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  • A basic glycopeptide antineoplastic antibiotic isolated from Streptomyces verticillus. Bleomycin antibiotics form complexes with iron that react with molecular oxygen to produce superoxide and hydroxyl free radicals, causing single- and double-stranded breaks in DNA. These reactive oxygen species also induce lipid peroxidation, carbohydrate oxidation, and alterations in prostaglandin synthesis and degradation.
  • A mixture of glycopeptide antineoplastic antibiotics isolated from the bacterium Streptomyces verticillus. Bleomycin forms complexes with iron that reduce molecular oxygen to superoxide and hydroxyl radicals which cause single- and double-stranded breaks in DNA; these reactive oxygen species also induce lipid peroxidation, carbohydrate oxidation, and alterations in prostaglandin synthesis and degradation.
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