos de mutações ev) chumbo: indução de danos oxidativos, alteração na transcrição gênica, mitogênese, eventos carcinogênicos envolvidos em danos ao DNA, além de alterações genotóxicas indiretas (Neeratanaphan et al, 2020;Arunachalam et al, 2013).…”
Section: Discussionunclassified