Methods The levels of Asp,Glu and NSE in CSF of36ALS patients were measured by high effect liquid phase chromatograph and enzyme-linked im munosorbent assays(ELISA). Their results were analysed statis tcally.

• 方法采用高效液相色谱仪和酶联免疫测定法分别测定36例ALS患者脑脊液中Asp、Glu和NSE水平,并对测定结果进行统计学分析。