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Journal of Environmental Pathology, Toxicology and Oncology
IF: 1.625 5-Year IF: 1.63 SJR: 0.402 SNIP: 0.613 CiteScore™: 2.3

ISSN Print: 0731-8898
ISSN Online: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.v26.i4.30
pages 263-272

Radioprotection against DNA Damage by an Extract of Indian Green mussel, Perna viridis (L)

Sreekumar P. Kumaran
National Institute of Oceanography, Dona Paula, Goa-403 004, India
Binoj C. Kutty
Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400 085, India
Anil Chatterji
National Institute of Oceanography, Dona Paula, Goa-403 004, India
Parameswaran P. Subrayan
National Institute of Oceanography, Dona Paula, Goa-403 004, India
Kaushala Prasad Mishra
Department of Life Sciences, University of Mumbai, Mumbai, India; Nehru Gram Bharati University, Allahabad, UP, India; Foundation for Education and Research, India and BM International Research Centre, Mumbai, India

ABSTRACT

This study describes the radioprotective ability of a hydrolysate prepared using an enzymeacid hydrolysis method from the green mussel Perna viridis in terms of its ability to prevent radiation-induced damage in plasmid DNA, cell death, reactive oxygen species (ROS) formation, and DNA damage in mice lymphocytes. The mussel hydrolysate (MH) present during irradiation showed significant protection from γ-radiation-induced strand breaks in plasmid DNA as evaluated by gel electrophoresis. Viability studies by trypan blue dye exclusion and MTT assay showed that preincubation of mice splenic lymphocytes with MH protected them from γ-radiation-mediated killing. Moreover, the presence of MH during irradiation of isolated mice lymphocytes significantly decreased the DNA damage, as measured by comet assay. Measurement of intracellular ROS by dichlorofluorescein fluorescence revealed that the presence of MH effectively reduced the ROS generated in lymphocytes by both chemical method and γ-irradiation. Prevention of DNA damage both in plasmid and lymphocytes and cell death in lymphocytes appears correlated with reduction of oxidatively generated free radicals. It is concluded that protection against radiation-induced cell death and DNA damage by MH was attributable to reduction of reactive free radical species generated by γ-radiation.


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