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International Journal Of Bilogical Sciences

.: Home > International Journal Of Bilogical Sciences > 2016 > Volume 12 Number 1 > Min Cai, Yulong Ma, Wei Zhang, Shiquan Wang, Ying Wang, Li Tian, Zhengwu Peng, Huaning Wang, Tan Qingrong

Apigenin-7-O-β-D-(-6''-p-coumaroyl)-Glucopyranoside Treatment Elicits Neuroprotective Effect against Experimental Ischemic Stroke

Min Cai, Yulong Ma, Wei Zhang, Shiquan Wang, Ying Wang, Li Tian, Zhengwu Peng, Huaning Wang, Tan Qingrong
1. Department of Psychiatry; 2. Department of Anesthesiology; 3. Department of Pharmacology; Xijing hospital, the Forth Military Medical School These authors contributed equally to this work. Corresponding author: Dr. Tang Qingrong, MD. PhD., Department of Psychiatry, Xijing Hospital, the Fourth Military Medical University, Xi’an 710032, Shaanxi Province, China. Tel: +86-29-89661593; Fax: +86-29-89661593; E-mail: tanqingr@fmmu.edu.cn
Abstract :

Stroke is the major cause of permanent disability and mortality in China. Apigenin-7-O-β-D-(-6''-p-coumaroyl)-glucopyranoside (APG) is a glycoside subtype of apigenin and has the antioxidant activity; however, whether and how it plays a neuroprotective role following cerebral ischemia remains unknown. In present study, we adopted the oxygen glucose/reperfusion model in PC12 cells, bilateral common carotid artery occlusion model in C57B6 mice and middle cerebral artery occlusion model in SD rats to observe the therapeutic effects of APG on ischemic stroke. We also discussed the underlying mechanism. Treatment with 0.4 μg/ml or 0.8 μg/ml APG promoted cell viability and proliferation, reduced LDH release and apoptotic cell death levels in PC12 cells. Treatment with 50 mg/kg or 100 mg/kg APG at 30 minutes after reperfusion improved neurological outcomes in vivo, as demonstrated by elevation of neurological scores in both mice and rats. It also increased the number of survival neurons in mice and reduced infarct volume in rats. APG also increased the contents of Mn-SOD and the phosphorylation level of STAT3, elevated the antioxidant activity and reduced oxidative productions. These findings revealed a neuroprotective effect of APG, which possibly induced by the STAT3 phosphorylation-mediated Mn-SOD up-regulation.

Keywords :
Apigenin-7-O-β-D-(-6''-p-coumaroyl)-glucopyranoside (APG); cerebral ischemia/reperfusion; oxidative stress; manganese-superoxide dismutase

Date Deposited : 15 Mar 2016 10:20

Last Modified : 15 Mar 2016 10:20

Official URL: http://www.ijbs.com/v12i1

Volume 12, Number 1, - 2016 , ISSN 1449-2288

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