晨间信号Morning Signal
《科学》 第391卷 第6782期 · 2026年1月15日 · 中文解读

慢性低剂量毒死蜱暴露通过加速衰老缩短野生鱼类的寿命

Chronic low-dose exposure to chlorpyrifos reduces life span in a wild fish by accelerating aging · K. Huang et al.
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这篇讲什么
该研究通过野外调查和实验室实验,发现慢性低剂量毒死蜱暴露会加速野生鱼类(翘嘴鲌)的生理衰老,缩短其寿命并导致种群年龄结构截断。
原文开头
Kai Huang1, Zihan Zhang2, Guixin Han2, Ren Kong1, Haiyu Qin1, Hui Zhang3, Robert J. Letcher4, Wenhui Qiu5, Chunsheng Liu1*, Jianbo Shi1,6, Jason R. Rohr7 Low concentrations of chemicals are widespread in the environment, but exploration of the effects of their chronic exposures on animal life span in the wild is limited. Field investigations showed that fish populations of lake skygazer (Culter dabryi) with chronic low-dose chlorpyrifos loads had shortened telomeres and truncated age structures. Laboratory experiments confirmed that chronic low-dose chlorpyrifos exposure induced telomere degradation and reduced survival in a dose- and physiological age–dependent manner, whereas acute high-dose exposure did not. …
摘自《科学》(Science)第391卷 第6782期 · 2026年1月15日,K. Huang et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
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