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  • Title: Formation of 3,N4-ethenocytidine moieties in RNA by vinyl chloride metabolities in vitro and in vivo.
    Author: Laib RJ, Bolt HM.
    Journal: Arch Toxicol; 1978 Jan 25; 39(3):235-40. PubMed ID: 25061.
    Abstract:
    Rats were exposed to [1,2-14C] vinyl chloride. Liver RNA was isolated, hydrolyzed, and the nucleosides separated on Aminex-A-6. Besides the physiological bases and 1,N6-ethenoadenosine, radioactivity was also incorporated into 3,N4-ethenocytidine. Radioactive 3,N4-ethenocytidine moieties were also formed on incubation of polycytidylic acid with rat liver microsomes, NADPH and [14C] vinyl chloride. These alkylation mechanisms are consistent with the mutagenic and cancerogenic properties of vinyl chloride.
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