Introduction The addition of antagonists is mainly based on estrogen level and follicle size, while LH has not received sufficient attention.In this study, Level the antagonist administration day was used as main research objective to explore its relationship with laboratory indicators pregnancy outcomes. Methods Analysis We enrolled 854 patients normal ovarian function undergoing in-vitro fert...

It is known that the early environment affects the mental development of rodent and human offspring. However, it is not known specifically whether a postpartum depressive state influences the depressive state in offspring. Using learned helplessness (LH) in rats as an animal model of depression, we examined the influence of maternal postpartum LH on responses to the LH test of offspring. Dam ra...

To investigate a mode and a site of action of inhibin on FSH and LH secretion, in vivo and in vitro effects of porcine follicular fluid (PFF) on FSH and LH secretion were studied in male rats. PFF administered i.v. suppressed basal FSH levels for 1-8 hr, but did not alter LH levels. On the contrary, PFF given either 1 or 6 hr in advance, suppressed LH-RH stimulated LH responses as well as LH-RH...

OBJECTIVE The aim of the present study was to define the role of luteinizing hormone receptor (LH-R) expression in endometrial cancer (EC), using preclinical mouse models, to further transfer these data to the clinical setting. MATERIALS AND METHODS The role of LH-R over-expression was studied using EC cells (Hec1A, e.g., cells with low endogenous LH-R expression) transfected with the LH-R (H...

The hypothalamic LH-RH content and the concentrations of pituitary and plasma LH were measured at various ages in female rats treated daily with 10 micrograms testosterone propionate or 10 micrograms oestradiol-17beta from birth to Day 15. Persistent vaginal oestrus was induced in all the treated rats. Both hormones significantly reduced the hypothalamic LH-RH content and pituitary and plasma L...

Changes in serum LH, FSH and prolactin were measured by radioimmunoassay following injection of synthetic LH-RH into the anterior pituitary and median eminence of rats. The time course of serum levels of LH and FSH after injection of synthetic LH-RH into the pituitary showed a peak at 15 min. The synthetic LH-RH had a more marked releasing effect on LH than on FSH. After injection of 20 ng into...

An SDDS contains data records. Every record is identified by a primary key or by several keys. Records are stored in buckets at server nodes called (SDDS) servers. They are manipulated from client nodes called (SDDS) clients. The key value(s) determines the address of the bucket where the record should be. An SDDS file starts at one storage site. Inserts scale the file incrementally through spl...

The role of follicle stimulating hormone (FSH) in assisted repro­ ductive technology is well understood, though there is still no published consensus on the need for exogenous luteinizing hormone (LH) in controlled ovarian stimulation. There is a dilemma regarding the usefulness of LH supplementation in controlled ovarian stimulation despite growing understanding of the LH and FSH interrelation...

Testosterone (T) exerts negative feedback on the hypothalamo-pituitary (GnRH-LH) unit, but the relative roles of the CNS and pituitary are not established. We postulated that relatively greater LH responses to flutamide (brain-permeant antiandrogen) than bicalutamide (brain-impermeant antiandrogen) should reflect greater feedback via CNS than pituitary/peripheral androgen receptor-dependent pat...

SUMMARY Luteinizing hormone (LH) is a pituitary heterodimeric glycoprotein essential in male and female reproduction. Its functional poly-morphic variant (V-LH) is determined by two missense mutations (rs1800447, A/G, Trp8Arg; rs34349826, A/G, Ile15Thr) in the LH b-subunit encoding gene (LHB; 19q13.3; 1111 bp; 3 exons). Among women, V-LH has been associated with higher circulating LH and reduce...