نتایج جستجو برای: hematoporphyrin
تعداد نتایج: 664 فیلتر نتایج به سال:
The malondialdehyde (MDA) contents in rat liver lysosomes increased in vitro by 400 nm ultraviolet light irradiation in the presence of hematoporphyrin (HP), but no changes were observed without HP. The MDA formation under the presence of HP was prevented by addition of vitamin E as antioxidant.
Hematoporphyrin derivative, used in photodynamic therapy of cancer, was found to generate the cysteinyl free radical as seen by spin-trapping. Oxygen appears to be an absolute requirement for thiyl radical production. Singlet oxygen may be the initiating species since azide inhibits oxygen uptake and radical production. In addition, the hydroxyl radical, or a radical with similar reactivity, is...
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