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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1994-7-5
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pubmed:abstractText |
The effects of Ro 5-4864, a peripheral benzodiazepine receptor agonist (9 x 10(-6) M and 9 x 10(-5) M) and of PK 11195, a peripheral benzodiazepine receptor antagonist (3 x 10(-6) M and 3 x 10(-5) M), alone or together, on contraction parameters of human atrial muscle strips were studied. Atrial muscle strips were obtained from patients undergoing cardiac surgery. The strips were suspended in Krebs-Henseleit solution at 36.8 +/- 0.2 degrees C, connected to an isometric force transducer and then stimulated at 15 V above threshold and paced at 1.5 Hz. Ro 5-4864 at its higher concentration, alone or mixed with PK 11195 at both concentrations, depressed the contraction amplitude to 80% of the control value (P < 0.05). In conclusion, Ro 5-4864 had a small but significant depressant effect on the contraction amplitude of human atrial strips. Surprisingly, this effect was not reversed by the peripheral benzodiazepine receptor antagonist PK 11195.
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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/4'-chlorodiazepam,
http://linkedlifedata.com/resource/pubmed/chemical/Benzodiazepinones,
http://linkedlifedata.com/resource/pubmed/chemical/GABA-A Receptor Antagonists,
http://linkedlifedata.com/resource/pubmed/chemical/Isoquinolines,
http://linkedlifedata.com/resource/pubmed/chemical/PK 11195
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
3
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pubmed:volume |
253
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
231-6
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:8200417-Adult,
pubmed-meshheading:8200417-Aged,
pubmed-meshheading:8200417-Benzodiazepinones,
pubmed-meshheading:8200417-Depression, Chemical,
pubmed-meshheading:8200417-Electrophysiology,
pubmed-meshheading:8200417-Female,
pubmed-meshheading:8200417-GABA-A Receptor Antagonists,
pubmed-meshheading:8200417-Humans,
pubmed-meshheading:8200417-Isoquinolines,
pubmed-meshheading:8200417-Male,
pubmed-meshheading:8200417-Middle Aged,
pubmed-meshheading:8200417-Myocardial Contraction
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pubmed:year |
1994
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pubmed:articleTitle |
Ro 5-4864 has a negative inotropic effect on human atrial muscle strips that is not antagonized by PK 11195.
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pubmed:affiliation |
Pediatric Division, Soroka Medical Center, Beersheba, Israel.
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pubmed:publicationType |
Journal Article,
In Vitro
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