rdf:type |
|
lifeskim:mentions |
umls-concept:C0004461,
umls-concept:C0006675,
umls-concept:C0026973,
umls-concept:C0034693,
umls-concept:C0034721,
umls-concept:C0036387,
umls-concept:C0037940,
umls-concept:C0040704,
umls-concept:C0127400,
umls-concept:C0178719,
umls-concept:C0597357,
umls-concept:C0687129,
umls-concept:C1268228
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pubmed:issue |
1
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pubmed:dateCreated |
1997-5-1
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pubmed:abstractText |
Receptors for neuroligands in the paranodal Schwann cell region of a myelinated nerve fiber could have important functions. We have used confocal laser scanning microscopy in combination with Ca(2+)-sensitive fluorescent dyes to study the possible effects of purinergic agonists on the free intracellular calcium concentration ([Ca2+]i) in paranodes of isolated rat spinal roots. Application of ATP in concentrations of 100 and 300 microM resulted in a transient rise in [Ca2+]i in about 57% of the paranodal Schwann cell regions studied. UTP was equipotent to ATP whereas adenosine, beta,gamma-methylene ATP, and elevation of the extracellular K+ concentration by 10 mM had no effect on [Ca2+]i. These data indicate the presence of the P2Y2 (previously termed P2U) subtype of P2 receptors in the paranodal Schwann cell membrane of rat spinal root myelinated nerve fibers.
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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/Adenosine Triphosphate,
http://linkedlifedata.com/resource/pubmed/chemical/Benzofurans,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Fluorescent Dyes,
http://linkedlifedata.com/resource/pubmed/chemical/Imidazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Organic Chemicals,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Purinergic,
http://linkedlifedata.com/resource/pubmed/chemical/Uridine Triphosphate,
http://linkedlifedata.com/resource/pubmed/chemical/calcium green,
http://linkedlifedata.com/resource/pubmed/chemical/fura red
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0304-3940
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:day |
7
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pubmed:volume |
224
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
49-52
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9132688-Adenosine Triphosphate,
pubmed-meshheading:9132688-Animals,
pubmed-meshheading:9132688-Axons,
pubmed-meshheading:9132688-Benzofurans,
pubmed-meshheading:9132688-Calcium,
pubmed-meshheading:9132688-Fluorescent Dyes,
pubmed-meshheading:9132688-Imidazoles,
pubmed-meshheading:9132688-Intracellular Membranes,
pubmed-meshheading:9132688-Male,
pubmed-meshheading:9132688-Microscopy, Confocal,
pubmed-meshheading:9132688-Nerve Fibers, Myelinated,
pubmed-meshheading:9132688-Organic Chemicals,
pubmed-meshheading:9132688-Rats,
pubmed-meshheading:9132688-Rats, Wistar,
pubmed-meshheading:9132688-Receptors, Purinergic,
pubmed-meshheading:9132688-Schwann Cells,
pubmed-meshheading:9132688-Spinal Nerve Roots,
pubmed-meshheading:9132688-Uridine Triphosphate
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pubmed:year |
1997
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pubmed:articleTitle |
Intracellular calcium transients mediated by P2 receptors in the paranodal Schwann cell region of myelinated rat spinal root axons.
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pubmed:affiliation |
Department of Physiology, University of Munich, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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