Prolactin is involved in the maturation of mammary glands and their secretion of milk in association with oxytocin, estrogen, progesterone, glucocorticoids, and others.
[citation needed] When prolactin cells are observed in vitro, they are responsible for firing spontaneous action potentials, causing Ca2+ to follow the action potential pathway and allows for the exocytotic pathway, prolactin gene transcription, and hormone synthesis to remain active throughout.
Prolactin is involved in the maturation of mammary glands and their secretion of milk in association with oxytocin, estrogen, progesterone, glucocorticoids, and others.
In men, prolactinoma could also cause erectile dysfunction, enlarged breast tissue, small muscles or a decrease in the amount of body hair.
In women, this could cause breast discharge, irregular menstrual cycles, painful intercourse, acne, or an increase in the amount of body hair.