高度的铁离子有助于铁死介导的丸损伤
Chaoying Liu1,2, Ye Wang1, Huili Xia1
1School of Biological and Food Processing Engineering, Huanghuai University, Zhumadian, 463000, Henan Province, China.
Biological trace element research
|May 21, 2024
概括
过度补充铁会诱导小鼠丸中的铁亡,对精子健康和男性生殖功能产生负面影响. 高铁含量会改变基因表达和器官系数,突出显示铁的含量.
科学领域:
- 生殖毒理学 生殖毒理学
- 细胞生物学 细胞生物学
- 环境健康 环境健康
背景情况:
- 铁对生物过程至关重要,但过载会导致毒性.
- 铁亡是一种受调节的细胞死亡途径,与各种病理有关.
- 了解铁对男性生殖毒性的作用对于公共卫生至关重要.
研究的目的:
- 为了研究过度补充铁对小鼠丸铁的影响.
- 阐明铁引起的男性生殖毒性的机制.
- 评估德费洛克萨明在缓解铁引起的丸损伤方面的潜力.
主要方法:
- 昆明小鼠被注射了不同度的铁.
- 评估了器官重量,精子参数 (密度,形) 和死亡率.
- 用HE染色和TEM检查了精子生成管中的病理和超结构变化.
- 分析了与铁死相关的标记物和血清生物化学指标的基因表达.
主要成果:
- 高度的铁抑制了小鼠的生长,减少了器官系数 (丸,心脏,肝脏),并增加了精子形和死亡率.
- 过度的铁负荷损害了精卵管结构,导致精子异常,并影响了免疫和血液凝固参数.
- 铁离子在丸组织中改变了与铁亡相关的基因表达,以剂量依赖的方式诱导铁亡.
- 德费洛克萨明显示出抑制铁亡的潜力,但也导致丸损伤,需要进一步调查.
结论:
- 过度补充铁对男性生殖系统产生不利影响,因为它会诱导铁亡并改变精子质量.
- 铁过载会通过涉及铁亡相关基因表达的机制影响丸结构和功能.
- 由于观察到的丸毒性,deferoxamine的治疗潜力需要进一步研究.
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