G. Greeley

Publications279
h-index44
Citations6,805
Highly Influential Citations152
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Ghrelin, a new gastrointestinal endocrine peptide that stimulates insulin secretion: enteric distribution, ontogeny, influence of endocrine, and dietary manipulations.
Ghrelin, an endogenous ligand for the GH secretagogue receptor was characterized recently from extracts of rat stomach. We describe the enteric distribution of ghrelin, ontogeny of stomach ghrelin… Expand
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Apelin, a new enteric peptide: localization in the gastrointestinal tract, ontogeny, and stimulation of gastric cell proliferation and of cholecystokinin secretion.
Apelin is a recently discovered peptide that is the endogenous ligand for the APJ receptor. The aim of this study was to characterize apelin expression (mRNA levels) in the rat gastrointestinal tract… Expand
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Characterization of a Human Pancreatic Carcinoid in Vitro: Morphology, Amine and Peptide Storage, and Secretion
The study of functioning human endocrine tumors has been hampered by a lack of suitable in vitro models. We have established the first permanent cell line of a human pancreatic carcinoid tumor (BON)… Expand
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Ghrelin—not just another stomach hormone
Growth hormone (GH) secretagogues (GHSs) are non-natural, synthetic substances that stimulate GH secretion via a G-protein-coupled receptor called the GHS-receptor (GHS-R). The natural ligand for the… Expand
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Regulation of the release of cholecystokinin by bile salts in dogs and humans.
The objective of these studies was to investigate the role of bile salts in the regulation of release of cholecystokinin in response to nutrients in dogs and humans. In dogs, the intraduodenal… Expand
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Minimal enteral nutrient requirements for intestinal growth in neonatal piglets: how much is enough?
BACKGROUND Parenterally nourished preterm infants commonly receive minimal enteral feedings, the aim being to enhance intestinal function. Whether this regimen increases intestinal growth has not… Expand
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Multiple Protein Kinase Pathways Are Involved in Gastrin-releasing Peptide Receptor-regulated Secretion*
Gastrin-releasing peptide (GRP) and its amphibian homolog, bombesin, are potent secretogogues in mammals. We determined the roles of intracellular free Ca2+([Ca2+] i ), protein kinase C (PKC), and… Expand
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Ontogeny of apelin and its receptor in the rodent gastrointestinal tract
Apelin is the endogenous ligand for the APJ receptor and both apelin and APJ are expressed in the gastrointestinal (GI) tract. The aim of this study was to define ontogeny of apelin and APJ in the… Expand
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Processing of chromogranin A in the parathyroid: generation of parastatin-related peptides
Chromogranin A (CgA) is a glycoprotein present in secretory granules of endocrine cells. In the parathyroid, it is costored and cosecreted with parathormone (PTH) in response to hypocalcemia. CgA is… Expand
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Inhibitory Action of Islet Amyloid Polypeptide and Calcitonin Gene‐related Peptide on Release of Insulin from the Isolated Perfused Rat Pancreas
Islet (or insulinoma) amyloid polypeptide (IAPP) is a 37-residue peptide recently purified from amyloid deposits in the pancreas of patients with type 2 diabetes and from amyloid deposits of a human… Expand
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