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Lymphocyte chromosomal aberration assay in radiation biodosimetry

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Author(s): Agrawala Paban | Adhikari J | Chaudhury N

Journal: Journal of Pharmacy and Bioallied Sciences
ISSN 0975-7406

Volume: 2;
Issue: 3;
Start page: 197;
Date: 2010;
Original page

Keywords: Lymphocyte | chromosomal aberration assay | radiation biodosimetry

ABSTRACT
Exposure to ionizing radiations, whether medical, occupational or accidental, leads to deleterious biological consequences like mortality or carcinogenesis. It is considered that no dose of ionizing radiation exposure is safe. However, once the accurate absorbed dose is estimated, one can be given appropriate medical care and the severe consequences can be minimized. Though several accurate physical dose estimation modalities exist, it is essential to estimate the absorbed dose in biological system taking into account the individual variation in radiation response, so as to plan suitable medical care. Over the last several decades, lots of efforts have been taken to design a rapid and easy biological dosimeter requiring minimum invasive procedures. The metaphase chromosomal aberration assay in human lymphocytes, though is labor intensive and requires skilled individuals, still remains the gold standard for radiation biodosimetry. The current review aims at discussing the human lymphocyte metaphase chromosomal aberration assay and recent developments involving the application of molecular cytogenetic approaches and other technological advancements to make the assay more authentic and simple to use even in the events of mass radiation casualties.
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