Dominant lethal mutations of topoisomerase II inhibitors etoposide and merbarone in male mice: a mechanistic study.

Abstract excerpt

Two topoisomerase II inhibitors, etoposide and merbarone, were tested for the induction of dominant lethal mutations in male mice. Etoposide was administered at a dosage of 30 or 60 mg/kg. Merbarone was administered at a dosage of 40 or 80 mg/kg. These males were mated at weekly intervals to virgin females for 6 weeks. In the present experiments, regardless of the agent, spermatids appeared to be the most...

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