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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1260
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pubmed:dateCreated |
1987-7-16
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pubmed:abstractText |
Acetylcholine (ACh)-activated channel properties were examined on an aneural culture of chick embryo myotubes by using patch-clamp techniques. Changes in conductance, open time and closed time were induced by the selective activator of the calcium- and phospholipid-dependent C-kinase (PKc), 12-O-tetradecanoylphorbol-13-acetate (TPA). The action of TPA was mimicked by exogenous phospholipase C and was blocked by the PKc inhibitor, 1-(5-isoquinolinylsulphonyl)-2-methyl-piperazine. In addition to its gating action, ACh was shown to stimulate phosphoinositide turnover and to translocate PKc from the cytosol to the cell membrane. Both these ACh-induced effects were inhibited by curare and not substantially affected by atropine. Bath-applied ACh outside the patch-pipette in the cell-attached patch-clamp mode, had a strong effect on the ACh-activated channels in the patch membrane, in a way that resembled the action of TPA. These findings raise the possibility that ACh regulates its own nicotinic receptors through the C-kinase system.
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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/Acetylcholine,
http://linkedlifedata.com/resource/pubmed/chemical/Atropine,
http://linkedlifedata.com/resource/pubmed/chemical/Protein Kinase C,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Nicotinic,
http://linkedlifedata.com/resource/pubmed/chemical/Tetradecanoylphorbol Acetate
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0080-4649
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
22
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pubmed:volume |
230
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
355-65
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:2884674-Acetylcholine,
pubmed-meshheading:2884674-Animals,
pubmed-meshheading:2884674-Atropine,
pubmed-meshheading:2884674-Cell Membrane,
pubmed-meshheading:2884674-Chick Embryo,
pubmed-meshheading:2884674-Cytosol,
pubmed-meshheading:2884674-Muscles,
pubmed-meshheading:2884674-Protein Kinase C,
pubmed-meshheading:2884674-Receptors, Nicotinic,
pubmed-meshheading:2884674-Tetradecanoylphorbol Acetate
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pubmed:year |
1987
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pubmed:articleTitle |
Acetylcholine may regulate its own nicotinic receptor-channel through the C-kinase system.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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