肠道微生物组动力学和健康衰老中的功能转变:从一个元基因组研究的见解
Xu Ai1,2, Chenchen Huang1,2, Qiongrong Liu1,2
1Jingmen Central Hospital, Jingmen Central Hospital Affiliated to Jingchu University of Technology, Jingmen, Hubei, China.
Frontiers in microbiology
|October 6, 2025
概括
肠道微生物群的多样性随着年龄的增长而减少,但健康的老年人显示逆转. 特定的细菌如 Bacteroides stercoris 随着年龄的增长而下降,而其他细菌则与长寿和衰老途径有关.
科学领域:
- 微生物学 微生物学
- 老年学是指老年学的学科.
- 基因组学就是基因组学.
背景情况:
- 人口老龄化带来了社会挑战.
- 肠道微生物组对于宿主健康和衰老至关重要.
- 肠道微生物组的变化与衰老过程相关.
研究的目的:
- 分析健康老年人肠道微生物组的变化.
- 调查微生物组成和功能的与年龄相关的变化.
- 确定与健康衰老和长寿相关的微生物生物标志物.
主要方法:
- 从100名健康的老年人 (≥60岁) 获得肠道微生物组的元基因组测序.
- 分类为年轻人 (60-74岁),中年人 (75-89岁) 和长寿老人 (90-99岁) 组.
- 微生物物种和功能途径的分析,包括分类和物种识别.
主要成果:
- 肠道微生物群的多样性通常随着年龄的增长而减少,在健康的百岁老人中出现了显著的逆转.
- 肠道微生物物种及其功能变化之间存在显著的正相关性.
- 在年轻的老年人中,细菌杆菌的丰富,随着年龄的增长而下降.
- 特定物种的识别 (Collinsella bouchesdurhonensis,Prevotella stercorea) 在不同的年龄组中进行了丰富.
- 衰老路径 (例如,氧化酸化) 与特定微生物物种的关联.
结论:
- 在健康的衰老过程中,肠道微生物组的组成和功能发生了显著的变化.
- 特定的微生物转移可能表明健康的衰老轨迹.
- 研究结果为促进健康衰老的潜在微生态干预提供了洞察力.
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