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  • Title: [Studies in vivo and in vitro on the influence of 5-fluorouracil and n'-(2'-furanidyl)-5-fluorouracil on the walker carcinosarcoma 256 in the rat (author's transl)].
    Author: Mattern J, Volm M, Wayss K, Weber N.
    Journal: Arzneimittelforschung; 1980; 30(6):981-4. PubMed ID: 6774738.
    Abstract:
    We compare the effects of 5-fluorouracil and N'-(2'-furanidyl)-5-fluorouracil (Ftorafur) in vivo (tumor size) and in vitro ([6-3H]-deoxyuridine incorporation) on solid Walker carcinosarcoma of the rat. 5-Fluorouracil and Ftorafur have a dose-dependent effect on tumor size and on [6-3H]-deoxyuridine incorporation in vitro. The in vivo effects on tumor size are similar when the dose of Ftorafur calculated by its molecular weight is about 3 times higher than that of 5-fluorouracil. In vitro an about 650 times higher dose of Ftorafur is required to achieve a comparable reduction of [6-3H]-deoxyuridine incorporation in the tumor cells.
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