电化学治疗点检测测血清度:与传统方法的比较和同时使用药物的检测
Johanna K Kujala1,2, Terhi J Lohela1,2,3, Niklas Wester4,5,6
1Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
Basic & clinical pharmacology & toxicology
|October 7, 2025
概括
使用碳纳米管的新点照顾 (POC) 测试提供了一种有希望的,快速的方法来测量过量病例中的血清甲醇 (乙氨基) 水平,有助于更快的治疗. 这种电化学测试显示了潜力,尽管在较低度下出现了一些初始不准确性.
科学领域:
- 毒理学 毒理学 毒理学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 快速测量血清甲醇 (乙氨基) 对于在过量的情况下及时给予抗剂至关重要.
- 中央化实验室分析的延迟可能会阻碍及时的治疗干预.
- 像光电酶法 (PEM) 和UHPLC-DAD-CAD这样的现有方法在速度或可访问性方面存在局限性.
研究的目的:
- 评估一种新的电化学单壁碳纳米管/基于Nafion的治疗点 (POC) 方法在患者血清中检测的可行性.
- 将POC方法的性能与标准方法 (PEM和UHPLC-DAD-CAD) 的性能进行比较.
- 评估与药物和物质同时使用对POC青醇测量的潜在干扰.
主要方法:
- 开发了一种新的电化学POC传感器,使用单壁碳纳米管和Nafion.
- 该POC方法在99个血清样本上进行了测试,这些血清样本来自可疑服用过量片的患者.
- 对超高性能液态染色学 (UHPLC-DAD-CAD) 和光电酶法 (PEM) 的性能进行了验证.
- 质谱分析了900种同时使用的物质,以评估干扰.
主要成果:
- 患者样本中的度高达2100μmol/L,其中19%的度超过治疗值 (≥200μmol/L).
- 与UHPLC-DAD-CAD相比,POC方法在度≥30μmol/L时显示了10%的错误阳性和15%的错误阴性.
- 所有POC假阴性发生在45μmol/L以下;PEM显示8%的联合假阳性/假阴性与UHPLC-DAD-CAD相比.
- 检测到的并发物质 (例如,咖啡因,抗抑郁药物) 并没有干扰POC甲醇测量.
结论:
- 这种新型电化学POC方法在疑似中毒的情况下显示出迅速的,现场的血清类醇量化有前途.
- 该技术可以及时提供对启动抗剂疗法至关重要的结果,尽管需要进一步改进以获得低度准确性.
- 该方法对常见的共同摄入物质的干扰具有稳定性.
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