Xia-min Hu1, Fan-dian Zeng. 1. Institute of Clinical Pharmacology, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China.
Abstract
AIM: To investigate the protective effects of sodium beta-aescin on cerebral ischemia-reperfusion injury in rats. METHODS: Rats were pretreated with sodium beta-aesein for 7 d and then subjected to cerebral ischemia-reperfusion injury induced by a middle cerebral artery occlusion (MCAO). The neurological outcome was evaluated by the Longa's method; The infarct volume was assessed by hemmatoxylin-Eosin staining and the cerebral water content was measured by dry weight method. The activities of SOD, GSH-Px, CAT, Na+ -K+ -ATPase and the MDA content were measured in the cortex and hippocampus of ischemic and non-ischemic hemisphere. RESULTS: Sodium beta-aescin significantly reduced the volume of cerebral infarct and water content, and ameliorated the neurological deficit (P < 0.05). In vehicle-treated rats, the activities of SOD, GSH-Px and Na+ -K+ -ATPase in the cortex and hippocampus of ischemic hemisphere were all decreased (P < 0.01) , while the CAT activity was slightly elevated and the MDA of content was significantly increased (P < 0.01) compared with the sham-operated group. After treated with sodium beta-aescin, the effects on recovery of SOD, GSH-Px, Na+ -K+ -ATPase activities were observed (P < 0.05), and the MDA content was reduced (P < 0.05). CONCLUSION: These results showed that pretreatment with sodium beta-aescin can attenuate brain injury and its antioxidant activity on rats which encountered cerebral ischemia-reperfusion.
AIM: To investigate the protective effects of sodium beta-aescin on cerebral ischemia-reperfusion injury in rats. METHODS:Rats were pretreated with sodium beta-aesein for 7 d and then subjected to cerebral ischemia-reperfusion injury induced by a middle cerebral artery occlusion (MCAO). The neurological outcome was evaluated by the Longa's method; The infarct volume was assessed by hemmatoxylin-Eosin staining and the cerebral water content was measured by dry weight method. The activities of SOD, GSH-Px, CAT, Na+ -K+ -ATPase and the MDA content were measured in the cortex and hippocampus of ischemic and non-ischemic hemisphere. RESULTS:Sodium beta-aescin significantly reduced the volume of cerebral infarct and water content, and ameliorated the neurological deficit (P < 0.05). In vehicle-treated rats, the activities of SOD, GSH-Px and Na+ -K+ -ATPase in the cortex and hippocampus of ischemic hemisphere were all decreased (P < 0.01) , while the CAT activity was slightly elevated and the MDA of content was significantly increased (P < 0.01) compared with the sham-operated group. After treated with sodium beta-aescin, the effects on recovery of SOD, GSH-Px, Na+ -K+ -ATPase activities were observed (P < 0.05), and the MDA content was reduced (P < 0.05). CONCLUSION: These results showed that pretreatment with sodium beta-aescin can attenuate brain injury and its antioxidant activity on rats which encountered cerebral ischemia-reperfusion.