Source:http://linkedlifedata.com/resource/pubmed/id/10592375
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2000-1-13
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pubmed:abstractText |
Isolated squid olfactory receptor neurons respond to dopamine and betaine with hyperpolarizing conductances. We used Ca(2+) imaging techniques to determine if changes in intracellular Ca(2+) were involved in transducing the hyperpolarizing odor responses. We found that dopamine activated release of Ca(2+) from intracellular stores while betaine did not change internal Ca(2+) concentrations. Application of 10 mM caffeine also released Ca(2+) from intracellular stores, suggesting the presence of ryanodine-like receptors. Depletion of intracellular stores with 100 microM thapsigargin revealed the presence of a Ca(2+) store depletion-activated Ca(2+) influx. The influx of Ca(2+) through the store-operated channel was reversibly blocked by 10 mM Cd(2+). Taken together, these data suggest a novel odor transduction system in squid olfactory receptor neurons involving Ca(2+) release from intracellular stores.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
1422-4933
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1999 S. Karger AG, Basel
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pubmed:issnType |
Print
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pubmed:volume |
8
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
329-37
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pubmed:dateRevised |
2011-9-22
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pubmed:meshHeading |
pubmed-meshheading:10592375-Animals,
pubmed-meshheading:10592375-Betaine,
pubmed-meshheading:10592375-Caffeine,
pubmed-meshheading:10592375-Calcium,
pubmed-meshheading:10592375-Calcium Signaling,
pubmed-meshheading:10592375-Cells, Cultured,
pubmed-meshheading:10592375-Decapodiformes,
pubmed-meshheading:10592375-Dopamine,
pubmed-meshheading:10592375-Intracellular Membranes,
pubmed-meshheading:10592375-Neurons, Afferent,
pubmed-meshheading:10592375-Olfactory Pathways,
pubmed-meshheading:10592375-Thapsigargin
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pubmed:articleTitle |
Calcium signalling in squid olfactory receptor neurons.
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pubmed:affiliation |
Department of Physiology, School of Medicine, University of Utah, Salt Lake City, UT 84108, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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