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过度补充维生素E:对卵巢生理学和生殖健康的影响
Farzaneh Rabiee1, Masoud Fattahi1, Mohammad Iranzad1
1Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran, acecr.ac.ir.
Oxidative medicine and cellular longevity
|January 26, 2026
概括
过多的维生素E摄入会通过破坏卵巢功能和降低怀孕率来损害女性的生育能力. 维生素E的最佳水平对生殖健康至关重要,而过量服用会对卵细胞质量和胚胎发育产生负面影响.
科学领域:
- 生殖生物学 生殖生物学
- 内分泌学 在内分泌学.
- 氧化压力研究研究 氧化压力研究
背景情况:
- 不孕症影响全球约17.5%的夫妇,受内在和外在因素的影响.
- 氧化应激和反应性氧物种 (ROS) 在伴生体功能和生殖结果中发挥着关键作用.
- 抗氧化剂 (AO) 补充正在作为治疗压力诱导不孕症的治疗策略进行探索.
研究的目的:
- 研究不同维生素E补充剂水平对女性生殖能力的影响.
- 在卵巢生理学和氧化应激的背景下阐明维生素E影响的分子通路.
主要方法:
- 给小鼠服用了三种不同剂量的维生素E:最佳剂量,过量剂量和严重过量剂量.
- 对照组没有接受补充剂或假装治疗 (水,橄油).
- 分析了生殖参数,卵细胞和胚胎发育,卵巢组织学和分子标记.
主要成果:
- 过量服用维生素E和严重过量服用显著降低了怀孕率, litter 尺寸和卵细胞发育能力.
- 在维生素E过量服用组中,胚胎细胞的形成和质量受到损害.
- 严重的过量剂量导致毛囊生成受损,子宫厚度降低,颗粒细胞氧化还原平衡改变 (ROS增加,GSH/GSSG比率升高) 和亡减少.
结论:
- 虽然最佳的维生素E促进生育,过量摄入会破坏卵巢氧化还原平衡,对生殖成功产生负面影响.
- 过量服用维生素E会对卵巢功能,卵细胞质量和胚胎发育产生不利影响.
- 精确的抗氧化剂管理对于减轻不孕症至关重要,强调需要进一步研究维生素E对卵巢生理学的分子作用.
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