the concentration of luteinizing hormone releasing hormone ( lhrh ) ( pglu-his-trp-ser-tyr-gly-leu-arg-pro-gly-nh2 ) , which reaches the anterior pituitary via the hypothalamo-hypophyseal portal system , appears to be controlled in part by the rate of lhrh degradation within the hypothalamus and/or pituitary .
C0023610
lhrh
C0020663
hypothalamus