费里丁:一种在临床决策中需要小心的生物标志物
Baptiste Lemaire1,2, Miguel A Frias1, Olivier Golaz1
1Diagnostic Department, Geneva University Hospitals, 1205 Geneva, Switzerland.
Diagnostics (Basel, Switzerland)
|February 24, 2024
概括
费里丁测试显示了测试之间的显著差异,影响铁缺乏症诊断. 方法和特定区域的参考间隔对于准确的结果至关重要,因为统一的值可能会导致错误.
科学领域:
- 临床化学 临床化学
- 血液学 血液学 血液学
- 诊断检测试验 诊断检测试验
背景情况:
- 费里是铁状况的一个关键生物标志物.
- 为了准确的临床解释,费里丁测试的标准化至关重要.
- 测试间的变化可能会影响铁缺乏症的诊断.
研究的目的:
- 为了比较三个CE标记测试中的费里丁测试间的差异.
- 评估这些差异对参考区间 (RI) 的影响.
- 根据不同的测定方法,确定缺铁 (ID) 个体的比例.
主要方法:
- 分析了来自瑞士三个地区的420名健康献血者的血和血清样本.
- 用电化学发光 (ECL),乳免疫度测定 (LIA) 和发光氧道免疫测定 (LOCI) 来测量费里丁度.
- 使用帕辛-巴布洛克分析评估矩阵和方法之间的一致性;根据方法评估ID患病率.
主要成果:
- 血清和肝素化血没有显示出费里丁值的显著差异.
- 在三个方法 (ECL,LIA,LOCI) 之间观察到实质性的中位数费里丁差异 (p < 0.001).
- 鉴于铁缺乏症的个体比例因方法而异,差异很大,从2.86%到9.05%.
结论:
- 血清和肝素化血可以互换用于费里测试.
- 测试间显著的变异性要求对ferritin进行方法和区域特定的参考间隔.
- 统一的费里丁值可能会导致诊断错误,并影响铁缺乏症诊断.
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