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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1997-6-24
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pubmed:abstractText |
Mammalian hearts possess an atypical beta-adrenoceptor (non-beta 1, non-beta 2, non-beta 3) through which (-)-4-(3-t-butylamino-2 -hydroxypropoxy)benzimidazol-2-one ((-)-CGP 12177) causes cardiostimulant effects. Here we showed that (-)-CGP 12177 increased the activity of adenosine 3':5'-cyclic monophosphate (cyclic AMP)-dependent protein kinase in the presence of 200 nM (-)-propranolol in rat atria at a concentration (10 microM) that elicits maximum positive chronotropic and inotropic effects. The phosphodiesterase inhibitor 3-isobutyl-1-methylxanthine (IBMX) potentiated the positive chronotropic and inotropic effects of (-)-CGP 12177. We suggest that the atypical beta-adrenoceptor is coupled positively to the Gs protein-adenylyl cyclase system.
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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/1-Methyl-3-isobutylxanthine,
http://linkedlifedata.com/resource/pubmed/chemical/CGP 12177,
http://linkedlifedata.com/resource/pubmed/chemical/Cyclic AMP-Dependent Protein Kinases,
http://linkedlifedata.com/resource/pubmed/chemical/Propanolamines,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Adrenergic, beta
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0007-1188
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
120
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1187-9
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pubmed:dateRevised |
2008-11-20
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pubmed:meshHeading |
pubmed-meshheading:9105691-1-Methyl-3-isobutylxanthine,
pubmed-meshheading:9105691-Animals,
pubmed-meshheading:9105691-Cyclic AMP-Dependent Protein Kinases,
pubmed-meshheading:9105691-Enzyme Activation,
pubmed-meshheading:9105691-Heart Atria,
pubmed-meshheading:9105691-Propanolamines,
pubmed-meshheading:9105691-Rats,
pubmed-meshheading:9105691-Rats, Wistar,
pubmed-meshheading:9105691-Receptors, Adrenergic, beta
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pubmed:year |
1997
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pubmed:articleTitle |
Stimulation of cyclic AMP-dependent protein kinase in rat atria by (-)-CGP 12177 through an atypical beta-adrenoceptor.
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pubmed:affiliation |
Babraham Institute, Human Pharmacology Laboratory, Cambridge.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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