通过有毒动力学建模,体外-体内外推算和新方法方法论,进一步了解人类的变异性
Anna Kreutz1,2, Xiaoqing Chang3, Helena T Hogberg4
1Inotiv, 601 Keystone Park Drive, Suite 200, Morrisville, NC, 27560, USA. anna.kreutz@inotiv.com.
基于生理学的毒动力学 (PBTK) 建模整合了生理学和计算方法来估计内部暴露. 这种方法通过表征变异性和支持监管决策来加强化学风险评估.
科学领域:
- 毒理学和药理学 毒理学和药理学
- 计算生物学 计算生物学
- 风险评估 风险评估
背景情况:
- 毒动力学 (TK) 和基于生理学的毒动力学 (PBTK) 建模通过估计内部暴露来推进化学和制药研究.
- 30年来TC模型的指数增长是由于需要评估毒理学变异性和不确定性因素.
- PBTK模型适应了各种因素,如生理学,遗传学和暴露场景,捕捉了时间变化的动态.
研究的目的:
- 审查TCK和PBTK模型的演变,重点是纳入可变性和复杂风险.
- 为评估人口和生命阶段变异性提供当前和新兴策略的最新信息.
- 要突出在安全研究中使用PBTK模型进行体外-体内抽取 (IVIVE) 的应用.
主要方法:
- 关于TC和PBTK模型的结构,演变和应用的文献综述.
- 讨论可变性评估的实验和建模策略.
- 检查IVIVE方法及其与PBTK模型的整合.
主要成果:
- PBTK模型提供了一个强大的框架来评估化学风险评估中的可变性.
- 进步包括纳入人口和生命阶段的变化,以及复杂的暴露场景.
- IVIVE与PBTK模型相结合,为数据较差的化学品提供人体特异性风险信息.
结论:
- PBTK建模对于表征毒理学变异性和为风险评估决策提供信息至关重要.
- 新兴战略和IVIVE加强了PBTK模型在药物和化学安全方面的应用.
- 案例研究表明PBTK建模的新应用和监管实用性.
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