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在老鼠中诱导的慢性鼻炎导致鼻微生物群的次要变化
Fernanda Barriga-Chambi1, Fabricio Ccami-Bernal1, Frank Zela-Coila1
1Laboratorio de Microbiología Molecular Facultad de Medicina, Universidad Nacional de San Agustín de Arequipa Arequipa Peru.
Laryngoscope investigative otolaryngology
|July 9, 2025
概括
鼠类的慢性炎症导致肠道微生物群的显著变化,增加了物种丰富度. 这些发现表明,炎症可能驱动微生物转移,而不是启动它们.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 微生物群在慢性鼻炎 (CRS) 病原发生中的作用正在研究中.
- 炎症是CRS的关键特征,但其与微生物变化的关系尚未完全理解.
研究的目的:
- 在大鼠模型中研究诱导慢性鼻炎对肠道微生物群组成的影响.
- 为了将诱导CRS的老鼠的微生物群与健康对照群进行比较.
主要方法:
- 维斯特鼠被分为CRS (n=8) 和对照 (n=8) 组.
- 通过Aspergillus oryzae蛋白酶和卵蛋白的鼻腔灌注诱导了CRS,持续了12周.
- 微生物群分析涉及培养,MALDI-TOF MS识别,相对丰度评估和物种丰富性计算 (Chao1指数). 组织病理学证实了炎症.
主要成果:
- 在CRS大鼠中,粘膜变化显著增加 (100%与25%相比,p=0.01).
- 微生物群分析显示,CRS大鼠中Firmicutes的丰富性增加 (60.3%与38.4%相比),Staphylococcus的增加.
- 在CRS组中,物种丰富度显著更高 (Chao1: 85.0对31.3,p=0.004).
结论:
- 诱导的慢性炎症显著改变了大鼠的微生物群组成.
- CRS与增加的微生物多样性和特定的细菌转移有关.
- 这些结果表明,炎症环境可能会导致CRS中的微生物群变化.
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