Source:http://linkedlifedata.com/resource/pubmed/id/12409149
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2002-10-31
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pubmed:abstractText |
The aim of this study was to develop a new model of vasopressin-induced chronic myocardial damage based on sustained ST-segment depression in electrocardiogram (ECG) with progression of myocardial fibrosis in rats. Furthermore, using this model, we examined the prophylactic potential of fasudil, a Rho-kinase inhibitor, against myocardial damage induced by vasopressin. In 10-week old male Donryu rats, intravenous administration of arginine vasopressin (0.5 iu/kg) induced significant ST-segment depression. Two days and one week after the administration of vasopressin, ST-segment depression was -0.19 +/- 0.02 and -0.14 +/- 0.02 mV, respectively. Fasudil (10 and 30 mg/kg, p.o.) significantly attenuated the ST-segment depression induced by vasopressin. One week after the administration of vasopressin, the percent area of myocardial fibrosis in control animals (0.42 +/- 0.11%, p < 0.01) was significantly greater than that in normal animals (0.05 +/- 0.01%). Fasudil (10 and 30 mg/kg) significantly prevented the development of the fibrosis. We present a new model of chronic myocardial damage based on sustained ST-segment depression with progression of myocardial fibrosis in rats, and suggest that this model may be useful to investigate the treatment of chronic angina. Inhibition of Rho-kinase is efficacious in preventing the ECG change and development of fibrosis induced by vasopressin in this model.
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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-(5-Isoquinolinesulfonyl)-2-Methylp...,
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Intracellular Signaling Peptides...,
http://linkedlifedata.com/resource/pubmed/chemical/Protein-Serine-Threonine Kinases,
http://linkedlifedata.com/resource/pubmed/chemical/Vasopressins,
http://linkedlifedata.com/resource/pubmed/chemical/fasudil,
http://linkedlifedata.com/resource/pubmed/chemical/rho-Associated Kinases
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0024-3205
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
22
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pubmed:volume |
72
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
103-12
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:12409149-1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine,
pubmed-meshheading:12409149-Animals,
pubmed-meshheading:12409149-Cardiomyopathies,
pubmed-meshheading:12409149-Chronic Disease,
pubmed-meshheading:12409149-Disease Models, Animal,
pubmed-meshheading:12409149-Disease Progression,
pubmed-meshheading:12409149-Electrocardiography,
pubmed-meshheading:12409149-Enzyme Inhibitors,
pubmed-meshheading:12409149-Fibrosis,
pubmed-meshheading:12409149-Intracellular Signaling Peptides and Proteins,
pubmed-meshheading:12409149-Kinetics,
pubmed-meshheading:12409149-Male,
pubmed-meshheading:12409149-Protein-Serine-Threonine Kinases,
pubmed-meshheading:12409149-Rats,
pubmed-meshheading:12409149-Vasopressins,
pubmed-meshheading:12409149-rho-Associated Kinases
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pubmed:year |
2002
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pubmed:articleTitle |
Effects of Rho-kinase inhibitor on vasopressin-induced chronic myocardial damage in rats.
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pubmed:affiliation |
First Laboratory for Pharmacology, Institute of Life Science Research, Asahi Kasei Corporation, 632-1, Mifuku, Ohito-Cho, Tagata-Gun, 410-2321, Japan.
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pubmed:publicationType |
Journal Article
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