the effect of an iv bolus injection of 1 microgram/kg body weight of vasoactive intestinal polypeptide ( vip ) on plasma prolactin ( prl ) levels was tested in 13 normal volunteers and 15 patients with hyperprolactinaemia of various aetiology : 9 with prl-producing pituitary tumours ( 6 prolactinoma , 3 mixed pituitary adenoma , secreting prl and growth hormone ( gh ) ) , 6 with hyperprolactinaemia secondary to a hypothalamic lesion ( 4 craniopharyngioma , 1 hypothalamic germinoma , 1 meningoencephalitis ) .
C1327616
secreting
C0033371
prl