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2,2',4,4'-四乙烯 (BDE-47) 暴露对青少年后代生殖发育的影响

Wei Tan¹, Kusheng Wu¹, Chenran Shao²

¹Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, China.

Toxicology and applied pharmacology

|September 1, 2025

概括

围产期暴露于2,2

科学领域:

环境毒理学
生殖毒理学
发展毒理学

背景情况:

聚二乙烯 (PBDE) 是已知的破坏神经内分泌功能的环境污染物.
经过围产期的PBDE暴露后的长期生殖毒性尚不清楚.
2,2',4,4'-四二乙烯 (BDE-47) 是一种常见的PBDE同源.

研究的目的:

在小鼠中研究 BDE-47 产周暴露的长期生殖毒性.
评估对青少年后代生殖发育和激素平衡的影响.
检查母体和后代性腺组织的结构和功能变化.

主要方法:

在产前期 (怀孕13. 5天至产后7天) 暴露于BDE-47的小鼠.
生殖腺组织的组织学检查 (H&E染色).
用于生殖激素分析的ELISA (E2,LH,FSH,AMH,T).
在男性后代的丸中进行多重免疫组织化学 (mIHC) 染色.

主要成果:

母性小鼠的卵细胞数量和黄体变化,子宫内膜厚度增加和E2升高.
雌性后代表现出二次卵细胞和黄体的增加,E2的升高和AMH的降低.
男子后代表现出丸结构异常,精子含量降低,丸激素降低和类固醇酶表达受损 (Cyp11a1, StAR).

结论:

围产期BDE-47暴露会对母鼠和后代产生显著的生殖毒性.
观察到的副作用包括性腺组织结构障碍和荷尔蒙失衡.
这些发现表明潜在的长期生殖健康风险和降低类固醇激素的合成.

关键词:

BDE-47 其他周产期暴露聚乙烯乙青春期生殖发展

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