在生理条件下从伤口包裹中泄漏的二酸盐的定量风险评估
Ania Stras1,2, Sarah Mannaert3, Michaël Canfyn1
1Medicines and Health Products, Sciensano, Ixelles, Belgium.
Contact dermatitis
|December 2, 2025
概括
伤口包裹中残留的二氧化酸盐构成一个风险. 特别是六甲二酸盐 (HDI) 可以引起过敏性接触性皮肤炎 (ACD) 和敏感性,在许多产品中超过安全暴露水平.
科学领域:
- 化学分析 化学分析
- 毒理学 毒理学 毒理学
- 皮肤病学 皮肤病学
背景情况:
- 双酸盐是聚氨中常见的敏感剂,与过敏接触性皮肤炎 (ACD) 有关.
- 在医疗器械中检测到的残留二酸盐,如伤口,通常使用非生理提取方法.
- 这限制了对实际皮肤暴露风险的理解.
研究的目的:
- 开发和验证一种生理学上相关的方法,用于量化特定的二酸盐 (MDI,DMDI,HDI,TDI,IPDI) 从伤口敷料中出.
- 评估从这些液化二酸盐中诱导敏感化和引起ACD的风险.
主要方法:
- 在人工汗水中稳定了二酸盐标准,以模仿皮肤暴露.
- 一种优化的LC-MS/MS方法被开发和验证用于量化.
- 该方法应用于36种商业伤口包裹,暴露水平与毒理值相比.
主要成果:
- 经过验证的方法可靠量化了度≥15ppb的目标二酸盐 (IPDI除外).
- 在44%的受试伤口包裹中发现了可量化的残留二酸盐.
- 超过50%的HDI阳性和20%的MDI阳性样本超过了可接受的敏感化暴露水平,并且都超过了ACD的非引起剂量.
结论:
- 成功开发和验证了一种在生理上相关的方法,用于量化伤口包裹中的二氧化酸盐残留物.
- 六甲二酸盐 (HDI) 对引起敏感性的风险很大.
- 从伤口敷料中出HDI和MDI可以在敏感的人身上引起ACD.
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