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  • Title: Enhancement of benzo(a)pyrene-induced sister chromatid exchanges as a consequence of glutathione depletion in vivo.
    Author: Bayer U, Younes M, Siegers CP.
    Journal: Toxicol Lett; 1981 Dec; 9(4):339-43. PubMed ID: 6277046.
    Abstract:
    Pretreatment of Chinese hamsters with phorone (diisopropylidene acetone) decreased hepatic glutathione (GSH) content to about 20% of the control level after 2 hours. The GSH S-transferase activities were not affected. As a consequence of reduced detoxication by GSH the potency of 3,4-benzo(a)pyrene to induce sister chromatid exchanges in vivo in bone marrow cells was significantly enhanced. Chemically induced distinct alterations in metabolism of mutagens/carcinogens are proposed as experimental models for pharmacogenetic and toxigenetic studies.
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