to determine whether hormone synthesis by the gh4c1 pituitary cell line could be regulated by specifically modulating the movement of ca2+ through voltage-sensitive channels , we have compared the effects of the dihydropyridine ca2+ channel agonist bay k8644 and the antagonist nimodipine on hormone production and ca2+ current in these cells .
C0012315
dihydropyridine
C0028094
nimodipine