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《JOURNAL OF APOPLEXY AND NERVOUS DISEASES》 1997-02
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The neuronal damage in the CA 1 region of hippocampus after cerebral ischemia

Pan Lixong, Yao Zhibin, Chen Yici. Department of Neurology, The sixth hospital of Guangzhou, Guangzhou, 510655  
The four vessal occulsion model as described previously by Pulsinelli Brierley was used. C fos protein induction in the early(8 hours) and delayed neuronal death in the CA 1 region of hippocampus in the late(7 days) were observed after being ischemia for 20 min and reperfused. C fos protein induction largely confined to the dentate gyrus, CA 3 region of hippocampus and amygdaloid nucleus 8 hours after ischemia and reperfusion. Little C fos protein like immunoreativity was seen in the CA 1 field. The silver impregnation of Gallyas et al results showed that neurons and their neuropil of the CA 1 region of hippocampus appeared to be dark gray or black which was degenerative staining 7 days after ischemia and reperfusion. But the dentate gyrus,CA 3 region of hippocampus and amygdaloid nucleus showed normal light yellow brown staining.The next slide in the silver impregnation procedure stained by the Hematoxylin Eosin showed that the CA 1 region of hippocampus had significant quantitative pyramidal cell loss(P0.01). In conclusion,C fos activation after cerebral ischemia may have regulated the delayed neuronal death in the CA 1 region of hippocampus.
【CateGory Index】: R-33
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