in an attempt to study the functional relation between pituitary cyclic amp and tsh secretion in response to thyrotropin releasing hormone ( trh ) or thyroid hormone administration , pituitary concentration of cyclic amp was measured by protein binding assay after in vivo and in vitro administration of test materials ( trh , thyroxine , triiodothyronine , actinomycin d , puromycin and cycloheximide singly or in combination ) .
C0032002
pituitary
C0040162
trh