2.
不同浓度LPS刺激24 h后星形胶质细胞存活率比较 （n=3，x±s，%）
| 组别 | 星形胶质细胞存活率 |
| 注：a示与对照组比较，P < 0.05。 | |
| 对照组 | 103±11 |
| LPS 1 μmol/L | 135±13 |
| LPS 5 μmol/L | 160±20a |
| LPS 10 μmol/L | 101±15 |
| F值 | 15.86 |
| P值 | < 0.001 |
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