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Journal ArticleDOI

A Receptor in Pituitary and Hypothalamus That Functions in Growth Hormone Release

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TLDR
A heterotrimeric GTP-binding protein (G protein)-coupled receptor (GPC-R) of the pituitary and arcuate ventro-medial and infundibular hypothalamus of swine and humans was cloned and was shown to be the target of the GHSs.
Abstract
Small synthetic molecules termed growth hormone secretagogues (GHSs) act on the pituitary gland and the hypothalamus to stimulate and amplify pulsatile growth hormone (GH) release. A heterotrimeric GTP-binding protein (G protein)-coupled receptor (GPC-R) of the pituitary and arcuate ventro-medial and infundibular hypothalamus of swine and humans was cloned and was shown to be the target of the GHSs. On the basis of its pharmacological and molecular characterization, this GPC-R defines a neuroendocrine pathway for the control of pulsatile GH release and supports the notion that the GHSs mimic an undiscovered hormone.

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Journal ArticleDOI

Pharmacodynamic hormonal effects of anamorelin, a novel oral ghrelin mimetic and growth hormone secretagogue in healthy volunteers.

TL;DR: Anamorelin increases GH, IGF-1, IGFBP-3 and body weight with good tolerability and selectivity, without affecting other anterior pituitary axes or fasting glucose levels.
Journal ArticleDOI

Neuronal circuits involving ghrelin in the hypothalamus-mediated regulation of feeding

TL;DR: Ghrelin, an n-octanoylated 28-amino acid brain-gut peptide, was first isolated from extracts of porcine stomach and was used to stimulate feeding and growth hormone secretion as mentioned in this paper.
Journal ArticleDOI

Effects of Hormones on Sleep

TL;DR: Administration of hormones to humans and animals results in specific effects on the sleep electroencephalogram (EEG) and nocturnal hormone secretion, which can be explained by γ-aminobutyric acidA receptor modulation.
Journal ArticleDOI

Molecular cloning and gene expression of growth hormone-releasing peptide receptor in rat tissues.

TL;DR: A fragment of the rat GH-releasing peptide (GHRP) receptor homologue was cloned and the tissue distribution of GHRP receptor mRNA in rats revealed that G HRP receptor mRNAs were localized predominantly in the arcuate nucleus and ventromedial hypothalamus.
References
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Journal ArticleDOI

Effects of Human Growth Hormone in Men over 60 Years Old

TL;DR: Diminished secretion of growth hormone is responsible in part for the decrease of lean body mass, the expansion of adipose-tissue mass, and the thinning of the skin that occur in old age.
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On the in vitro and in vivo activity of a new synthetic hexapeptide that acts on the pituitary to specifically release growth hormone

TL;DR: [His1,Lys6] GHRP may be a valuable peptide for investigating the function of the pituitary somatotrophs and has the potential for increasing BW gain of a variety of normal animals by inducing GH release via a direct pituitsary site of action.
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A versatile in vivo and in vitro eukaryotic expression vector for protein engineering

TL;DR: The pSG5 vector as mentioned in this paper was constructed by combining the eukaryotic expression vector, pKCR2, and the high copy plasmid vector Bluescribe Ml3+ (Stratagene).
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Expression cloning of a human B1 bradykinin receptor.

TL;DR: The availability of both the cloned human B1 and B2 bradykinin receptors should allow the elucidation of the relative contributions of these two receptor subtypes in acute and chronic inflammatory processes.
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A nonpeptidyl growth hormone secretagogue

TL;DR: The mechanism of action of L-692,429 and studies with peptidyl and nonpeptidyl antagonists suggest that this molecule is a mimic of the growth hormone-releasing hexapeptide His-D-Trp-Ala-Tr phe-Phe-Lys-NH2 (GHRP-6).
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