[Is there a relation between parathormone and prolactin secretion in patients with acute and chronic kidney failure?]

In 14 healthy persons, 31 patients with acute and 13 with chronic renal failure the influence of alpha-bromocriptine on the PTH and prolactin level in the blood serum was investigated. In all subjects examined alpha-bromocriptine caused a decrease of the prolactin level. In acute and chronic renal failure simultaneously a decrease, on the other hand in healthy persons an increase of the PTH-concentration was observed. In all groups examined no correlation between the PTH and the prolactin level could be stated. In the light of the results obtained in this study the existence of a direct PTH-depending prolactin secretion seems to be questionable.

Influence of naloxone on prolactin secretion in patients with acute and chronic renal failure

The influence of the opiate antagonist naloxone on chlorpromazine induced prolactin secretion was examined in 12 patients with acute renal failure (ARF), 12 patients with chronic renal failure (CRF) and in 12 healthy subjects. In all examined groups naloxone showed a suppressive effect on chlorpromazine induced prolactin secretion, which was more accentuated in normals and patients with ARF then with CRF. The results of these investigations suggest that endogenous opiates may be of importance in the regulation of prolactin secretion both in normals and uremic patients.