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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1991-1-14
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pubmed:abstractText |
GHRP-6 (His-D-Trp-Ala-Trp-D-Phe-LysNH2; SK&F 110679) is a hexapeptide that specifically releases growth hormone. Although derived from methionine enkephalin, 3H-SK&F 110679 binding profiles suggest that it retains little mu or delta opioid activity. In the present study, dynorphin A was a potent inhibitor of SK&F 110679 binding. However, detailed structure-activity studies using dynorphin-related compounds suggest that the interaction between SK&F 110679 and dynorphin was non-opioid in nature. The non-opioid peptide des-Tyr-dynorphin was virtually as potent an inhibitor of 3H-SK&F 110679 binding as the intact dynorphin peptide. Additionally, the non-peptide, kappa selective ligand U-50,488 was a very weak inhibitor of 3H-SK&F 110679 binding. Since dynorphin but not U-50,488 has been reported to release growth hormone, the present results suggest that a non-opioid dynorphin site participates in SK&F 110679's growth hormone releasing action.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Dynorphins,
http://linkedlifedata.com/resource/pubmed/chemical/Growth Hormone-Releasing Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Hormones,
http://linkedlifedata.com/resource/pubmed/chemical/Oligopeptides,
http://linkedlifedata.com/resource/pubmed/chemical/growth hormone releasing hexapeptide
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0143-4179
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
15
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
133-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1979153-Animals,
pubmed-meshheading:1979153-Binding, Competitive,
pubmed-meshheading:1979153-Dynorphins,
pubmed-meshheading:1979153-Growth Hormone-Releasing Hormone,
pubmed-meshheading:1979153-Hormones,
pubmed-meshheading:1979153-Hypothalamus,
pubmed-meshheading:1979153-Kinetics,
pubmed-meshheading:1979153-Male,
pubmed-meshheading:1979153-Oligopeptides,
pubmed-meshheading:1979153-Pituitary Gland, Anterior,
pubmed-meshheading:1979153-Protein Binding,
pubmed-meshheading:1979153-Rats,
pubmed-meshheading:1979153-Rats, Inbred Strains,
pubmed-meshheading:1979153-Structure-Activity Relationship
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pubmed:year |
1990
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pubmed:articleTitle |
A non-opioid pattern characterizes inhibition of growth hormone releasing peptide binding by dynorphin-related peptides.
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pubmed:affiliation |
R. W. Johnson Pharmaceutical Research Institute, Department of Biological Science, Springhouse, PA 19477-0776.
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pubmed:publicationType |
Journal Article
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