Hiroshi Hosoda

TL;DR: The occurrence of ghrelin in both rat and human indicates that GH release from the pituitary may be regulated not only by hypothalamic GHRH, but also by ghrelIn, a peptide specifically releases GH both in vivo and in vitro.

TL;DR: Ghrelin probably functions not only in the control of GH secretion, but also in the regulation of diverse processes of the digestive system, and its findings provide clues to additional physiological functions of this novel gastrointestinal hormone.

TL;DR: It is concluded that the stomach is a major source of circulating ghrelin and that plasma gh Relin-like immunoreactivity levels reflect acute and chronic feeding states in humans.

TL;DR: It is demonstrated that nutritional state is a determinant of plasma ghrelin in humans andGhrelin secretion is up-regulated under conditions of negative energy balance and down-regulated in the setting of positive energy balance, suggesting the involvement of gh Relin in the regulation of feeding behavior and energy homeostasis.

TL;DR: While gh Relin activates growth-hormone secretagogue (GHS) receptor-expressing cells, the nonmodified des-n-octanyl form of ghrelin, designated as des-acyl ghrel in, does not.