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- W1977965705 abstract "Cancer is today a major problem of public health. Unfortunately, the current treatments remain still too often impotent or too heavy compared to the gross national product of many countries. The use of PDT in the treatment of the malignant tumours currently raises great hopes. This physicochemical method is based on the combined action of a nontoxic drug given systematically to the patient and of the visible light delivered locally to the tumour using optical fibres. The radiation will activate the significant substance preferentially fixed on cancerous cells and will cause the death of the tumoral cells while releasing from the toxic ridicalizing species which then will deteriorate vital cellular targets. Tissue distribution and elimination kinetics of the SIM01 were analysed in biological samples from mice tissues by spectrofluorometry and HPLC. Measurements were performed 4, 6, 12, 24 and 48h after an intraperitoneal injection for SIM01 doses of 2, 5 and 15mgkg(-1). Elimination seemed to concern essentially gallbladder, liver and stools, where maximum fluorescence reached, respectively, 20,000, 2800 and 15,000cps for 5mgkg(-1), 6h after injection. Among the tissues examined with HPLC, the highest SIM01 levels were found in stools, urine, liver, gallbladder and spleen. Liver, gallbladder, and stool homogenates from drug-treated animals contained an additional peak (16, 7min) detectable only after injection of at least 15mgkg(-1). Our HPLC determinations and in vivo fluorescence detection of SIM01 gave comparable kinetic profiles. These techniques should be considered as complementary rather than exclusive for kinetic profiles determination." @default.
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- W1977965705 date "2004-09-01" @default.
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- W1977965705 title "Tissue detection of diphenylchlorin sensitizer (SIM01) by fluorescence and high-performance liquid chromatography" @default.
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- W1977965705 doi "https://doi.org/10.1016/s1572-1000(04)00043-2" @default.
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