Ghrelin Ghrelin Ghrelin (pronounced ), the "hunger hormone", also known as lenomorelin (INN), is a peptide hormone produced by ghrelinergic cells in the gastrointestinal tract that functions as a neuropeptide in the central nervous system. Besides regulating appetite, ghrelin also plays a significant role in regulating the distribution and rate of use of energy. When the stomach is empty, ghrelin is secreted. When the stomach is stretched, secretion stops. It acts on hypothalamic brain cells both to increase hunger, and to increase gastric acid secretion and gastrointestinal motility to prepare the body for food intake. The receptor for ghrelin, the ghrelin/growth
Adrenocorticotropic hormone (medication) Adrenocorticotropic hormone (medication) Adrenocorticotropic hormone is used as a medication and as diagnostic agent in the ACTH stimulation test. The form that is purified from pig pituitary glands is known as corticotropin (INN, BAN) is a medication and naturally occurring polypeptide tropic hormone produced and secreted by the anterior pituitary gland. The form that is made synthetically is tetracosactide (INN), also known as tetracosactrin (BAN) and cosyntropin (USAN), and the acetate ester, tetracosactide acetate (JAN), also known as tetracosactrin acetate (BAN). It consists of the first 24 (of a total of 39) amino acids of ACTH and retains full function