title: Enhancement of the mutagenicities of N-methyl-N'-nitro-N-nitrosoguanidine and N-methyl-N-nitrosourea by glucose.
abstract: The mutagenicity of N-methyl-N'-nitro-N-nitrosoguanidine to Salmonella typhimurium hisG46 was enhanced by pre-incubating the chemical with bacteria in sodium phosphate buffer. Addition of glucose (to 15 mM) to the pre-incubation mixture further enhanced the mutagenicity. Pre-incubation with glucose also increased the mutagenicity of N-methyl-N-nitrosourea. Fructose, galactose, pyruvate and succinate also enhanced the mutagenicity of N-methyl-N'-nitro-N-nitrosoguanidine. The effect of glucose was observed with S. typhimurium strains hisG46, TA1975, TA1950, TA1535 and TA100.
mesh_terms: D001711:Biotransformation / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D005947:Glucose / Q000494:pharmacology*; D008769:Methylnitronitrosoguanidine / Q000494:pharmacology*; D008770:Methylnitrosourea / Q000494:pharmacology*; D009154:Mutation; D009607:Nitrosourea Compounds / Q000494:pharmacology*; D012486:Salmonella typhimurium / Q000187:drug effects / Q000235:genetics*
chemical_list: D009607:Nitrosourea Compounds; D008769:Methylnitronitrosoguanidine; D008770:Methylnitrosourea; D005947:Glucose