alexa Single strand dna breaks in human lymphocytes exposed to para-phenylenediamine and its derivatives.


Journal of Membrane Science & Technology

Author(s): Chye SM, Hseu YC, Liang SH, Chen CH, Chen SC

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Abstract Para-Phenylenediamine (PPD), the main aromatic amines used in the hair dye formation, and its four derivatives (2-chloro-p-phenylenediamine, 4-chloro-o-phenylenediamine, 2-nitro-p-phenylenediamine, and 4-nitro-o-phenylenediamine) were examined for their potential to produce single strand DNA breaks in human lymphocytes using the alkaline comet assay. Results revealed that all the tested chemicals within the range of doses from 100 microM to 500 microM showed the genotoxicity in a dose-dependent manner after the incubation of lymphocytes with these chemicals for 2 h. In this study, we first reported that PPD and its four derivatives can elicit the type of single strand breaks in human lymphocytes. This article was published in Bull Environ Contam Toxicol and referenced in Journal of Membrane Science & Technology

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