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- W2090689000 abstract "Photodegradation of ofloxacin (OFX) under aerobic conditions gives rise to N-demethylation, mainly involving coupling of radical cation OFX•+ with superoxide radical anion. Although H2O2 is produced as a byproduct, oxidative damage to DNA to give 8-OH-dGuo is associated with a type II mechanism. When the photosensitizing potentials of OFX and rufloxacin (RFX) are compared under the same conditions, the latter is shown to produce a much higher degree of DNA oxidation despite the close structural similarity. This is explained by a decrease of the triplet energy when sulfur instead of oxygen is attached to position 8 of the fluoroquinolone ring system. As a consequence, phosphate anions are able to quench OFX triplet but not RFX triplet; this reveals that the reaction medium has a strong influence on the photochemistry of OFX and hence on its photobiological properties." @default.
- W2090689000 created "2016-06-24" @default.
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- W2090689000 date "2003-03-29" @default.
- W2090689000 modified "2023-10-10" @default.
- W2090689000 title "Photochemical Properties of Ofloxacin Involved in Oxidative DNA Damage: A Comparison with Rufloxacin" @default.
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- W2090689000 doi "https://doi.org/10.1021/tx034006o" @default.
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