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Induction of dominant lethal mutations in male mice by fosfestrol

Abstract

Using the dominant lethal assay, the ability of fosfestrol, a diethylstilboestrol derivate, to induce mutations in male mice was tested and confirmed. Up to 300 mg/kg of fosfestrol the induction of mutations occurs exclusively in spermatozoa. A dose of 600 mg/kg of fosfestrol induces dominant lethal mutations up to 10 days posttreatment. The majority of induced dominant lethal mutations in all dose groups are expressed as loss after implantation.

Zusammenfassung

Im dominanten Letaltest wurde die Fähigkeit von Fosfestrol, einem Diäthylstilböstrolderivat, in männlichen Mäusen Mutationen zu induzieren, geprüft und bestätigt. Bis zu einer Dosis von 300 mg/kg induziert Fosfestrol ausschließlich Mutationen in Spermatozoen. Eine Dosis von 600 mg/kg Fosfestrol induziert dominante Letalmutationen bis zum 10. Tag nach der Behandlung. Die Mehrheit der induzierten dominanten Letalmutationen manifestiert sich nach der Implantation.

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Ehling, U.H. Induction of dominant lethal mutations in male mice by fosfestrol. Arch. Toxicol. 42, 171–177 (1978). https://doi.org/10.1007/BF00353708

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  • DOI: https://doi.org/10.1007/BF00353708

Key words

  • Dominant lethal mutations
  • Differential spermatogenic response
  • Dose-response-relationship
  • Fosfestrol
  • Mouse