14 Ergebnisse
The formation of blood-filled cavities in developing tumors of the anterior pituitary of estrogen-treated male Sprague-Dawley rats was studied in a serial sacrifice experiment. Two treated and 2 control rats were killed at each of 15 time points ranging from 7-272 days after sc implantation of an
Female brown trout were sacrificed every month or twice a month during the reproductive season. Plasma gonadotropin (GtH) and estradiol-17 beta (E2-17 beta) were measured using radioimmunological techniques, in relation with the state of gametogenesis. From ovulation to July egg's diameters remained
The shape of the space occupied by a model of the estrogenic steroid hormone estradiol-17 beta conforms closely to a helical cavity between neighboring base pairs in partially coiled B-DNA. The orientation of estradiol-17 beta when fitted into DNA allows stereochemically complementary hydrogen
Sex steroids are considered major regulators of sex change processes in fish. Estrogen depletion is shown to be crucial for female-male sex change initiation; however, its role in male-female sex change is largely unknown. In the present study, we examined the effects of estradiol-17 beta (E2)
The duration of S-sphase of the cell cycle in uterine epithelial and stroma tissues of ovariectomised rats, treated with two doses of estradiol-17 beta for 4 days, was estimated by the double labeling technique using H3 -and C14-thymidine. Estrogen treatment induced cyclical changes of S-phase
A copper intrauterine device (Cu-IUD) was inserted transabdominally into the uterine cavity of eight Japanese monkeys (Macaca fuscata fuscata) for 4 to 6 months, and effects on various organ functions were examined. Results showed no significant effects on the menstrual cycle length, serum levels of
This study was designed to ascertain the rate of transport and development of preimplantation embryo in the superovulated buffalo in order to determine the optimum time for their nonsurgical collection. Eighteen Murrah-type buffalo were superovulated with 600 mg NIH-FSH-P1. Luteolysis was induced by
Castrated-adrenalectomized aged female baboons were injected with 3H-estradiol-17 B (E2) and killed one hour later. Specimens from all regions of the larynx and oral cavity were taken and processed for autoradiography. A consistent and heavy uptake of 3H-E2 by the perichondrium and cartilage was
Danazol, an isoxazole derivative of 17 alpha-ethinyl-testosterone, has various effects on the female reproductive system. To examine its anti-estrogenic effects through the receptor system and clarify its direct effect on the endometrium in vivo, we applied danazol jelly into the rabbit uterine
The inhibitors of prostaglandin (PG) production (indomethacin, etc.) block ovulation. But little is known about how the inhibition of PG production effects cell function in the follicle. This study was done to clarify the morphological changes and steroidogenesis in the follicles treated with the
OBJECTIVE
To estimate the amount of endometrial epithelial cells in peritoneal fluid (PF) after uterine-tubal flushing (40 mL) throughout the menstrual cycle.
METHODS
We cultured the cell pellet of flush medium present in the peritoneal cavity.
METHODS
University Hospital Nijmegen, The
OBJECTIVE
To evaluate the predisposing factors and treatment outcomes of different stages of intrauterine adhesions.
METHODS
We examined the medical records of women with Asherman syndrome seen during the period of January 2000 to December 2007 at two McGill University teaching hospitals in
Formation of a fluid-filled antrum results from the actions of FSH and estrogen on preantral ovarian follicles in most mammalian species. To investigate the novel proposal that hormone-regulated cell-cell interactions mediate antrum formation, we isolated preantral follicles from infant (10- or
Paracoccidioidomycosis is a deep mycosis in Latin America. The causative agent is Paracoccidioides brasiliensis, a thermal dimorphic fungus. The incidence of the disease is much higher in men than in women. Although one explanation is the inhibitive effect of estradiol on fungal growth, its effect