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Miyazaki, M., Akiyama, I., Sakaguchi, M., Naka Shima, E., Okada, M., Kataoka, K. and Huh, N.H. (2002) Improved conditions to induce hepatocytes from rat bone marrow cells in culture. Biochemical and Biophysical Research Communications, 298, 24-30. doi:10.1016/S0006-291X(02)02340-9

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• TITLE: A new risk assessment method for evaluation of oxidative chemicals using catalase mutant mouse primary hepatocytes

  AUTHORS: Da-Hong Wang, Yasuo Ishikawa, Masahiro Miyazaki, Hirofumi Fujita, Ken Tsutsui, Kuniaki Sano, Noriyoshi Masuoka, Keiki Ogino

  KEYWORDS: Catalase-Mutant Mouse Hepatocytes; Reactive Oxygen Species; Hydrogen Peroxide; Hazard Assessment; Lawsone Cytotoxicity

  JOURNAL NAME: Health, Vol.3 No.5, May 19, 2011

  ABSTRACT: We examined the possibility of developing a new risk assessment method for potentially hazardous chemicals by using mouse primary hepatocytes from acatalasemic mice (Csb) and the wild-type (Csa) as predictive model. Chemical-induced cytotoxicities, such as hydrogen peroxide and lawsone, a main hair dye ingredient of henna, were examined. We observed the differences in cell survival between the Csa and Csb in a dose-dependant manner after treatment with either hydrogen peroxide or lawsone, supporting the usefulness of this newly established method for hazard identification of oxidative chemicals in a risk assessment process. More chemicals will be tested to confirm the usefulness of this method for the preliminary screening of oxidative chemicals before animal experimentation.