H Okada
No ORCID on file
· 17 papers in corpus
lab-animal
2010
To examine antiestrogenic effects of danazol through the receptor system and to clarify its direct effects on the endometrium in vivo, we applied danazol jelly directly into the rabbit uterine cavity and measured uterine estrogen, progester…
lab-animal
2001
Dienogest is a synthetic steroid that has been used as a progestogen in contraceptive pills and is currently being studied for its possible clinical use in the treatment of endometriosis. In this study, we investigated the direct effects of…
lab-animal
1996
The serum drug levels and pharmacological effects of leuprorelin acetate (leuprolide acetate) in female rats after subcutaneous (sc) injection of 3-month release injectable and biodegradable microspheres were investigated. After sc injectio…
lab-animal
1993
OBJECTIVE: To investigate steroidogenesis in eutopic and ectopic endometrial tissues in adenomyosis. STUDY DESIGN: Aromatase and estrone sulfatase activities were determined by anion-exchange resin column chromatography, thin-layer chromat…
review
1991
Leuprorelin (leuprolide, D-Leu6-(des-Gly10-NH2)-LH-RH ethylamide) acetate is a super-active agonist of luteinizing hormone-releasing hormone (LH-RH). We developed once-a-month injectable microcapsules of this agonist by our novel in-water d…
other
1991
lab-animal
1990
The development of human uterine estrogen-dependent tumors is considered to be closely related to estrogen biosynthesis. This study examined whether or not 14 alpha-hydroxy-4-androstene-3,6,17-trione (14 alpha-OHAT), a new 4-androstene-3, 1…
lab-animal
1989
Estrogen biosynthesis (aromatase activity) was investigated in human adenomyosis tissue and compared with that of the normal myometrium, endometrium, and endometrial cancer tissues. Homogenates were incubated with [1,2,6,7-3H]androstenedion…
lab-animal
1988
Leuprolide acetate is a highly potent analog of luteinizing hormone-releasing hormone. We have prepared 1-month release injectable microcapsules of leuprolide acetate using a biodegradable polymer, poly (dl-lactide-co-glycolide), to treat a…
other
1987
lab-animal
1986
To understand the mechanism of biological action of gestrinone (R2323), which has a therapeutic effect against endometriosis, the binding of gestrinone to numerous classes of intracellular steroid binding proteins was studied in the human u…
observational
1985
Abstract The serum prolactin (PRL) levels of 34 cases of endometriosis, 26 cases of adeno‐m‐osis, 30 cases of functional d‐smenorrhea, and 9 patients with m‐oma uteri were measured b‐ radioimmunoassa‐. The incidence of h‐perprolactinemia (>…
other
1985
Abstract Nine patients with pelvic endometriosis were treated with gestrinone in a dose of 2.5 mg twice weekl‐ for 6 to 7 months. All patients became anovulator‐ with sporadic episodes of painless uterine bleeding lasting various periods of…
lab-animal
1984
To understand the mechanism of action of danazol, the binding of danazol to multiple classes of intracellular steroid binding proteins was studied in the human uterine endometrium. Danazol bound to endometrial receptors for estrogen, proges…
observational
1983
Abstract The relation between serum hormone levels, endometrial cellular steroid receptor levels and endometrial dating was evaluated in the mid‐luteal phase of normoprolactinemic and hyperprolactinemic women for a better understanding of l…
nonrandomized-trial
1983
This study was designed to clarify the effects of danazol on levels of serum luteinizing hormone (LH), follicle-stimulating hormone (FSH), prolactin, progesterone (P), and 17 beta-estradiol and endometrial steroid receptors (for estrogen [E…
other
1979
Steroid receptors in endometriosis and adenomyosis were investigated to clarify their clinical significance. The receptor levels were determined by Scatchard plot analysis (4 degrees C, by dextran-coated charcoal). In the cytosols of both t…