Toshiaki Nakai
University of Tokyo
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Featured researches published by Toshiaki Nakai.
Nihon Naibunpi Gakkai zasshi | 1976
Toshiaki Nakai; Hiroshi Minaguchi; Hiroyuki Mori; Tomonori Kigawa; Shoichi Sakamato
Changes of serum concentrations of LH were measured in fetal and neonatal rats following castration. Intact fetal and neonatal male rats showed low levels of serum LH concentration. Though serum LH levels of male rats casterated on the 20th day of gestation did not significantly increase by the 22nd day of fetal age, serum levels of neonatal male rats increased 2-to 3-fold 3 days following castration at all ages studied. The increase was greater in 4-day-old male rats than in 1-day-old males. The increase of serum LH after castration was also found in 4-day-old male rats castrated on the 20th day of gestation. In contrast, serum levels of 1-day-old neonatal female rats did not increase 3-days after castration. These observations suggest sex differences in maturation of the gonadal-hypophyseal feedback mechanism.
Endocrinologia Japonica | 1971
Toshiaki Nakai; Tomonori Kigawa; Shoichi Sakamoto
Endocrinologia Japonica | 1972
Toshiaki Nakai; Yasunobu Eguchi; Shoichi Sakamoto; Tomonori Kigawa
Endocrinologia Japonica | 1972
Toshiaki Nakai; Shoichi Sakamoto; Tomonori Kigawa; Akiyo Shigematsu
Acta Obstetricia et Gynecologica Scandinavica | 1977
Shoichi Sakamoto; Tomonori Kigawa; Masahiko Mizuno; Hiroshi Minaguchi; Kazuo Satoh; Toshiharu Jimbo; Toshiaki Nakai; Yoshinori Kuwabara
Endocrinologia Japonica | 1972
Toshiaki Nakai; Shoichi Sakamoto; Tomonori Kigawa
Endocrinologia Japonica | 1969
Toshiaki Nakai; Taku Watanabe; Tomonori Kigawa; Katsuya Ajika; Yosuke Murasawa; Takuro Kobayashi; T. Kobayashi
Endocrinologia Japonica | 1970
Toshiaki Nakai; Katsuya Ajika; Yosuke Murasawa; Tomonori Kigawa; Tsutomu Yaginuma; Takuro Kobayashi; T. Kobayashi
Endocrinologia Japonica | 1969
Tsutomu Yaginuma; Taku Watanabe; Tomonori Kigawa; Toshiaki Nakai; Takuro Kobayashi; T. Kobayashi
Radioisotopes | 1976
Toshiaki Nakai; Akiyo Shigematsu