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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-7-7
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pubmed:abstractText |
The hypotensive and antimyocardial-stunning effects of a new 1,5-benzothiazepine antihypertensive agent, S-2150, were investigated in dogs. S-2150 (30 mg/kg, p.o.) decreased the blood pressure in conscious renal hypertensive dogs. Although the maximal hypotensive effect of S-2150 was observed at 5-9 h after administration, the effect of diltiazem was seen at 2.0 h. Arrhythmia was not observed as a hypotensive effects of S-2150 but was markedly induced by diltiazem. In anesthetized open-chest dogs, S-2150 (20 micrograms/kg/min, i.v.) caused by hypotensive effect similar to that of diltiazem but decreased myocardial work (double product) by much less than did diltiazem. S-2150 more promptly improved the local myocardial stunning caused by occlusion of the left anterior descending coronary artery and its reperfusion. This effect did not accompany the energy-sparing action in ischemic/reperfused myocardium, which was different from the case of diltiazem. In isolated dog mesenteric arteries, S-2150 relaxed KCl and phenylephrine contracture. These results suggest that S-2150 is a favorable hypotensive agent for hypertensive patients with ischemic heart disease. Blockage of both Ca2+ channels and alpha 1-adrenoceptors by S-2150 seems to lead to cardiovascular effects different from those of diltiazem.
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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 |
Feb
|
pubmed:issn |
0160-2446
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
29
|
pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
180-7
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:9057066-Adenosine Triphosphate,
pubmed-meshheading:9057066-Animals,
pubmed-meshheading:9057066-Antihypertensive Agents,
pubmed-meshheading:9057066-Coronary Disease,
pubmed-meshheading:9057066-Diltiazem,
pubmed-meshheading:9057066-Dogs,
pubmed-meshheading:9057066-Hemodynamics,
pubmed-meshheading:9057066-Hypertension, Renal,
pubmed-meshheading:9057066-Male,
pubmed-meshheading:9057066-Myocardial Stunning,
pubmed-meshheading:9057066-Vasodilation
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pubmed:year |
1997
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pubmed:articleTitle |
Pharmacological studies on a new antihypertensive agent, S-2150, a benzothiazepine derivative: 3. Hypotensive and antimyocardial-stunning effects in dogs.
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pubmed:affiliation |
Developmental Research Laboratories, Shionogi & Co., Ltd., Shiga, Japan.
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pubmed:publicationType |
Journal Article,
In Vitro
|