Norepinephrine (NE)
Ghrelin is an endogenous ligand of growth hormone secretagogue receptor in the pituitary and hypothalamus. It is released during periods of fasting to increase GH secretion.
It also acts on the liver to...
Ghrelin is produced by gastric neuroendocrine cells.
Overexpression of PRL (hyperprolactinemia) can lead to galactorrhea
Both PRL and GH have similiar affinities for the PRL receptor.
Prolactin is a 199 amino acid hormone with 16% homology to growth hormone.