{"type":"root","children":[{"type":"paragraph","children":[{"type":"text","value":"Prolactin is a peptide hormone primarily associated with lactation and breast development. It is synthesized and secreted by lactotrope cells in the adenohypophysis (anterior pituitary gland). It is also produced in other tissues including the breast and the decidua. Pituitary prolactin secretion is primarily regulated by the hypothalamus, specifically via neurosecretory dopamine neurons in the arcuate nucleus, which act as an inhibitory signal."}]}]}