Source:http://linkedlifedata.com/resource/pubmed/id/17123488
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2007-1-12
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pubmed:abstractText |
The neuroprotective potential and therapeutic time window for fasudil, a Rho-kinase inhibitor (RKI), were evaluated for delayed neuronal death in gerbils. A preliminary screening was done on fasudil, ozagrel, and edaravone using a single administration in a delayed neuronal death study. Intraperitoneal (i.p.) administration of edaravone, a free radical scavenger (3, 10 mg/kg) immediately after re-circulation did not reduce neuronal degeneration. We previously reported that ozagrel, a thromboxane A(2) synthetase inhibitor (30 mg/kg) also did not reduce neuronal degeneration, while fasudil (3, 30 mg/kg) significantly protected against the ischemia-induced neuronal loss. To clarify the therapeutic time window of fasudil, which showed a positive effect in a preliminary screening, animals received their first i.p. administration of fasudil (10 mg/kg) 24 or 48 h after ischemia. Administration of fasudil twice daily was continued until day 6. Fasudil significantly protected against the ischemia-induced delayed neuronal death when the treatment was started 24 h after ischemia. In gerbils, hydroxyfasudil, an active metabolite of fasudil, was found following an i.p. administration of fasudil (10 mg/kg), and the value of the area under the plasma level curve of hydroxyfasudil was 7 times higher than that of fasudil. Hydroxyfasudil may contribute to the potency of fasudil. The present findings indicate that the RKI fasudil reduces ischemic neuronal damage with a wide therapeutic time window in gerbil, and may be useful in the treatment of acute ischemic stroke in humans.
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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/Antipyrine,
http://linkedlifedata.com/resource/pubmed/chemical/Free Radical Scavengers,
http://linkedlifedata.com/resource/pubmed/chemical/Neuroprotective Agents,
http://linkedlifedata.com/resource/pubmed/chemical/fasudil,
http://linkedlifedata.com/resource/pubmed/chemical/phenylmethylpyrazolone
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
1128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
175-80
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pubmed:meshHeading |
pubmed-meshheading:17123488-1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine,
pubmed-meshheading:17123488-Animals,
pubmed-meshheading:17123488-Antipyrine,
pubmed-meshheading:17123488-Cell Death,
pubmed-meshheading:17123488-Dose-Response Relationship, Drug,
pubmed-meshheading:17123488-Free Radical Scavengers,
pubmed-meshheading:17123488-Gerbillinae,
pubmed-meshheading:17123488-Ischemia,
pubmed-meshheading:17123488-Male,
pubmed-meshheading:17123488-Neurons,
pubmed-meshheading:17123488-Neuroprotective Agents,
pubmed-meshheading:17123488-Time Factors
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pubmed:year |
2007
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pubmed:articleTitle |
Wide therapeutic time window for fasudil neuroprotection against ischemia-induced delayed neuronal death in gerbils.
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pubmed:affiliation |
Research Center, Asahi Kasei Pharma Corporation 632-1, Mifuku, Izunokuni-shi, Shizuoka 410-2321, Japan. sato.sn@om.asahi-kasei.co.jp
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pubmed:publicationType |
Journal Article
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