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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1991-10-17
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pubmed:abstractText |
Xenopus oocytes injected with embryonic guinea-pig brain mRNA expressed functional P2Y purinoceptors. Extracellular ATP stimulated in a dose-dependent manner a delayed Ca(2+)-dependent Cl- current component. Analysis of the interactions of ATP with compounds that affect Ca2+ fluxes through the plasma membrane or Ca2+ release from internal stores indicates that ATP raises [Ca2+]i by a mechanism that involves activation of voltage-dependent Ca2+ channels, which leads to influx of extracellular Ca2+ into the cells, as well as release of Ca2+ from intracellular stores. Since this phenomenon was not found in control oocytes, it is suggested that brain mRNA encoded for a newly synthesized Ca(2+)-release process stimulated by purinoceptor activation. This mechanism could be largely involved in the short-term regulation of intracellular Ca2+ level involved in ATP neuromodulation functions.
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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/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium Channels,
http://linkedlifedata.com/resource/pubmed/chemical/Chlorides,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Purinergic
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0031-6768
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
418
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
447-52
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1653942-Adenosine Triphosphate,
pubmed-meshheading:1653942-Animals,
pubmed-meshheading:1653942-Brain,
pubmed-meshheading:1653942-Calcium,
pubmed-meshheading:1653942-Calcium Channels,
pubmed-meshheading:1653942-Chlorides,
pubmed-meshheading:1653942-Electrophysiology,
pubmed-meshheading:1653942-Guinea Pigs,
pubmed-meshheading:1653942-Injections,
pubmed-meshheading:1653942-Oocytes,
pubmed-meshheading:1653942-RNA, Messenger,
pubmed-meshheading:1653942-Receptors, Purinergic,
pubmed-meshheading:1653942-Xenopus
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pubmed:year |
1991
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pubmed:articleTitle |
Functional expression of P2Y purinoceptor in Xenopus oocyte injected with brain mRNA.
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pubmed:affiliation |
Laboratorie de Physiologie Cellulaire UFR de Biologie, Université des Sciences et Techniques de Lille-Flandres-Artois, Villeneuve d'Ascq, France.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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