title: Use of clomiphene and luteinizing hormone/follicle stimulating hormone-releasing hormone in investigation of ovulatory failure.
abstract: A luteinizing hormone/follicle-stimulating hormone-releasing hormone (LH/FSH-RH) test was performed in 70 women with amenorrhoea or anovulatory infertility, or both, and a clomiphene stimulation test was also performed in 24 of these patients. Most patients responded to LH/FSH-RH with significant increases in LH and FSH. In women with gonadal dysgenesis or premature ovarian failure exaggerated responses were observed after LH/FSH-RH and there was no change in high basal LH levels after clomiphene. Patients with absent or impaired responses to LH/FSH-RH failed to respond to clomiphene. All patients with anovulatory menstrual cycles responded to both LH/FSH-RH and clomiphene, while seven out of 13 amenorrhoeic patients with a normal LH/FSH-RH response showed an early LH rise during clomiphene treatment and six were unresponsive. These results suggest a difference between the two groups at hypothalamic level with consequent therapeutic implications.
mesh_terms: D000293:Adolescent; D000328:Adult; D000568:Amenorrhea / Q000097:blood / Q000175:diagnosis* / Q000652:urine; D000858:Anovulation / Q000175:diagnosis*; D002996:Clomiphene; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D007987:Gonadotropin-Releasing Hormone; D006801:Humans; D007031:Hypothalamus / Q000378:metabolism; D007986:Luteinizing Hormone / Q000097:blood; D008594:Menopause, Premature; D008598:Menstruation; D010060:Ovulation; D010902:Pituitary Gland / Q000378:metabolism; D011276:Pregnanediol / Q000652:urine; D013268:Stimulation, Chemical; D013997:Time Factors; D014424:Turner Syndrome / Q000175:diagnosis
chemical_list: D002996:Clomiphene; D007987:Gonadotropin-Releasing Hormone; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D011276:Pregnanediol