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KMID : 1161420180210050474
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Journal of Medicinal Food
2018 Volume.21 No. 5 p.474 ~ p.480
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Licorice Pretreatment Protects Against Brain Damage Induced by Middle Cerebral Artery Occlusion in Mice
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Lim Chi-Yeon
Lim Se-Hyun
Lee Byoung-Ho
Kim Bu-Yeo
Cho Su-In
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Abstract
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Licorice is extracted from the roots of plants in the Glycyrrhiza genus, especially Glycyrrhiza uralensis in China and Korea. It has several pharmacological activities, including neuro-protective, anti-fungal, and anti-cariogenic effects. Ischemia/reperfusion-induced brain injury is a leading cause of adult disability and death; thus, the identification of anti-apoptotic, neuro-protective therapeutic agents is viewed as an attractive drug development strategy. Infarct volumes and the expression of several apoptosis-related proteins, including Bcl-xL, Bcl-2, caspase-8, and caspase-9, were evaluated by western blotting in the brains of mice subjected to middle cerebral artery occlusion (MCAO). Three consecutive days of oral pretreatment with the methanol extract of licorice (GRex) significantly reduced infarct volumes 24?h after MCAO. In addition, GRex effectively inhibited the activation of caspase-9 by upregulating protein expression of Bcl-xL and Bcl-2. The neuro-protective effect of licorice was due to its regulation of apoptosis-related proteins. These data suggest that licorice could be a potential candidate for the treatment of ischemia-induced brain damage.
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KEYWORD
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apoptosis, licorice, stroke
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