聚乙烯可能会改变肠道微生物群和免疫系统的合作机制,通过与DCBQQ共同暴露
Jinhua Li1, Ting Liu1, Jun Wang1
1Department of Health Toxicology, School of Public Health, Jilin University, Changchun, Jilin, 130021, China.
Chemosphere
|August 16, 2023
概括
对聚乙烯 (PS) 和2,6-二-p-基 (DCBQ) 的联合暴露可能会损害免疫系统. 这项研究揭示了这种污染物组合如何影响小鼠的免疫反应和肠道健康.
科学领域:
- 环境科学 环境科学
- 毒理学 毒理学 毒理学
- 免疫学 免疫学 免疫学
背景情况:
- 聚钢 (PS) 和2,6-二-p-基 (DCBQ) 是常见的环境污染物.
- 对多种污染物的同时暴露可能比单个暴露带来更高的风险.
- 关于PS和DCBQ的联合毒理作用的研究有限.
研究的目的:
- 研究PS和DCBQ对小鼠免疫反应的联合作用.
- 了解与同时接触这两种污染物的潜在风险.
主要方法:
- 小鼠同时暴露于DCBQ和PS.
- 评估了免疫细胞活动,特别是脏CD4+T细胞.
- 对肠道进行了组织病理学评估,以确定炎症.
- 分析了肠道菌群组成的变化和与免疫相关的基因表达.
主要成果:
- 同时暴露于DCBQ和PS抑制了脏CD4+T细胞活性,并破坏了整体免疫功能.
- 组织病理学显示肠道中炎症细胞的存在增加.
- 这种组合改变了肠道微生物群,激活了肠道巨细胞,抑制了免疫基因表达,导致肠道炎症.
结论:
- 聚烯 (PS) 可能会破坏肠道微生物群与免疫系统的相互作用,当与2,6-二罗-p-基 (DCBQ) 共同暴露时.
- 对PS和DCBQ等环境污染物的联合暴露,由于潜在的协同作用的毒性作用,应更加注意.
- 这些发现凸显了对环境污染物的联合毒性进行进一步研究的需要.
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