Journal
TOXICOLOGY LETTERS
Volume 208, Issue 3, Pages 300-307Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.toxlet.2011.11.004
Keywords
Granite particles; Nanotoxicity; ROS; TNF-alpha; IL-1 beta; IL-6
Categories
Funding
- Council of Scientific and Industrial Research, New Delhi, India [NWP-35]
Ask authors/readers for more resources
Occupational exposure of granite workers is well known to cause lung impairment and silicosis. Toxicological profiles of different size particles of granite dust, however, are not yet understood. Present evaluation of micro- and nano-particles of granite dust as on human lung fibroblast cells IMR-90, revealed that their toxic effects were dose-dependent, and nanoparticles in general were more toxic. In this study we first demonstrated that nanoparticles caused oxidative stress, inflammatory response and genotoxicity, as seen by nearly 2 fold induction of ROS and LPO, mRNA levels of TNF-alpha. and IL-1 beta, and induction in micronuclei formation. All these were significantly higher when compared with the effect of micro particles. Thus, the study suggests that separate health safety standards would be required for granite particles of different sizes. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available