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在斑马鱼中由聚乙烯纳米塑料引发的发育性心血管障碍是通过氧化应激介导的
Febriyansyah Saputra1, Yu-Tzu Tsao2, Agoes Soegianto3
1Department of Biology, Faculty Sciences and Technology, Universitas Airlangga, Campus C, Surabaya, 60115, Indonesia; Mathematics and Natural Sciences Doctoral Program, Faculty of Science and Technology, Universitas Airlangga, Surabaya, 60115, Indonesia.
Life sciences
|January 26, 2026
概括
聚乙烯纳米塑料 (PSNPs) 损害斑马鱼胚胎的心血管系统,导致发育问题. 像谷氨 (GSH) 这样的抗氧化剂可以防止这些毒性影响.
科学领域:
- 环境毒理学环境毒理学
- 心血管生物学 心血管生物学
- 纳米毒理学研究
背景情况:
- 在水生生态系统中,聚乙烯纳米塑料 (PSNPs) 的流行率越来越高.
- 聚类天然气带来了生态威胁和人类健康问题,特别是心血管问题.
- 斑马鱼胚胎是毒理学研究的关键脊椎动物模型.
研究的目的:
- 研究PSNP对斑马鱼胚胎的心脏毒性影响.
- 在暴露于PSNP后评估心血管功能和形态.
- 确定PSNP诱导心脏毒性的机制.
主要方法:
- 暴露Tg(fli1:EGFP) 斑马鱼胚胎在不同度 (0.0110μg/mL) 的PSNPs (25nm) 中96小时.
- 评估心血管功能 (心率,血细胞速度,血管形成,大动脉直径,心室体积).
- 分析与心血管发育和氧化应激相关的活性氧物种 (ROS),亡和基因表达.
主要成果:
- 暴露于PSNP会导致心血管异常:心率变化,心周胀,血管形成受损,红细胞速度降低,大动脉直径降低和心室体积降低.
- 增加的ROS和亡表明氧化应激是关键的毒性机制.
- 基因表达分析揭示了心血管发育,亡信号传递和抗氧化剂防御途径的破坏.
结论:
- 通过氧化应激,PSNP在斑马鱼胚胎中诱导心脏毒性.
- 谷氨 (GSH) 显著减轻了PSNP诱导的心脏毒性,证实了氧化应激的作用.
- 结果强调需要解决纳米塑料污染问题,并探索减轻健康影响的抗氧化剂策略.
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