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相关实验视频

Updated: Jul 28, 2025

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聚乙烯纳米塑料降低营养积累,扰乱性激素,并抑制青少年Macrobrachium nipponense的生殖发育.

Yiming Li1, Yucong Ye2, Na Rihan2

  • 1Fishery Machinery and Instrument Research Institute, Chinese Academy of Fisheries Sciences, Shanghai 200092, China.

The Science of the total environment
|May 31, 2023
PubMed
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纳米塑料对甲动物的繁殖有害. 对纳米塑料的暴露减少了东方河的营养素和抑制了生殖腺发育,影响了激素水平和基因表达.

科学领域:

  • 环境毒理学环境毒理学
  • 海洋生物学 海洋生物学
  • 甲动物生殖生物学 甲动物生殖生物学

背景情况:

  • 纳米塑料污染是一个日益严重的环境问题.
  • 关于纳米塑料对甲动物生殖腺发育的影响的研究有限.
  • 东方河 (Macrobrachium nipponense) 是一个相关的模型生物.

研究的目的:

  • 为了研究聚乙烯纳米塑料对青少年Macrobrachium nipponense. gonadal发展的影响.
  • 分析营养成分的变化,性激素水平和与生殖腺发育相关的基因表达.

主要方法:

  • 年轻的被暴露在不同度的75nm聚烯纳米塑料中,持续了28天.
  • 分析了营养成分 (原脂,原蛋白,灰,水分) 的组成.
  • 测量了血清性激素水平 (雌激素,孕,).
  • 确定了MEK,ERK和生殖腺发育相关基因 (Vitellogenin,Vitellogenin受体,Cyclin B,Gametocyte特定因子1,Vasa,PL10) 的基因表达.

主要成果:

  • 粗脂和蛋白质含量随着纳米塑料度的增加而下降.
  • 性激素水平和与生殖腺发育相关的基因表达 (包括MEK和ERK) 最初增加,然后随着纳米塑料度的上升而下降.
关键词:
基因表达 基因表达 基因表达发生性腺发展发展.马克罗布拉基乌尼波尼尼尼斯纳米塑料的纳米塑料

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  • 没有观察到灰或水分含量的显著变化.

    • 结论:

    • 聚乙烯纳米塑料对幼的营养积累产生负面影响.
    • 纳米塑料暴露通过破坏激素水平和基因表达来抑制淋巴腺发育.
    • 这些发现提供了关于甲类动物中纳米塑料毒性的关键数据,对其他水生无脊椎动物有影响.