Effect of Long-Term Treatment with Fimasartan on Transient Focal Ischemia in Rat Brain
SCIE
SCOPUS
- Title
- Effect of Long-Term Treatment with Fimasartan on Transient Focal Ischemia in Rat Brain
- Authors
- Kim Chi Kyung; Yang Xiu-Li; Kim Young-Ju; Choi In-Young; Jeong Han-Gil; Park Hong-Kyun; Kim Dohoung; Kim Tae Jung; Jang Hyunduk; Ko Sang-Bae; Yoon Byung-Woo
- Date Issued
- 2015-09
- Publisher
- Hindawi Publishing Corporation
- Abstract
- Fimasartan is a newly developed angiotensin receptor blocker, which may have protective effects during myocardial infarction or atherosclerosis. In this context, we investigated the effects of long-term treatment with low-dose fimasartan on focal ischemia in rat brain. We induced focal ischemia in brain by transient intraluminal occlusion of middle cerebral artery (MCA) and administered low-dose (0.5 mg/kg) or regular doses (1 or 3 mg/kg) of fimasartan via intravenous routes. After the administration of low-dose (0.5 mg/kg) fimasartan, blood pressure did not decrease compared to the phosphate-buffered saline-(PBS-) control with MCA occlusion (MCAO) group. The infarct volume and ischemic cell death were reduced in the low-dose fimasartan-treated group (46 +/- 41mm(3) for 0.5 mg/kg and 153 +/- 47mm(3) for PBS-control with MCAO; P < 0.01) but not in the regular-dose groups. Low-dose fimasartan treatment improved functional recovery after ischemia and significantly decreased mortality. In our study, fimasartan reduced the degradation of I kappa B and the formation of an inflammatory end-product, COX-2. As a result, the recruitment of inflammatory cells in the peri-infarct area decreased in fimasartan-treated group. We have demonstrated that long-term, lowdose fimasartan treatment improved outcomes after focal ischemia in the brain via a reduction of inflammation.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/120839
- DOI
- 10.1155/2015/295925
- ISSN
- 2314-6133
- Article Type
- Article
- Citation
- BioMed Research International, vol. 2015, 2015-09
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- There are no files associated with this item.
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