basal prolactin secretion was stimulated by the addition of methylisobutylxanthine ( mix ) ( 0.3-1.0 mm ) and 8-bromo-cyclic amp ( 2 mm ) , but cholera toxin ( 3 micrograms/ml ) and prostaglandin e2 ( 0.1-1.0 microm ) , which also raised cellular cyclic amp levels , had no effect on prolactin release .
C0000661
8-bromo-cyclic amp
C0001455
cyclic amp