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- W947035705 abstract "目的探讨β-淀粉样蛋白25-35片段（Aβ25-35）对体外培养的大鼠嗜铬瘤细胞PC12细胞促凋亡机制。方法采用四甲基偶氮唑蓝（MTT）法观察不同浓度的Aβ25-35干预PC12细胞24h后的细胞活性;将细胞分为对照组、实验组（即20 mmol/L Aβ25-35组）,流式细胞技术观察两组PC12细胞凋亡率;免疫细胞化学染色法观察PC12细胞凋亡基因caspase-3的表达。结果PC12细胞活性呈Aβ25-35剂量依赖性降低,且浓度为20 mmol/L时降低最显著;PC12细胞实验组的凋亡率为23.03%±1.22%,对照组为2.42%±0.87%（P〈0.01）;caspase-3实验组的阳性表达较对照组明显增加（P〈0.01）。结论Aβ可通过激活促凋亡基因caspase-3诱导PC12细胞凋亡。" @default.
- W947035705 created "2016-06-24" @default.
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- W947035705 date "2009-01-01" @default.
- W947035705 modified "2023-09-23" @default.
- W947035705 title "β-淀粉样蛋白通过激活caspase-3诱导PC12细胞凋亡" @default.
- W947035705 hasPublicationYear "2009" @default.
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