基于它对人类肠道微生物群的影响,重新评估了对泰洛的微生物学上可接受的每日摄入量
Min Ji Kim1, Ji Young Kim1, Jang Duck Choi1
1Pesticide and Veterinary Drug Residues Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong 2-ro, Osong, Cheongju, Chungcheongbuk-do 28159 Republic of Korea.
Toxicological research
|January 15, 2024
概括
本研究确定了鱼类中 tylosin 的基于健康的指导值,发现当使用最新的风险评估方法时,通过饮食暴露于残留物不太可能构成公共卫生风险.
科学领域:
- 兽医药理学和毒理学 兽医药理学和毒理学
- 水生动物卫生 水生动物卫生
- 食品安全风险评估 食品安全风险评估
背景情况:
- 鱼类有限的兽医药需要重新使用牲畜药物.
- 泰洛辛是一种有效的牲畜抗生素,被考虑用于水生环境.
- 需要对鱼类中的泰洛进行最新的毒理和微生物学评估.
研究的目的:
- 确定鱼类中泰洛的基于健康的指导值 (HBGV) 和最大残留量限制 (MRL).
- 根据当前的数据和指导方针,重新评估微生物学上可接受的每日摄入量 (mADI).
- 评估慢性饮食暴露以确认MRL的适当性.
主要方法:
- 从FSCJ报告中确定了微生物学起点 (0.308μg/mL MIC50).
- 根据VICH指南,使用修订的结肠内容体积 (500毫升) 更新了mADI导出.
- 应用了校正因子 (0.224) 来考虑泰洛辛代谢和便结合.
- 通过比较估计的通过饮食暴露于mADI.计算的危险指数.
主要成果:
- 微生物学出发点为0.308微克/毫升 (MIC50).
- 微生物学上可接受的每日摄入量 (mADI) 评估为0.01 mg/kg bw/day.
- 危害指数不超过100%,表明因慢性暴露于泰洛残留物而引起的公共健康问题较低.
- 该研究为食品中的兽药残留物风险管理提供了科学依据.
结论:
- 根据经过修订的微生物风险评估,更新了鱼类中的 tylosin 的 HBGV 和 MRL.
- 在韩国首次应用mADI概念,用于水生兽药药物残留物的评估.
- 在拟议的MRL水平下,证实了鱼类中的泰洛残留物的安全性,支持其兽医用途.
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