scispace - formally typeset
Open AccessJournal ArticleDOI

Pulmonary Toxicity Following an Intratracheal Instillation of Nickel Oxide Nanoparticle Agglomerates

Reads0
Chats0
TLDR
Pulmonary Toxicity Following an Intratracheal Instillation of Nickel Oxide Nanoparticle Agglomerates: Yasuo Morimoto, et al.
Abstract
Pulmonary Toxicity Following an Intratracheal Instillation of Nickel Oxide Nanoparticle Agglomerates: Yasuo M ori M oto , et al. Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health, Japan— Objective: We examined the pulmonary toxicity of nickel oxide nanoparticle agglomerates in the rat lung following an intratracheal instillation. Methods: The weighted average surface primary diameter of nickel oxide nanoparticles was 8.41 nm, and the count median diameter of nickel oxide nanoparticle agglomerates suspended in saline was 1.34 µm. Male Wistar rats were exposed to 1 mg (3.3 mg/kg) of nickel oxide nanoparticles intratracheally. The control group received intratracheal instillation of saline. Rats were dissected 3 days, 1 wk, 1 mo, 3 mo, and 6 mo after the instillation. Cytokine-induced neutrophil chemoattractant (CINC)- 2αβ in the lung tissue was determined by quantitative measurement of protein by ELISA. Results: The total cell count in bronchoalveolar lavage fluid (BALF) was increased persistently from 3 days to 6 mo. The neutrophil counts in BALF were also increased at 3 days, 1 wk, 3 mo, and 6 mo. In the lung tissue, infiltration of mainly neutrophils and alveolar macrophages was observed in alveoli from 3 days to 6 mo. The CINC-2αβ concentration was elevated from 3 days to 6 mo in the lung tissue. Conclusions: These results showed that micron-sized nickel oxide nanoparticle agglomerates also induced a persistent inflammatory response. (J Occup Health 2011; 53: 293-295)

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

Genotoxicity and carcinogenicity of cobalt-, nickel- and copper-based nanoparticles (Review)

TL;DR: This review intends to summarize the current knowledge on the genotoxic and carcinogenic potential of cobalt-, nickel- and copper-based nanoparticles indicated in in vitro and in vivo mammalian studies and include studies that have reported epigenetic factors involving these nanoparticles.
Journal ArticleDOI

Nickel oxide nanoparticles exert cytotoxicity via oxidative stress and induce apoptotic response in human liver cells (HepG2).

TL;DR: This is the first report demonstrating that NiO NPs caused cytotoxicity via ROS and induced apoptosis in HepG2 cells, which is likely to be mediated through bax/bcl-2 pathway.
Journal ArticleDOI

Nickel oxide nanoparticles induce inflammation and genotoxic effect in lung epithelial cells

TL;DR: Nickel oxide nanoparticles toxicity has been evaluated in the human pulmonary epithelial cell lines and their ability in inducing DNA damage responses has been demonstrated, confirming the cytotoxic and pro-inflammatory potential of NiONPs.
Journal ArticleDOI

Recent progress in studies of metallic nickel and nickel-based nanoparticles' genotoxicity and carcinogenicity.

TL;DR: This mini-review intends to summarize the current knowledge on the genotoxicity and carcinogenicity potential of metallic nickel and nickel-based nanoparticles implicated in in vitro and in vivo mammalian studies.
Journal ArticleDOI

Magnetic nanovectors for drug delivery

TL;DR: This review will assess the most recent developments and current status of magnetically responsive nanoparticles (MNP) that are composed of one or more of the three elements that are ferromagnetic at physiological temperature: nickel, cobalt and iron.
References
More filters
Journal ArticleDOI

Comparative pulmonary toxicity study of nano-TiO2 particles of different sizes and agglomerations in rats: Different short- and long-term post-instillation results

TL;DR: Two intratracheal instillation experiments with nano-size titanium dioxide (TiO(2) particles of different sizes and agglomerations were conducted in rats to compare the biological responses induced by the different particles, indicating that both short- and long-term effects should be evaluated when assessing the toxicity of nanoparticles.
Journal ArticleDOI

Pathological features of different sizes of nickel oxide following intratracheal instillation in rats.

TL;DR: Analysis of morphological and qualitative changes over time in the development of inflammation and collagen deposition in lung tissue after intratracheal instillation of two sizes of nickel oxide in rats suggested that submicrometer nano-nickel oxide is associated with greater toxicity, as for crystalline silica, than micrometer-sized nickel oxide.
Related Papers (5)