Failure of ovulation after neonatal administration of 5α-dihydrotestosterone to female rats

S. Mizukami, K. Yamanouchi, Y. Arai, R. Yanai, H. Nagasawa

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    Wistar female rats were injected with testosterone (T) or 5α-dihydrotestosterone (5α-DHT) from the day of birth (=day 1) to day 5. Neonatal treatment with 1 mg of T resulted in anovulatory persistent estrous syndrome in 100% of the animals. In the females treated with 1 mg of 5α-DHT, 88.2% of the treated rats were sterile at 120 days of age. Treatment with 0.5 mg 5α-DHT was also effective in inducing anovulatory sterility, the incidence of sterility being 71.4%. In the females injected with 0.1 mg 5α-DHT, 42.9% of the animals were anovulatory at 120 days of age. These results suggest that non-aromatizable androgen, 5α-DHT, can permanently suppress the development of the female type of neuroendocrine regulation.

    元の言語English
    ホスト出版物のタイトルEndokrinologie
    ページ1-6
    ページ数6
    79
    エディション1
    出版物ステータスPublished - 1982

    ASJC Scopus subject areas

    • Endocrinology

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    Mizukami, S., Yamanouchi, K., Arai, Y., Yanai, R., & Nagasawa, H. (1982). Failure of ovulation after neonatal administration of 5α-dihydrotestosterone to female rats. : Endokrinologie (1 版, 巻 79, pp. 1-6)