3d image of ghrelin skeletal formula

ghrelin lenomorelin hormone enteroendocrine cells gastrointestinal tract stomach hunger meal gastric acid secretion anterior pituitary gland hypothalamic arcuate nucleus neuropeptide neurons appetite growth hormone secretagogue ghsr-1a memory sleep-wake cycle taste sensation reward behavior glucose metabolism ghs-r energy homeostasis cholinergic–dopaminergic link ghrelin receptor obesity cachexia weight vertical-sleeve gastrectomy bypass surgery rendering hormonal therapy replacement function action endocrine endocrinology level prohormone analogue metabolite biosynthesis intermediate