| Cilostazol Reduces the Risk of Hemorrhagic Infarction After Administration of Tissue-Type Plasminogen Activator in a Murine Stroke Model. | |
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MedLine Citation:
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PMID: 22033992 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: Prior use of antiplatelet agents improves stroke outcome in patients undergoing thrombolytic therapy as shown by reduced arterial reocclusion, although the risk of cerebral hemorrhage can be increased. METHODS: The effect of cilostazol, an antiplatelet drug that improves endothelial function through upregulation of intracellular cAMP, on cerebral hemorrhage after thrombolytic therapy was investigated using a highly reproducible transient ischemia model. RESULTS: Treatment with cilostazol for 7 days before ischemia significantly suppressed the risk and severity of cerebral hemorrhage after injection of tissue-type plasminogen activator, although treatment with aspirin had no such protective effect compared with nontreated mice. Immunohistological analysis revealed that treatment with cilostazol suppressed disruption of the microvasculature in the ischemic area associated with reduced matrix metalloproteinase-9 activity. CONCLUSIONS: Our results suggest that patients treated with cilostazol before onset of stroke could have a lower risk of cerebral hemorrhage after thrombolytic therapy and might also have a longer therapeutic time window for thrombolysis. Furthermore, the risk of cerebral hemorrhage can be significantly altered by prestroke therapies, and analysis of the effects of multiple drugs on tissue-type plasminogen activator-induced cerebral hemorrhage in animal models is essential for the extending safe and effective thrombolytic therapy to a wider group of patients. |
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Authors:
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Yukiko Kasahara; Takayuki Nakagomi; Tomohiro Matsuyama; David Stern; Akihiko Taguchi |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-27 |
Journal Detail:
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Title: Stroke; a journal of cerebral circulation Volume: - ISSN: 1524-4628 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0235266 Medline TA: Stroke Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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From the Department of Cerebrovascular Disease, National Cerebral and Cardiovascular Center, Osaka, Japan; the Institute for Advanced Medical Sciences, Hyogo College of Medicine, Hyogo, Japan; and the Executive Dean's Office, University of Tennessee, Knoxville, TN. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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