在Caenorhabditis elegans中,Phoxim诱导神经毒性和肠道损伤
Mengyuan Zhang1, Xin Zhao1, Hua Bai1
1Department of Public Health Kunming Medical University, Kunming, China.
Frontiers in pharmacology
|December 25, 2025
概括
暴露于Phoxim杀虫剂会损害Caenorhabditis elegans,减少神经元的完整性,并通过抑制自而损害肠道. 这项研究揭示了phoximxim的存在.
科学领域:
- 毒理学 毒理学 毒理学
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
背景情况:
- 福西姆是一种有机杀虫剂,以其高效率和低毒性而闻名.
- 它的机制涉及抑制胆酶活性,破坏昆虫的神经功能.
研究的目的:
- 研究素暴露对Caenorhabditis elegans的生存,神经功能和肠道完整性的影响.
- 阐明毒性背后的细胞机制,特别是它对自的影响.
主要方法:
- 对C. elegans暴露于不同度的狐 (0.5,1和2.5微克/毫升).
- 使用光显微镜和染色,评估生存率,神经功能 (多巴胺基神经元完整性,Aβ诱导的) 和肠道完整性.
- 对与自相关的基因表达 (qPCR) 和RNA干扰 (RNAi) 的分析,以确认途径的参与.
主要成果:
- 在C. elegans中,Phoxim显著增加了死亡率,并减少了多巴胺能神经过程.
- 暴露加快了胺β诱导的,并导致显著的肠损伤,包括减少肠细胞数量.
- 福西姆抑制了自,通过自囊泡的减少和关键的自相关基因的下调来证明.
结论:
- 暴露于Phoxim会对C. elegans的生存和神经功能产生负面影响.
- 肠道损伤和与foxim抑制自途径有关.
- 这些发现突显了FOXIM除了其预期的杀虫作用之外的潜在毒性.
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