Source:http://linkedlifedata.com/resource/pubmed/id/15788704
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2005-3-24
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pubmed:abstractText |
Small synthetic molecules called growth hormone secretagogues (GHSs) stimulate the release of growth hormone (GH) from the pituitary. They act through the GHS-R, a G protein-coupled receptor whose ligand has only been discovered recently. Using a reverse pharmacology paradigm with a stable cell line expressing GHS-R, we purified an endogenous ligand for GHS-R from rat stomach and named it "ghrelin," after a word root ("ghre") in Proto-Indo-European languages meaning "grow." Ghrelin is a peptide hormone in which the third amino acid, usually a serine but in some species a threonine, is modified by a fatty acid; this modification is essential for ghrelin's activity. The discovery of ghrelin indicates that the release of GH from the pituitary might be regulated not only by hypothalamic GH-releasing hormone, but also by ghrelin derived from the stomach. In addition, ghrelin stimulates appetite by acting on the hypothalamic arcuate nucleus, a region known to control food intake. Ghrelin is orexigenic; it is secreted from the stomach and circulates in the bloodstream under fasting conditions, indicating that it transmits a hunger signal from the periphery to the central nervous system. Taking into account all these activities, ghrelin plays important roles for maintaining GH release and energy homeostasis in vertebrates.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0031-9333
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
85
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
495-522
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:15788704-Amino Acid Sequence,
pubmed-meshheading:15788704-Animals,
pubmed-meshheading:15788704-Ghrelin,
pubmed-meshheading:15788704-Humans,
pubmed-meshheading:15788704-Molecular Sequence Data,
pubmed-meshheading:15788704-Peptide Hormones,
pubmed-meshheading:15788704-Structure-Activity Relationship,
pubmed-meshheading:15788704-Tissue Distribution
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pubmed:year |
2005
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pubmed:articleTitle |
Ghrelin: structure and function.
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pubmed:affiliation |
Molecular Genetics, Institute of Life Science, Kurume University, Hyakunenkouen 1-1, Kurume, Fukuoka 839-0864, Japan. mkojima@lsi.kurume-u.ac.jp
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pubmed:publicationType |
Journal Article,
Review,
Research Support, Non-U.S. Gov't
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