specific binding sites for gnrh are present in myoma membranes , as 125i-buserelin binding was displaced with equal efficiency by the superagonists , buserelin and d-trp6-gnrh , and by the antagonist organon 30276 , but not by unrelated peptides such as thyrotropin releasing hormone and oxytocin .
C0006456
buserelin
C0023610
gnrh