暴露于微塑料会影响日本的脂肪酸成分,取决于性别和颗粒大小

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Eliana McCann Smith¹, Zdenka Bartosova¹, Martin Wagner¹

¹Department of Biology, Norwegian University of Science and Technology (NTNU), Høgskoleringen 5, 7491 Trondheim, Norway.

The Science of the total environment

|December 4, 2023

概括

摄入微塑料 (MP) 通过改变脂质代谢,影响鸟类健康,影响因MP大小和鸟类性别而异. 这种干扰可能会影响关键的生命阶段,如雌鸟的迁徙和蛋生产.

科学领域:

环境毒理学环境毒理学
鸟类生理学鸟类生理学
生态毒理学生态毒理学

背景情况:

摄入塑料是鸟类种群日益关注的问题.
微塑料 (MP) 对鸟类脂质代谢的影响尚不清楚.
脂质对鸟类的健康至关重要,特别是在迁徙和蛋生产期间.

研究的目的:

为了研究摄入微塑料 (MP) 对日本 (Coturnix japonica) 脂质代谢的影响.
评估不同MP大小 (大,小,混合) 对脂质谱的影响.
为了确定潜在的性别特异性对MP暴露的反应.

主要方法:

一个星期的日本长口服接触600毫克的聚烯和聚乙烯MPs超过5周.
MPs被用成大 (3毫米),小 (<125微米) 或混合尺寸.
分析肝脏质量和脂质含量,包括脂肪酸成分.

主要成果:

暴露于小MP的女性显示肝脏质量增加.
暴露于MP改变了单不和脂肪酸水平,特别是在女性身上.
特定的脂肪酸 (油脂酸,棕酸,棕酸) 受到MP大小的影响,这表明 de novo 合成发生了改变.
证据表明MPs对脂质代谢的性别特异性敏感性和体型依赖的影响.

结论:

摄入微塑料显著影响鸟类脂质代谢,其取决于性别和大小.
改变脂肪酸概况可能会危及鸟类生命的关键阶段.
需要进一步的研究来阐明MP对鸟类脂质代谢影响的机制.

关键词:

鸟类鸟类鸟类鸟类暴露的实验实验暴露的实验.脂质代谢脂质代谢是一种塑料塑料的塑料的性差异性差异性差异性差异性差异性差异性差异性

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