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抗体测量的不确定性量化:物理原理和对标准化的影响

Paul N Patrone¹, Lili Wang¹, Sheng Lin-Gibson¹

¹National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA.

Physical review. E

|March 19, 2025

概括

协调抗体测量对于可靠的诊断至关重要. 本研究引入了热力学理论和回归分析,以量化不确定性,并改善跨平台血清学结果的可比性.

科学领域:

免疫学免疫学免疫学
生物物理学的生物物理.
医学诊断医学诊断医学诊断

背景情况:

协调血清学测量对于比较跨平台的诊断结果和为医疗决策提供信息至关重要.
目前对协调的理论基础缺乏在抗体热力学和不确定性量化 (UQ) 中的探索.
这种限制影响了SARS-CoV-2血清学,限制了标准的有用性并降低了信心.

研究的目的:

开发用于抗体正常化和协调的严格理论.
提出统一的数学定义,量化不确定性.
建立热力学原理与血清学测量协调之间的联系.

主要方法:

开发了一个数学框架来定义和量化协调中的不确定性.
利用血清学测量的热力学描述,将其与抗体结合的吉布斯自由能量联系起来.
诱导了直接协调的回归分析和基于优化的规范化方法来验证一致性.

主要成果:

提出了一种新的统一数学定义,包括不确定性量化.
证明热力学方法,通过吉布斯自由能量,可以直接协调测量.
发现,在合理的条件下,选择参考材料不会增加协调不确定性.

结论:

开发的理论为抗体正常化和协调提供了严格的基础.
热力学原理为直接协调血清学测量和减少不确定性提供了一条途径.
这些发现支持使用参考材料,如SARS-CoV-2的单克隆抗体,而不会增加协调不确定性.

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