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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1980-9-26
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pubmed:abstractText |
Burst-firing in neurosecretory cell R 15 of Aplysia californica is inhibited by the bath application of dopamine. Voltage-clamp analysis reveals a complex series of changes in the current-voltage relationship of R 15. Dopamine reduces the inward current in the region of negative slope conductance and tends to linearize the current-voltage curve. A variable increase in potassium conductance is frequently observed. The loss of inward current in the region of negative slope conductance is dose-dependent, highly reproducible and relatively resistant to desensitization, and for these reasons a valid dose-response relationship can be described. The dose-response curve is sigmoidal in shape and rises from a minimal effect near 50 microM to a maximal effect near 500 microM. This dose-response curve is useful as a standard of comparison in studies of agonists and antagonists. A protocol for the quantitative study of this system is described, and the constellation of changes in the current-voltage curve produced by dopamine is discussed.
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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:month |
Jul
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pubmed:issn |
0022-3565
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
214
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
112-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7391963-Action Potentials,
pubmed-meshheading:7391963-Animals,
pubmed-meshheading:7391963-Aplysia,
pubmed-meshheading:7391963-Cell Membrane,
pubmed-meshheading:7391963-Dopamine,
pubmed-meshheading:7391963-Dose-Response Relationship, Drug,
pubmed-meshheading:7391963-Imipramine,
pubmed-meshheading:7391963-Neurons,
pubmed-meshheading:7391963-Pargyline
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pubmed:year |
1980
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pubmed:articleTitle |
Dopamine inhibits burst-firing of neurosecretory cell R 15 in Aplysia californica: establishment of a dose-response relationship.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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