环境内分泌干扰化学物质-DEHP暴露引起的生物毒性,通过多omics技术在哺乳小鼠中的微生物群-肠-乳腺轴
Xiaolong Xu1, Yonglong He1, Zefang Cheng1
1College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, PR China.
Environment international
|November 10, 2024
概括
暴露于二二甲基甲酸盐 (DEHP) 会扰乱小鼠的肠-乳腺轴,影响微生物多样性和乳腺健康. 这种内分泌干扰物会引起炎症和细胞损伤,突出显示人类和动物健康的风险.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 微生物学 微生物学
背景情况:
- 塑料含有二二甲基甲酸 (DEHP),是一种常见的内分泌干扰物.
- 暴露于DEHP对哺乳动物健康构成风险,特别是影响乳腺发育.
研究的目的:
- 通过使用多omics技术,研究DEHP对微生物-肠-乳腺轴的影响.
- 在哺乳小鼠中确定DEHP引起的毒性背后的分子机制.
主要方法:
- 小鼠被暴露在不同剂量的DEHP中.
- 多omics分析包括16S测序,代谢学和基因表达造型.
- 评估了乳腺组织和结肠炎症.
主要成果:
- DEHP改变了肠道微生物的多样性,增加了乳杆菌和减少了蛋白质细菌.
- 代谢分析显示了血液代谢物的变化,包括高GMP和腺5'-单酸盐.
- 观察到乳腺组织损伤,抑制ERK1/2酸化和诱导亡和铁亡.
结论:
- DEHP破坏了肠乳轴,导致炎症和细胞损伤.
- 研究结果表明,DEHP对人类和动物的毒性具有潜在的治疗点.
- 了解DEHP的不良影响对于公共卫生和乳制品牲畜管理至关重要.
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