生物标志物 生物标志物
James Arthur Rock1, Anna McGuffin2, Tao Han3
1AriBio Co., Ltd, San Diego, CA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
脑脊液 (CSF) 阿尔茨海默病 (AD) 生物标志物测试在实验室之间显示出高准确性. Aβ1-42/Aβ1-40比率结果在统计学上是相同的,确保了可靠的AD诊断.
科学领域:
- 神经学 神经学
- 生物标志物研究 生物标志物研究
- 临床诊断 临床诊断 临床诊断
背景情况:
- 脑脊液 (CSF) 的生物标志物,包括Aβ1-42,Aβ1-40,和酸化的Tau物种,对于阿尔茨海默病 (AD) 诊断至关重要.
- 脊髓瘤检测的高准确性和精度导致了监管部门的批准和临床接受.
- 在两个全球实验室中评估了Fujirebio Lumipulse系统上的CSF Aβ1-42/Aβ1-40比率的实验室间准确性.
研究的目的:
- 评估阿尔茨海默氏病 (AD) CSF生物标志物测量的实验室间准确性和一致性.
- 确认Aβ1-42/Aβ1-40比率的可靠性,以便在不同测试场所进行一致的诊断解释.
- 为了验证Fujirebio Lumipulse系统用于标准化AD生物标志物分析的性能.
主要方法:
- 两个独立实验室 (美国肯塔基州和中国上海) 分析了15名患者的脑脊液样本,涵盖了测试动态范围.
- 在Fujirebio Lumipulse系统上使用Aβ1-42和Aβ1-40测试套件进行样本分析,并验证了质量控制.
- 使用德明线性回归分析来比较Aβ1-42/Aβ1-40比值,并评估解释协议.
主要成果:
- 德明回归分析显示了两个实验室之间的统计学上显著的正相关性 (Slope 0.964,R=0.9918).
- 斜率 (0.890-1.037) 和截面 (-0.0049-0.0072) 的95%置信区间显示出极好的一致性.
- 所有对脑细胞Aβ1-42/Aβ1-40比率 (阳性/异常,可能阳性,阴性) 的解释都显示实验室之间100%的一致性.
结论:
- 在两个独立实验室之间,CSF Aβ1-42/Aβ1-40比率测量在统计学上是相同的.
- 这些结果证实了Fujirebio Lumipulse系统对阿尔茨海默病生物标志物分析的高准确性和可靠性.
- 基于Aβ1-42/Aβ1-40比率的AD诊断类别的一致解释可以在不同的实验室环境中实现.
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