A. Kumai

Effect of beta-endorphin on cAMP and progesterone accumulation in rat luteal cells.

T. Kato, R. Okamoto, A. Kumai, 1993, Endocrine journal.

Effect of / 3-Endor Accumulation in phin on cAMP and R at Luteal Cells Progesterone

Tomoyasu Kato, R. Okamoto, A. Kumai, 2022 .

Priming procedure and cell isolation for study on luteal cell response to peptide hormone in the rat.

R. Asakai, R. Okamoto, S. Sakamoto, 1986, Acta endocrinologica.

Antigonadotropic activity of hop extract.

R. Okamoto, A. Kumai, 1992, Acta endocrinologica.

Extraction of the hormonal substance from hop.

R. Okamoto, A. Kumai, 1984, Toxicology letters.