期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 13, 期 5, 页码 6089-6101出版社
MDPI
DOI: 10.3390/ijms13056089
关键词
brain ischemic injury; ischemic preconditioning; ischemic postconditioning; apoptosis; neuroprotection
资金
- National Nature Science Foundation [81000498]
- Nanjing Medical University Nature Science Foundation [09MJMUM107]
- Shanghai Science and Technology Committee [10140903200]
- Jiangsu Health International Exchange Program
Transient forebrain or global ischemia induces neuronal death in vulnerable CA1 pyramidal cells with many features. A brief period of ischemia, i.e., ischemic preconditioning, or a modified reperfusion such as ischemic postconditioning, can afford robust protection of CA1 neurons against ischemic challenge. Therefore, we investigated the effect of ischemic preconditioning and postconditioning on neural cell apoptosis in rats. The result showed that both ischemic preconditioning and postconditioning may attenuate the neural cell death and DNA fragment in the hippocampal CA1 region. Further western blot study suggested that ischemic preconditioning and postconditioning down-regulates the protein of cleaved caspase-3, caspase-6, caspase-9 and Bax, but up-regulates the protein Bcl-2. These findings suggest that ischemic preconditioning and postconditioning have a neuroprotective role on global brain ischemia in rats through the same effect on inhibition of apoptosis.
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