应用改进的大鼠应激模型证实海马CA3区神经元Nestin?NPY表达变化
【目的】 应用改良的连续?恒定复合型应激大鼠模型,观察其血浆肾素活性(PRA)?血管紧张素Ⅱ(AngⅡ)水平和海马CA3区的Nestin?NPY表达? 【方法】 将雌性成鼠束缚并倒悬应激6 h/d,用放射免疫法测定急性应激(3 d)后血浆PRA?AngⅡ水平,用免疫组织化学方法观察应激3 d?21 d后CA3区锥体层细胞的Nestin?NPY表达变化? 【结果】 ①急性应激组血浆PRA和AngⅡ水平比正常对照组显著降低(P<0.01),尤以PRA水平的变化更明显?②急?慢性应激组海马CA3区的Nestin?NPY免疫阳性反应产物总面积(SA)和体视学光密度(IOD)值均较对照组低(P&l...
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Format: | Article |
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Language: | zho |
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Editorial Office of Journal of Sun Yat-sen University
2008-01-01
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Series: | Zhongshan Daxue xuebao. Yixue kexue ban |
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Online Access: | http://xuebaoyx.sysu.edu.cn/zh/article/43580078/ |
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