In women, a single dose of the antiprogestin mifepristone (RU486) in the secretory phase rapidly renders the endometrium unreceptive and is followed by endometrial breakdown and menstruation within 72 h. This model provides a system to iden…
BACKGROUND: Mifepristone in low daily doses has contraceptive potential by inhibiting ovulation and menstruation. Because follicular development is maintained, the endometrium is exposed to estrogen for prolonged periods unopposed by proges…
Progesterone is essential to the establishment and maintenance of pregnancy. Compounds that inhibit the synthesis of progesterone, or antagonize progesterone action, have multiple effects including the induction of abortion, labor induction…
Several reports indicate that vascular endothelial growth factor (VEGF) expression is increased in endometrial glands and stroma during the menstrual phase in the human endometrium. Here we report that VEGF receptor type 2 (KDR), normally e…
Antigestogens are compounds which inhibit the synthesis of progesterone or antagonise its biological action. The progesterone antagonist mifepristone (RU 486) binds with high affinity to progesterone receptors throughout the body, blocking …
This study investigated the regulatory effect of progesterone on decidual prolactin (dPRL) production during early human pregnancy (6-7 weeks). Patients (n = 7) were treated with the antiprogestin-mifepristone (RU 486; 600 mg single oral do…
Tamoxifen (20 mg per day) was administered for at least 3 months to six premenopausal women with uterine fibromyomata. In all the women there was an increased variability in the length of the menstrual and ovarian cycle associated with a si…
Thirty-six women with histories of regular cycles undergoing elective laparoscopic sterilization volunteered to participate in a research program of endometrial biopsy, oocyte donation, and in vitro fertilization (IVF). One half of the volu…
What is the current state of clinical application of inhibition of gonadal activity with LHRH agonists or antagonists? It seems unlikely in the short term that antagonists will be widely applied due to the short-acting nature of the present…
Endogenous prostaglandin (PG) concentrations (6oxo PGF1 alpha, PGE, PGF2 alpha) have been measured by radioimmunoassay in the endometrium of women with objectively assessed menstrual blood loss (MBL). The concentration of PGE and "total" PG…
The effects of four medical treatments have been assessed on menstrual blood loss (MBL) and endometrial prostaglandin (PG) concentrations in 30 women with objectively confirmed menorrhagia. Patients were randomly treated with danazol, 200 m…
The interaction between the prostaglandin production of the human endometrium and myometrium has been further investigated using intact pieces of endometrium in homogenates of myometrium. There was an increase in the production of 6 oxo PGF…
In this study we have obtained endometrium and myometrium from women whose menstrual blood loss had been measured objectively. Samples of tissue were snap frozen in liquid nitrogen for the estimation of PG content and tissue was homogenized…
The endogenous concentrations of prostaglandins F2 alpha (PGF 2 alpha) and E (PGE) were measured during the luteal phase of the menstrual cycle in the endometrium from 14 women with unexplained menorrhagia (measured menstrual blood loss in …
Concentrations of prostaglandin F2 alpha (PGF2 alpha) and prostaglandin E (PGE) were measured in endometrium from 18 women with ectopic pregnancies. In the nine pregnancies not associated with vaginal bleeding or an intra-uterine contracept…
Spontaneous ovarian activity, as reflected by the urinary excretion of total estrogen and pregnanediol measured serially (thrice weekly) over a period of 3-4 months, was studied in nine young women (15-27 yr old) with a history of dysfuncti…
The dynamics of estrogen secretion and production were studied using isotope dilution techniques combined with direct sampling of ovarian venous blood and follicular fluid in 10 women with a clinical history of anovulatory dysfunctional ute…
Summary The occurrence of cystic glandular hyperplasia of the endometrium in adolescent girls has been reviewed. This condition has been diagnosed much less frequently in the South‐Eastern Region of Scotland than in previously reported seri…