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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1994-7-26
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pubmed:abstractText |
An isolated clone PC12-37 of rat pheochromocytoma PC12 cells, which lacks ryanodine-sensitive Ca2+ channel, responds to depolarization and to agonist activation and triggers [3H]dopamine ([3H]DA) release. A caffeine-stimulated transmitter release, while present in the parental PC12 cell line, is completely abolished in PC12-37 cells. In contrast, caffeine-induced Ca2+ influx in PC12-37 cells is similar to that observed in PC12 cells, indicating that caffeine-induced CA2+ influx is neither mediated by caffeine-induced Ca2+ release nor contributes to the caffeine-induced secretion. These results show (a) a tight coupling between caffeine activation of a ryanodine-sensitive Ca2+ store and transmitter release, (b) no significant involvement of the ryanodine-sensitive Ca2+ channel in depolarization- and agonist-mediated transmitter release, and (c) exclude a major role for caffeine-mediated Ca2+ entry in the caffeine-activated secretion.
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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/Caffeine,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium Channels,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium Radioisotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Catecholamines,
http://linkedlifedata.com/resource/pubmed/chemical/Neurotransmitter Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Ryanodine
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0304-3940
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
3
|
pubmed:volume |
165
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
133-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7912413-Animals,
pubmed-meshheading:7912413-Caffeine,
pubmed-meshheading:7912413-Calcium,
pubmed-meshheading:7912413-Calcium Channels,
pubmed-meshheading:7912413-Calcium Radioisotopes,
pubmed-meshheading:7912413-Catecholamines,
pubmed-meshheading:7912413-Dopamine,
pubmed-meshheading:7912413-Neurotransmitter Agents,
pubmed-meshheading:7912413-PC12 Cells,
pubmed-meshheading:7912413-Rats,
pubmed-meshheading:7912413-Ryanodine
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pubmed:year |
1994
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pubmed:articleTitle |
Caffeine-induced transmitter release is mediated via ryanodine-sensitive channel.
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pubmed:affiliation |
Department of Biological Chemistry, Hebrew University of Jerusalem, Israel.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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