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《Chinese Pharmacological Bulletin》 1991-01
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Li Linxian, Wang Zican, Huang Zhihong ( Dept. of Pathophysiology, Kunming Medical College, Kunming 650031 )  
By 45 min ligation of the gerbils' bilateral carotid arteries and then 24h reperfusion, the effects of panax notogniseng saponins ( PNS ) and SOD on the stroke index of 45 min cerebral ischemia followed by reperfusion 24h were evaluated. The results indicated that PNS and SOD could decrease the stroke index and mortality dramatically.We speculated that the beneficial effect of PNS on cerebral damage folio-wing ischemia with reperfusion might be due to anti-free radical action. The effects of PNS, Rb1 Rg1 and nimodi-pine on focal cerebral ischemia were studied by 12h occlusion of middle cerebral artery in squirrel monkeys. Both Rb1 and nimodipi-ne alleviated the brain edema and calcium content in ischemic tissue significantly, and reduced the infarcted size, while the effect of Rg1 was not statistical. The results suggested that the anti-cerebral ischemia effect of Saponin Rb1 probably contributes to its calcium antagonism.
【Fund】: 国家自然科学基金资助课题
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