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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-2
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pubmed:dateCreated |
1995-2-8
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pubmed:abstractText |
The relative importance of extracellular Ca2+ influx and intracellular Ca2+ release for the vasoconstrictor response to Sgd 101/75 (4(2-imidazoline-amino)-2-methyl-indazol-chlorhydrate), an alpha 1-adrenoceptor agonist, was examined in perfused rabbit ear arteries. Sdg 101/75 induced a phasic and a tonic vasoconstrictor response in a concentration-dependent manner. It is a full agonist on the tonic response but a partial agonist on the phasic response. Nifedipine preferentially inhibited the tonic but not the phasic response to Sgd 101/75. Therefore, Sgd 101/75 appears to require both the intracellular Ca2+ release and extracellular Ca2+ influx for its phasic and tonic responses in rabbit ear arteries, respectively.
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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/Adrenergic alpha-Agonists,
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Clonidine,
http://linkedlifedata.com/resource/pubmed/chemical/Nifedipine,
http://linkedlifedata.com/resource/pubmed/chemical/indanidine
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pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
262
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
185-8
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:7813572-Adrenergic alpha-Agonists,
pubmed-meshheading:7813572-Animals,
pubmed-meshheading:7813572-Arteries,
pubmed-meshheading:7813572-Calcium,
pubmed-meshheading:7813572-Clonidine,
pubmed-meshheading:7813572-Ear,
pubmed-meshheading:7813572-Muscle, Smooth, Vascular,
pubmed-meshheading:7813572-Muscle Contraction,
pubmed-meshheading:7813572-Nifedipine,
pubmed-meshheading:7813572-Rabbits,
pubmed-meshheading:7813572-Vasoconstriction
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pubmed:year |
1994
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pubmed:articleTitle |
Effects of nifedipine on phasic and tonic vasoconstrictor responses to Sgd 101/75 in the isolated perfused rabbit ear artery.
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pubmed:affiliation |
DuPont Merck Pharmaceutical Company, Wilmington, DE 19880-0400.
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pubmed:publicationType |
Journal Article
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