[An experimental study of cisplatin and it's antidote, sodium thiosulfate, in ovarian pseudomyxoma implanted into nude mice abdominal cavity].

While Cisplatin was found to be effective in treating pseudomyxoma, its side effects, particularly on the kidneys, were very strong. Recently a "two channel therapy", in which it is used along with sodiumthiosulfate, has been reported to minimize the side effects. The authors used nude mice with pseudomyxoma implanted into the abdominal cavity in an experiment in which Cisplatin was introduced into the abdominal cavity and sodiumthiosulfate injected subcutaneously in a two channel procedure to determine the effect of sodiumthiosulfate on the action of Cisplatin on the pseudomyxoma and on the side effects of Cisplatin. The following results were obtained: The survival rate was improved when sodiumthiosulfate was administered with 40 mg/kg and 20 mg/kg of Cisplatin. Body weight loss was controlled when sodiumthiosulfate was administered with 20 mg/kg of Cisplatin. On the other hand, the histological effect of Cisplatin was also suppressed when sodiumthiosulfate was co-administered. In this study, we failed to observed any histological changes in the kidneys and liver attributable to Cisplatin.