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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1988-8-31
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pubmed:abstractText |
The ability of amiloride and its analogues to inhibit [3H]batrachotoxinin-A 20-alpha benzoate [( 3H]BTX-B) and [3H]tetracaine binding to rat synaptosomes and to a rat heart membrane preparation was tested. Their ability to inhibit 22Na influx was determined with rat synaptosomes. 5-N-substituted analogues were generally more potent in inhibiting [3H]BTX-B and [3H]tetracaine binding than compounds substituted on the guanidine group. However, the inhibition was not competitive. Amiloride and some of its analogues were as active or more active in inhibiting [3H]tetracaine binding than they were in inhibiting [3H]BTX-B binding. 22Na influx was inhibited with the same relative potencies as [3H]BTX-B binding and a good correlation was found between the two inhibitions. These results show an effect of amiloride and its analogues on the voltage-sensitive Na+ channels, which could partly explain the inotropic effects of these drugs.
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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/Amiloride,
http://linkedlifedata.com/resource/pubmed/chemical/Batrachotoxins,
http://linkedlifedata.com/resource/pubmed/chemical/Neurotoxins,
http://linkedlifedata.com/resource/pubmed/chemical/Protoveratrines,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium Radioisotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Tetracaine,
http://linkedlifedata.com/resource/pubmed/chemical/batrachotoxinin A 20-alpha-benzoate
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
27
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pubmed:volume |
149
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
97-105
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3396627-Amiloride,
pubmed-meshheading:3396627-Animals,
pubmed-meshheading:3396627-Batrachotoxins,
pubmed-meshheading:3396627-Binding, Competitive,
pubmed-meshheading:3396627-Myocardium,
pubmed-meshheading:3396627-Neurotoxins,
pubmed-meshheading:3396627-Protoveratrines,
pubmed-meshheading:3396627-Rats,
pubmed-meshheading:3396627-Sodium,
pubmed-meshheading:3396627-Sodium Radioisotopes,
pubmed-meshheading:3396627-Synaptosomes,
pubmed-meshheading:3396627-Tetracaine
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pubmed:year |
1988
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pubmed:articleTitle |
Effects of amiloride and its analogues on [3H]batrachotoxinin-A 20-alpha benzoate binding, [3H]tetracaine binding and 22Na influx.
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pubmed:affiliation |
Institut de Pharmacologie (UA 589 CNRS) Faculté de Médecine, Strasbourg, France.
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pubmed:publicationType |
Journal Article,
In Vitro
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