在受污染的环境中,肠道健康和肠道微生物群之间的关联
Toni Jernfors1, Anton Lavrinienko2, Igor Vareniuk3
1Department of Biological and Environmental Science, University of Jyväskylä, FI-40014, Finland.
The Science of the total environment
|January 6, 2024
概括
污染地区的野生银行虫显示肠道细菌发生变化,肠道健康不佳,包括粘液层减弱. 这突显了环境污染对野生动物肠道健康和微生物群相互作用的影响.
科学领域:
- 生态毒理学 生态毒理学
- 微生物组研究 微生物组研究
- 野生动物健康 野生动物健康
背景情况:
- 肠道微生物群对动物健康至关重要,影响免疫力,消化和行为.
- 污染等环境压力因素会破坏肠道微生物群,可能会影响宿主健康.
- 肠道微生物群变化与野生动物宿主状况之间的联系尚未得到研究.
研究的目的:
- 调查环境污染 (特别是放射性核素) 对肠道微生物群和野生鱼健康的影响.
- 确定肠道微生物群组成的变化是否与污染环境中的宿主健康参数相关.
主要方法:
- 16S安普利康测序用于分析肠道微生物群组成.
- 转录学,结肠组织的组织学分析和短链脂肪酸量化以评估宿主肠道健康.
- 从受污染的环境和可能不受污染的环境中比较.
主要成果:
- 污染地区的动物表现出改变的肠道微生物群.
- 观察到肠道健康状况不佳的证据,包括杯状细胞的低和削弱的粘液层.
- 检测到与粘液产生相关的基因表达 (Clca1,Agr2) 的变化,但在结肠组织中没有发现明显的炎症.
结论:
- 环境污染,包括放射性核化物,显著影响野生银行的肠道微生物群和肠道健康.
- 污染暴露会导致肠道健康问题,如粘液生产受损,即使没有明显的炎症.
- 对肠道微生物群和宿主健康的综合研究对于了解对野生动物的生态毒理学影响至关重要.
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