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在嘴鱼中发生的生物化学和分子破坏是由于同时暴露于lambda-cyhalothrin和difenoconazole而引起的
Dou Wang1, Xuehua An1, Ping Lu2
1State Key Laboratory for Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang 310021, China.
Ecotoxicology and environmental safety
|November 18, 2025
概括
研究了lambda-cyhalothrin和difenoconazole农药在鱼肝中的联合毒性. 同时暴露显著增加了氧化应激和改变了基因表达,突出了对水生生态系统的协同有害影响.
科学领域:
- 环境毒理学环境毒理学
- 水生生态毒理学 水生生态毒理学
- 农业化学影响评估
背景情况:
- 杀虫剂是影响水生生物的重要水生有毒物质.
- 在水体中,Lambda-cyhalothrin (LDC) 和difenoconazole (DFC) 经常被共同检测到.
- 对于LDC和DFC对鱼类的联合毒性影响仍然不太清楚.
研究的目的:
- 评估LDC和DFC同时暴露对嘴鱼 (Opsariichthys bidens) 肝脏组织的毒性影响.
- 研究这些农药的关节毒性背后的生物化学和分子机制.
主要方法:
- 对Opsariichthys bidens进行了为期30天的共同暴露实验.
- 生物化学试验被用来测量酶 (CAT) 和酶-3 (CASP-3) 的活性.
- 对erβ1,socs3a和cxcl-c1c进行了基因表达分析.
主要成果:
- 无论是LDC和DFC暴露,单独或联合,都增加了CAT和CASP-3活动.
- 联合暴露显示了酶活性更明显的增加,表明氧化应激增强和线粒体功能障碍.
- 农药暴露改变了基因表达,联合暴露具有更实质性的影响,表明免疫毒性和内分泌干扰作用.
结论:
- LDC和DFC之间的协同作用加剧了鱼肝毒性.
- 同时暴露会导致氧化损伤,线粒体功能障碍和免疫失调.
- 调查结果为农药管理的监管准则提供了信息,以减轻环境影响.
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