健康老年人的血中含有的类:方法的发展,时间的变化和暴露的决定因素
Ke Fang1, Xiaojie Guo2, Runming He1
1China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China.
Journal of hazardous materials
|June 28, 2025
概括
一种新方法有效地从小量的血中提取化 (CPs),从而实现精确的人类生物监测. 在老年人中评估了暴露水平,特别是短链CP,揭示了饮食联系.
科学领域:
- 环境化学环境化学
- 毒理学 毒理学 毒理学
- 分析化学 分析化学
背景情况:
- 甲 (CPs) 是一种具有广泛工业用途的持久性有机污染物.
- 人类通过环境和饮食途径暴露于CP,引发了健康问题.
- 从生物监测样本中提取CP的现有方法往往是低效和昂贵的.
研究的目的:
- 开发一种新的,快速和高效的方法,用于在最小的人类血体积中同时量化CP.
- 在老年人群中描述内部CP暴露的短期变化.
- 为了确定人体中CP的主要暴露途径.
主要方法:
- 从50μL的血中同时提取各种CP链长度 (vSCCP,SCCP,MCCP,LCCP) 的简化预处理方法的开发.
- 该方法的应用,在5个月内对来自76名老年人的315个血样本进行分析.
- 利用相关性分析和线性混合效应模型 (LMM) 来确定暴露途径.
主要成果:
- 该方法实现了低检测极限 (0.021.80 ng/mL) 和量化极限 (0.067.21 ng/mL) 的高准确度和精度.
- 观察到SCCP (98.73%) 和vSCCP (90.48%) 的高检测频率.
- SCCP (6.12 ng/mL) 和vSCCP (0.91 ng/mL) 的平均血度最高,随着时间的推移趋势下降.
结论:
- 开发的方法为CP生物监测提供了显著的进步,使有限的血样本能够有效分析.
- 饮食被确定为CP的主要暴露途径,室内卫生也显示了关联.
- 这项研究为了解CP暴露动态和全球范围内减轻相关健康风险提供了基础.
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