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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1989-8-14
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pubmed:abstractText |
We investigated the molecular forms of endothelin (ET) related peptides in porcine spinal cord by high performance liquid chromatography coupled with radioimmunoassays using three antisera raised against ET-1 and C-terminal fragments of ET-1 and big ET-1. ET-1 and its oxidized form were isolated as major immunoreactive peptides and sequenced. Furthermore, immunoreactivities like ET-3 and big ET-1(22-39) (contents: less than 8% and less than 1% of ET-1, respectively) were detected based on their chromatographic retention times and characteristics of immunoreactivity to the antisera. Big ET-1 was only scarcely detected. Immunohistochemical study showed the presence of ET-1-like immunoreactivity in motoneurons, dorsal horn neurons and dot- and fiber-like structures in the dorsal horn of lumbar spinal cord. These results indicate that ET-1 is present not only in endothelial cells but also in spinal cord, and that big ET-1 is converted into ET-1 in spinal cord by specific processing between Trp21-Val22. The data also indicate that ET-1 may act as a neuropeptide in the central nervous system.
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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 |
Jul
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
14
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pubmed:volume |
162
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
340-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2665739-Amino Acid Sequence,
pubmed-meshheading:2665739-Animals,
pubmed-meshheading:2665739-Chromatography, High Pressure Liquid,
pubmed-meshheading:2665739-Endothelins,
pubmed-meshheading:2665739-Endothelium, Vascular,
pubmed-meshheading:2665739-Male,
pubmed-meshheading:2665739-Molecular Sequence Data,
pubmed-meshheading:2665739-Motor Neurons,
pubmed-meshheading:2665739-Peptide Fragments,
pubmed-meshheading:2665739-Peptides,
pubmed-meshheading:2665739-Radioimmunoassay,
pubmed-meshheading:2665739-Spinal Cord,
pubmed-meshheading:2665739-Swine,
pubmed-meshheading:2665739-Swine, Miniature,
pubmed-meshheading:2665739-Vasoconstrictor Agents
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pubmed:year |
1989
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pubmed:articleTitle |
Presence of endothelin-1 in porcine spinal cord: isolation and sequence determination.
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pubmed:affiliation |
Department of Biochemistry, University of Tsukuba, Ibaraki, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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