Evaluation of gamma radiation-induced DNA damage in Aedes aegypti using the comet assay


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Shetty, V. and Shetty, N.J. and Ananthanarayana, S.R. and Jha, S.K. and Chaubey, R.C. (2017) Evaluation of gamma radiation-induced DNA damage in Aedes aegypti using the comet assay. Toxicology and Industrial Health, 33 (12). pp. 930-937. ISSN 07482337


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Official URL: https://doi.org/10.1177/0748233717733599


The study was undertaken to evaluate gamma radiation-induced DNA damage in Aedes aegypti. The comet assay was employed to demonstrate the extent of DNA damage produced in adult male A. aegypti exposed to seven different doses of gamma radiation, ranging from 1 Gy to 50 Gy. DNA damage was measured as the percentage of comet tail DNA. A significant linear increase in DNA damage was observed in all samples; the extent of damage being proportional to the dose of gamma radiation the organism received, except in those treated with 1 Gy. The highest amount of DNA damage was noticed at 1 h postirradiation, which decreased gradually with time, that is, at 3, 6 and 12 h postirradiation. This may indicate repair of the damaged DNA and/or loss of heavily damaged cells as the postirradiation time increased. The comet assay serves as a sensitive and rapid technique to detect gamma radiation-induced DNA damage in A. aegypti. This could be used as a potential biomarker for environmental risk assessment. © 2017, © The Author(s) 2017.

Item Type: Article
Additional Information: cited By 1
Uncontrolled Keywords: biological marker; DNA; free radical; lipid; protein; reactive oxygen metabolite, adult; Aedes aegypti; Anopheles fluviatilis; apoptosis; Article; chromosome aberration; comet assay; controlled study; Culex pipiens; Culex quinquefasciatus; detoxification; DNA damage; DNA repair; DNA strand; dosimetry; gamma irradiation; gamma radiation; genotoxicity; India; ionizing radiation; male; mutant rat strain; nonhuman; radiation dose; risk assessment; wild type
Subjects: Faculty of Science > Environmental and Biological Sciences > Genetics
Divisions: Jnana Bharathi / Central College Campus > Centre for Applied Genetics
Depositing User: Dr. M Anjanappa
Date Deposited: 22 May 2018 06:58
Last Modified: 22 May 2018 06:58
URI: http://eprints-bangaloreuniversity.in/id/eprint/7770

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