to determine whether human pituitary is characterized by a circadian periodicity in response to repetitive injection of hypothalamic hormones , 8 healthy subjects were challenged iv with a triple stimulation with 50 micrograms of lrh and 100 micrograms of trh in a single bolus at 0 , 90 and 180 min , receiving the first pulse of hypothalamic hormones either at 02.00 h ( 02.00 h test ) or at 09.00 h ( 09.00 h test ) .
C0020663
hypothalamic
C0020656
hypothalamic hormones