阿斯塔丁可以减轻微囊素LR在斑马鱼胚胎上的炎症毒性
1CAS Key Laboratory of High Magnetic Field and Ion-beam Physical Biology, Institute of Intelligent Machines, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China; Science Island Branch of Graduate School, University of Science & Technology of China, Hefei, China.
Comparative biochemistry and physiology. Toxicology & pharmacology : CBP
|November 21, 2025
概括
阿斯丁 (AST) 有效地保护斑马鱼胚胎免受微素-LR (MC-LR) 毒性. 这种天然抗氧化剂通过对抗氧化应激会减少死亡率,形和炎症.
科学领域:
- 环境毒理学环境毒理学
- 海洋生物学 海洋生物学
- 生物化学 生物化学
背景情况:
- 微素-LR (MC-LR) 是一种强烈的毒素,引起了严重的环境和健康问题.
- Astaxanthin (AST) 是一种天然的胡卜素,具有已知的抗氧化和抗炎性质.
研究的目的:
- 在斑马鱼胚胎中研究阿斯丁对微囊素-LR毒性的保护作用.
- 阐明阿斯塔克桑保护作用的基本机制.
主要方法:
- 斑马鱼胚胎暴露于MC-LR和AST的次致命度.
- 评估的死亡率,变形率,活性氧物种 (ROS),甲酸 (MDA) 水平,抗氧化酶活性 (SOD,CAT,GR) 和炎症标志物.
- 进行了转录组分析,以确定受影响的信号通路.
主要成果:
- AST显著降低了MC-LR诱导的死亡率 (39.8%) 和形 (60.0%).
- AST降低了ROS和MDA水平,同时增强了抗氧化酶活动 (SOD,CAT,GR).
- 通过减少中性红色吸收,改善宿主抵抗力和降低关键细胞因子 (IL-1β,IL-6,IL-8,TNF-α) 的调节,AST改善了炎症.
- 转录组分析表明,AST抑制了C型莱克受体信号通路.
结论:
- 阿斯塔丁有效地中和了斑马鱼胚胎中的MC-LR毒性.
- AST通过对抗氧化应激和表现出抗炎和免疫调节作用来发挥保护作用.
- AST显示出在水产养殖和环境卫生应用中使用的潜力,以减轻毒素的影响.
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