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Int. J. Environ. Res. Public Health 2016, 13(8), 802; doi:10.3390/ijerph13080802

Effects of Long-Term Exposure to 60 GHz Millimeter-Wavelength Radiation on the Genotoxicity and Heat Shock Protein (Hsp) Expression of Cells Derived from Human Eye

1
Laboratory of Applied Radio Engineering for Humanosphere, Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
2
Department of Electrical & Electronic Engineering, Graduate Schools of Science and Engineering, Tokyo Metropolitan University, 1-1, Hachioji, Tokyo 192-0397, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Irena Cosic
Received: 22 June 2016 / Revised: 26 July 2016 / Accepted: 4 August 2016 / Published: 8 August 2016
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Abstract

Human corneal epithelial (HCE-T) and human lens epithelial (SRA01/04) cells derived from the human eye were exposed to 60 gigahertz (GHz) millimeter-wavelength radiation for 24 h. There was no statistically significant increase in the micronucleus (MN) frequency in cells exposed to 60 GHz millimeter-wavelength radiation at 1 mW/cm2 compared with sham-exposed controls and incubator controls. The MN frequency of cells treated with bleomycin for 1 h provided positive controls. The comet assay, used to detect DNA strand breaks, and heat shock protein (Hsp) expression also showed no statistically significant effects of exposure. These results indicate that exposure to millimeter-wavelength radiation has no effect on genotoxicity in human eye cells. View Full-Text
Keywords: millimeter-waves; cellular genotoxicity; micronucleus formation; comet assay; heat shock protein; long-term exposure; human eye cells millimeter-waves; cellular genotoxicity; micronucleus formation; comet assay; heat shock protein; long-term exposure; human eye cells
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MDPI and ACS Style

Koyama, S.; Narita, E.; Shimizu, Y.; Suzuki, Y.; Shiina, T.; Taki, M.; Shinohara, N.; Miyakoshi, J. Effects of Long-Term Exposure to 60 GHz Millimeter-Wavelength Radiation on the Genotoxicity and Heat Shock Protein (Hsp) Expression of Cells Derived from Human Eye. Int. J. Environ. Res. Public Health 2016, 13, 802.

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