Luteinizing hormone and its dilemma in ovulation induction
نویسندگان
چکیده
منابع مشابه
Luteinizing hormone response to gonadotrophin-releasing hormone in normal women undergoing ovulation induction with urinary or recombinant follicle stimulating hormone.
Oestradiol enhances pituitary sensitivity to gonadotrophin-releasing hormone (GnRH) in normal women, while in women undergoing ovulation induction the putative factor gonadotrophin surge attenuating factor (GnSAF) attenuates the response of luteinizing hormone (LH) to GnRH. To study the relationships between oestradiol and GnSAF during ovulation induction, 15 normally ovulating women were inves...
متن کاملUrinary Luteinizing Hormone Tests: Which Concentration Threshold Best Predicts Ovulation?
Objective To study the best possible luteinizing hormone (LH) threshold to predict ovulation within the 24, 48, and 72 h. Design Observational study. Setting Multicenter collaborative study. Patients A total of 107 women. Interventions Women collected daily first morning urine for hormonal assessment and underwent serial ovarian ultrasound. This is a secondary analysis of 283 cycles. ...
متن کاملInduction of ovulation with pulsatile luteinising hormone releasing hormone.
Ovulation was successfully induced with luteinising hormone releasing hormone in 28 women with hypothalamic amenorrhoea who had failed to respond to treatment with clomiphene. Luteinising hormone releasing hormone was administered in a pulsatile manner with miniaturised automatic infusion systems. The rate of ovarian follicular maturation, as monitored by serial pelvic ultrasonography, was simi...
متن کاملSynchronization of ovulation in cyclic gilts with porcine luteinizing hormone (pLH) and its effects on reproductive function.
The overall objective was to evaluate the use of porcine luteinizing hormone (pLH) for synchronization of ovulation in cyclic gilts and its effect on reproductive function. In an initial study, four littermate pairs of cyclic gilts were given altrenogest (15 mg/d for 14 d). Gilts received 500 microg cloprostenol (Day 15), 600 IU equine chorionic gonadotropin (eCG) (Day 16) and either 5mg pLH or...
متن کاملLuteinizing hormone activity in blood and urinary oestrogen excretion by the sow at oestrus and ovulation.
Luteinizing hormone (lh) activity in blood was assessed by the ovarian cholesterol depletion (ocd) method and oestrogens were estimated chemically in the urine of seven sows before and during oestrus. In three sows, peritoneal cannulation permitted the time of ovulation to be related to lh and oestrogen determinations. The findings suggest a marked elevation of blood lh activity coincident with...
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ژورنال
عنوان ژورنال: Journal of Human Reproductive Sciences
سال: 2011
ISSN: 0974-1208
DOI: 10.4103/0974-1208.82351