Xanthine oxidase-mediated mutagenicity of the bladder carcinogen 4-nitrobiphenyl.

Abstract

Xanthine oxidase catalyzed mutagenicity of 4-nitrobiphenyl (NBP), a dog-bladder carcinogen, was tested in Ames assay using Salmonella typhimurium TA98 strains. NBP was active as a mutagen in the parent strain TA98 which is proficient in nitroreductase, while it was inactive in the strain TA98NR which is deficient in nitroreductase. However, preincubation of… (More)

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