探索Bifidobacterium物种群体和功能变异与人类肠道微生物组结构和婴儿期以外的健康状况
Ruben Ladeira1, Julien Tap1,2, Muriel Derrien1
1Advanced Health & Science, Danone Global Research & Innovation Center, Gif-sur-Yvette 91190, France.
Microbiome research reports
|December 4, 2023
概括
这项研究揭示了不同的成年肠道Bifidobacterium社区. 某些物种组合与更高的肠道微生物群多样性和有益细菌相关,这表明针对性益生菌用于改善肠道健康.
科学领域:
- 微生物组研究 微生物组研究
- 人类肠道生态人类肠道生态
- 细菌学 细菌学是一门学科.
背景情况:
- 双杆菌物种在婴儿肠道微生物群中至关重要,但在成年人中不太了解.
- 在成年人中Bifidobacterium物种分布和功能的变异性仍未得到充分研究.
- 以前的研究集中在婴儿或成年人的特定饮食干预.
研究的目的:
- 探索Bifidobacterium社区在成年人肠道中的生态分布.
- 研究Bifidobacterium物种的功能潜力及其与宿主健康的关联.
- 为了识别肠道微生物组内与Bifidobacterium相关的分区.
主要方法:
- 来自公共数据集的9515个人类肠道元基因组的分析.
- 基于Bifidobacterium物种丰富性的样本集群使用迪里克莱的多项混合物.
- 对2000多个Bifidobacterium转基因组组装基因组 (MAGs) 的功能分析与宿主数据联系在一起.
主要成果:
- 在成年肠道微生物群中确定了独特的Bifidobacterium驱动的分区.
- 与B. longum和B. adolescentis的分区与更高的肠道微生物群多样性和丁酸盐生产者有关,在健康个体中普遍存在.
- B. bifidum MAGs具有与菌体相关的基因,与下肠道微生物群多样性相关,并且在遗传上相似.
结论:
- 扩大对成人Bifidobacterium社区生态的理解,以及它与肠道微生物群组成和健康的联系.
- 这些发现支持基于内源性社区的微生物组调节的Bifidobacterium菌株的合理选择.
- 表明肠道微生物群的基因特异分层对于研究物种变异和健康关联是有价值的.
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