对CJD来说,血清试验优于脑脊液分析。因为S100的生物半衰期短(2小时)18,在蛛网膜下出血患者及心外科手术的循环暂停期27,升高的血清S100 浓度很快降低,但在CJD病程中,因为星形细胞激活而S100浓度不下降。因而,根据暂时性升高的特点,鉴别诊断很容易排除伴血清S100浓度升高的其他急性疾病。此外,因为人及牛S100的高度同源性28,血清检测也可用于无临床症状牛海绵状脑病的诊断。
(张星虎 译 许贤豪 校)
参考文献
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