五种抗生素对Q67的时间毒性相互作用的关键成分分析
Luyi Liang1, Litang Qin1,2, Yongan Liu1
1College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541006, China.
Toxics
|July 26, 2024
概括
这项研究研究了五种抗生素 (恩洛夫洛克萨,甲,trimethoprim,,红素) 对Vibrio qinghaiensis的联合毒性. 混合物毒性和相互作用是时间依赖的,比例影响结果.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 微生物学 微生物学
背景情况:
- 抗生素是持续出现的环境污染物.
- 混合抗生素暴露对生态系统和人类健康构成重大风险.
- 了解复杂混合物的毒性对于环境风险评估至关重要.
研究的目的:
- 评估单个抗生素及其混合物对*Vibrio qinghaiensis* sp.-Q67.的时间依赖性毒性.
- 分析复杂抗生素混合物中的毒性相互作用和成分贡献.
- 确定多种抗生素环境暴露中毒性的主要驱动因素.
主要方法:
- 使用统一设计度比率 (UDCR) 方法来设计九个治疗组.
- 采用了依赖时间的微板毒性试验来评估对*Vibrio qinghaiensis* sp.-Q67.7.的影响.
- 应用组合指数 (CI) 和剂量减少指数 (DRI) 方法来分析混合物毒性和相互作用.
主要成果:
- 抗生素混合物的毒性取决于时间,通常随着暴露持续时间增加到一个点.
- 每种抗生素在混合物中的比例显著影响了毒性相互作用的类型和程度.
- 在4小时后,trimethoprim (TMP) 占主导地位,而在更长的暴露时间内,enrofloxacin (ENR) 的影响力越来越大.
- 添加效应是最常见的相互作用类型 (66.6%),而对抗效应是最不常见的 (15.9%).
结论:
- 抗生素混合物的毒性是一个动态的过程,受暴露时间和成分比例的影响.
- 了解依赖时间的相互作用对于准确评估抗生素污染对环境的风险至关重要.
- 添加效应是最常见的相互作用,突出了联合抗生素暴露的累积风险.
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