基于生理学的多二-153的药理动力学建模:跨物种推断和人类暴露模拟
Ji-Hun Jang1, Seung-Hyun Jeong2,3
1College of Pharmacy, Chonnam National University, 77 Yongbong-Ro, Buk-Gu, Gwangju, 61186, Republic of Korea.
Archives of toxicology
|December 26, 2025
概括
聚二-153 (PCB-153) 在人体脂肪组织中积累. 一个新的基于生理学的药理动力学 (PBPK) 模型预测了PCB-153的组织积累,改善了对持久性有机污染物的人类风险评估.
科学领域:
- 环境化学环境化学
- 毒理学 毒理学 毒理学
- 药理动力学 药理动力学
背景情况:
- 聚二-153 (PCB-153) 是一种持久性有机污染物,因其高脂溶性在人体脂肪组织中长期积累而闻名.
- 目前对PCB-153的风险评估通常依赖于血液度,缺乏组织水平的定量暴露评估.
- 需要一个基于生理学的药理动力学 (PBPK) 模型来预测PCB-153的内部暴露和组织积累.
研究的目的:
- 为PCB-153建立一个基于人体生理学的药理动力学 (PBPK) 模型.
- 量化预测PCB-153在主要人体器官中的组织积累.
- 为准确和科学的人类风险评估工具提供基础,用于持久有机污染物.
主要方法:
- 基于小鼠实验数据,构建并验证了PCB-153的PBPK模型.
- 从模型中推断出来,建立了一个全身人类PBPK模型.
- 在单次和重复暴露场景 (RfD) 下执行蒙特卡洛模拟,以预测成年人群的组织度.
主要成果:
- 脂肪组织表现出最高的PCB-153积累,平均分离系数 (Kp) 在一次剂量后为795,725,在重复RfD暴露下为4961.
- 在大脑,皮肤和肝脏中观察到显著的PCB-153分布,反映了脂肪组织中的积累模式.
- 主要器官的平稳状态度表明,即使在较低的外部暴露剂量 (RfD) 中,也存在潜在的积累.
结论:
- 开发的人类PBPK模型准确量化了PCB-153的组织特异积累.
- 结果突出了主要器官中PCB-153大量积累的可能性,需要对慢性毒性进行保守的风险评估.
- PBPK模型为改进人类暴露评估和高度溶解的环境污染物的标准化提供了科学基础.
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