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The discovery of ghrelin is a typical example of reverse pharmacology: first the synthetic analogues (i.e. peptidyl and non-peptidyl growth hormone secretagogues (GHS)); second the receptor; third the natural ligand for this orphan receptor, i.e. ghrelin. Ghrelin is providing new understanding about how the gastrointestinal tract and nutritional intake regulate appetite, food intake and energy expenditure...
The discovery of ghrelin is a typical example of reverse pharmacology: first the synthetic analogues (i.e. peptidyl and non-peptidyl growth hormone secretagogues (GHS)); second the receptor; third the natural ligand for this orphan receptor, i.e. ghrelin. Ghrelin is providing new understanding about how the gastrointestinal tract and nutritional intake regulate appetite, food intake and energy expenditure...
The binding affinity of somatostatin-14 (SRIF), various SRIF derivatives, and some peptides belonging to the growth hormone-releasing peptide (GHRP) family to specific receptors for SRIF and GHRP in the human pituitary gland has been measured. GHRP receptors have been identified using [125I]Tyr-Ala-hexarelin, a peptide that thas been demonstrated to be a potent growth hormone (GH) releaser in humans...
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