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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1998-1-29
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pubmed:abstractText |
Cultures of myenteric ganglia from adult guinea-pigs were used to study the influence of neuroactive substances on glial cells by monitoring changes in their morphology. The following substances had no effect on glial morphology: adenosine, ATP, carbachol, glutamate, bradykinin, isoprenaline, prostaglandin E2, sodium nitroprusside and lipopolysaccharide. The only substances found to affect glial morphology were phorbol esters, and in particular phorbol 12-myrisate 13-acetate (PMA), which acted at the nM range. Glial cells, which were normally polygonal, assumed a stellate shape within 30-60 min after the addition of PMA. Protein kinase C (PKC) inhibitors did not block this effect, and PKC activators did not mimic it. The effect of PMA was also not mediated by changes in the intracellular concentrations of either Ca2+, H+ or cyclic AMP. Dye coupling among glial cells was blocked by PMA. The phorbol ester-mediated effect on glial structure may have profound influence on neuronal organization and function.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
|
pubmed:issn |
0304-3940
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
19
|
pubmed:volume |
233
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
61-4
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:9350832-Animals,
pubmed-meshheading:9350832-Cells, Cultured,
pubmed-meshheading:9350832-Guinea Pigs,
pubmed-meshheading:9350832-Myenteric Plexus,
pubmed-meshheading:9350832-Neuroglia,
pubmed-meshheading:9350832-Phorbol Esters,
pubmed-meshheading:9350832-Protein Kinase C,
pubmed-meshheading:9350832-Tetradecanoylphorbol Acetate
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pubmed:year |
1997
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pubmed:articleTitle |
Phorbol esters alter the morphology of cultured guinea-pig myenteric glia via a protein kinase C-independent mechanism.
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pubmed:affiliation |
Laboratory of Experimental Surgery, Hebrew University-Hadassah Medical School, Jerusalem, Israel. hananim@cc.huji.ac.il
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|