暴露于的多代效应揭示了第二代丸失调更强的丸失调
Audrey Legendre1, Céline Gloaguen1, Dimitri Kereselidze1
1Autorité de Sûreté Nucléaire et de Radioprotection (ASNR), PSE-SANTE/SESANE/LRTOX, PSE-SANTE/SERAMED/LRACC, USNR/SEARCH, F-92260 Fontenay-aux-Roses, France.
Current research in toxicology
|February 2, 2026
概括
长期暴露于会在几代人间损害雄性大鼠的生育能力,在F2世代观察到对丸功能和维生素D代谢的显著影响. 这凸显了潜在的多代毒性风险.
科学领域:
- 环境毒理学环境毒理学
- 生殖毒理学 生殖毒理学
- 遗传学和基因组学 遗传学和基因组学
背景情况:
- 不孕症是与环境污染物相关的日益严重的公共卫生问题.
- 是一种放射性重金属,是环境污染物,可能对生育能力产生不利影响.
研究的目的:
- 在雄性大鼠中评估慢性,非毒性暴露的多代生殖毒性.
- 研究对三代 (F0,F1,F2) 精子生成,类固醇生成和丸恒温的影响.
主要方法:
- 鼠 (F0) 长期暴露在饮用水中的非毒性溶液 (40 mg/L) 中.
- 对精子生成,类固醇生成,氧化应激,炎症,亡和维生素D代谢的评估影响.
- 评估了三代 (F0,F1,F2) 的生殖参数.
主要成果:
- 在所有世代中,暴露对类固醇生成和垂体激素 (,雌激素,LH,FSH) 的调节失调.
- 丸形态和组织学在F1和F2世代发生了变化.
- 精子生成受损,基因表达发生变化 (TH2B,eppin) 和维生素D代谢中断,在F2代观察到.
结论:
- 长期暴露于可以损害男性丸功能,其影响在随后的几代人中变得更加明显.
- 这些发现表明的潜在多代毒性.
- 需要进一步的研究来了解对人类生殖健康的影响.
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