根的高分辨率微生物变化,由IIB类型的微生物组限制部位相关DNA揭示
Josie Shizhen Zhang1, Yufeng Zhang1, Shi Huang1
1Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Hong Kong SAR, China.
Journal of dentistry
|December 27, 2025
概括
根性包括特定的细菌转移,而不仅仅是多样性变化. 高分辨率测序揭示了与健康地点相比,状根生物膜中的不同物种和代谢途径.
科学领域:
- 口腔微生物学 口腔微生物学
- 牙虫研究 牙虫研究
- 转基因组学是指转基因组学.
背景情况:
- 根是一种重要的口腔健康问题,特别是在老年人中.
- 了解与根相关的特定微生物群落对于制定有针对性的预防和治疗策略至关重要.
研究的目的:
- 通过使用高分辨率测序来描述根牙牙科生物膜的物种级微生物和功能变化.
- 为了比较口腔微生物群的病根表面与无病根表面在同一个人的口腔微生物群和健康对照.
主要方法:
- 使用的IIB类型限制站点关联微生物组DNA (2bRAD-M) 分析在上斑块样本上.
- 从患有活跃根腐烂的老年人和健康对照群中采集的样本,来自 (CC) 和无 (CH) 根表面,以及对照群的无 (HH) 根表面.
- 采用非参数测试来比较微生物多样性,物种丰富性和预测的功能途径.
主要成果:
- 两组之间没有发现总体微生物多样性的显著差异.
- 与对照组 (HH) 相比,患者中的 (CC) 和无 (CH) 根微生物群之间的微生物差异显著更大.
- 在各种地点观察到特定物种的丰度增加,包括Propionibacterium acidifaciens和Prevotella multisaccharivorax. 九个KEGG通路,主要与碳水化合物代谢有关,与根有关.
结论:
- 在个人牙层面上,牙和无牙的根表面之间的微生物群存在显著差异.
- 根 кариес的特点是特定微生物物种及其代谢功能的转变,而不是广泛的多样性变化.
- 牙水平的分辨率对于了解根的微生物病因至关重要.
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