The occurrence of DNA fragmentation in peripheral blood lymphocytes reflects a direct genotoxic effect of either alcohol or HBV and HCV and suggests that the same genotoxic effect may operate in the liver and contribute to hepatocarcinogenesis.

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The results of this study show that both ciprofloxacin, chosen for its use as possible radiosensitizing agent in bladder cancer patients, and hydrocortisone, chosen as an example of lypofilic endogenous compound, can be absorbed through the intestinal mucosa of a continent ileal reservoir, but to a different extent and with high interindividual variability.