BACKGROUND Unovulation is the most common cause of infertility. The first line oral treatment has been clomiphene citrate. Another anti-estrogen used for ovulation induction is tamoxifen. Many unovulatory infertile women are resistance to anti-estrogens and need another treatment. Alternative treatments are aromatas inhibitors. OBJECTIVE This study was designed to compare the effectiveness of...

BACKGROUND Both recombinant FSH (r-FSH) and highly-purified, urinary FSH (HP-uFSH) are frequently used in ovulation induction associated with timed sexual intercourse. Their effectiveness is reported to be similar, and therefore the costs of treatment represent a major issue to be considered. Although several studies about costs in IVF have been published, data obtained in low-technology infert...

BACKGROUND Muscarinic receptors (mAChRs) of the preoptic and anterior hypothalamus areas (POA-AHA) regulate ovulation in an asymmetric manner during the estrous cycle. The aims of the present study were to analyze the effects of a temporal blockade of mAChRs on either side of the POA-AHA performed in diestrus-2 rats on ovulation, the levels of estradiol, follicle stimulating hormone (FSH) and l...

The article presents the results of analysis pregnancy rates mares depending on duration intervals from cloprostenol preparation injection to ovulation. It was found that with a decrease in interval (≤7 days), rate decreases by 30% (p≤0.05). To determine optimal time for use, an ovulation performed, day sexual cycle and largest follicle diameter. average before groups, (5, 6-7, 8-10, 11-15 have...

STUDY QUESTION Do endometriotic ovarian cysts influence the rate of spontaneous ovulation? SUMMARY ANSWER Endometriotic cysts, no matter what their volume, do not influence the rate of spontaneous ovulation in the affected ovary. WHAT IS KNOWN ALREADY Endometriotic ovarian cysts may negatively affect spontaneous ovulation in the affected ovary. STUDY DESIGN, SIZE, DURATION This was a pros...