Inhibition by somatostatin of LH-RH-induced LH release in normal menstruating women.
The present study was carried out in order to establish whether the concomitant treatment with somatostatin (SRIH) is capable of modifying gonadotrophin release in response to LH-RH administration in normal women during follicular, periovulatory, and luteal phases. SRIH was administered in a dose of 5.55 micrograms/min over 180 min and LH-RH (100 micrograms) was injected as a bolus at 90 min after the beginning of SRIH infusion. Within the dose used, SRIH significantly reduced LH response to LH-RH, whereas it did not alter FSH response to LH-RH. These results suggest that SRIH may play a part in the regulation of LH secretion in normal women.
D000328:Adult; D005260:Female; D005640:Follicle Stimulating Hormone / Q000378:metabolism; D005498:Follicular Phase; D007987:Gonadotropin-Releasing Hormone / Q000037:antagonists & inhibitors*; D006801:Humans; D008183:Luteal Phase; D007986:Luteinizing Hormone / Q000378:metabolism*; D008597:Menstrual Cycle; D010060:Ovulation; D013004:Somatostatin / Q000494:pharmacology*
D007987:Gonadotropin-Releasing Hormone; D013004:Somatostatin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone