the induction of prolactin ( prl ) -gene expression by calcitriol ( 1,25-dihydroxyvitamin d3 , 1,25-dihydroxycholecalciferol ) in clonal rat pituitary tumour ( gh4c1 ) cells was selectively inhibited by cortisol [ ic50 ( concentration causing 50 % inhibition ) = 3.2-4.1 nm ] .
C0006674
calcitriol
C0012328
dihydroxycholecalciferol