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氧和二暴露会改变脊髓神经元发育和斑马鱼发育中的行为
Wuttiporn Rerkamnuaychoke1, Virinchipuram S Sreevidya1, Kurt R Svoboda1
1Joseph J. Zilber College of Public Health, University of Wisconsin-Milwaukee, Milwaukee, WI 53205, USA.
Ecotoxicology and environmental safety
|April 10, 2025
概括
氧 (CHX) 和化 (BEC) 是三桑的替代品. CHX影响斑马鱼的神经发育和运动输出,而BEC导致死亡,揭示了这些常见消毒剂的不同毒性概况.
科学领域:
- 环境毒理学环境毒理学
- 发育神经科学的发展神经科学.
- 斑马鱼模型生物模型生物
背景情况:
- 氧 (CHX) 和甲 (BEC) 在2016年禁止后,在个人护理产品中取代了三桑/三卡班.
- CHX和BEC都是世卫组织推的针对COVID-19的消毒剂.
- 对于CHX和BEC存在有限的神经毒性数据,需要进一步调查.
研究的目的:
- 确定斑马鱼胚胎发生过程中CHX和BEC暴露对神经发育的影响.
- 为了比较这些三桑替代化合物的独特毒性机制.
主要方法:
- 使用斑马鱼 (Danio rerio) 胚胎的静态暴露范式.
- 评估神经发育终点,包括运动输出,运动神经元和内部神经元形态,以及轴突路径.
- 对肌肉纤维发育缓慢和胚胎死亡率的评估影响.
主要成果:
- 暴露于CHX (1-5 mg/L) 改变了胚胎运动输出,运动神经元/内神经元细胞大小和轴突路径,但不增加死亡率.
- 暴露于CHX还影响了缓慢的肌肉纤维发育和初级运动神经元 (PMN) 和二级运动神经元 (SMN) 的轴突路径.
- BEC暴露 (1-5 mg/L) 改变了运动输出,脊柱内部神经元发育,肌肉纤维缓慢,但没有轴突路径.
- 5毫克/升的BEC在斑马鱼胚胎中引起显著的死亡率 (近100%).
结论:
- CHX和BEC表现出明显不同的毒性概况.
- CHX对神经发育和运动功能构成风险,可能是通过改变神经活动和肌肉发育.
- 与CHX.相比,BEC表现出更高的急性毒性,在测试度下导致致命性,这表明与CHX.相比有不同的机制.
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