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
Doctor Hormone lured Doctor Hormone and Jane into a mysterious gorge where they descended into The Chaos and fell into a state of suspended animation. The character has not appeared since. Doctor Hormone was a scientific genius who developed powerful "hormones" which were capable of creating great changes in the human body, including restoring youth and transforming people into animals or bizarre human-animal hybrids. The Thinker endowed Doctor Hormone with powers that included superhuman strength, a stentorian voice, and super-breath. Presumably, this was temporary. Doctor Hormone Doctor Hormone is a fictional character created by Bob Bugg, who briefly appeared in comic books