基于人口的代谢学与计算微生物组建模型的整合确定了甲醇作为保护性饮食-微生物组-宿主相互作用的尿路生物标志物
Kristin Klier1, Ameneh Mehrjerd1, Daniel Fässler1
1Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17489 Greifswald, Germany. kristin.klier@med.uni-greifswald.de.
Food & function
|August 26, 2025
概括
尿中甲醇是植物性饮食的标志物, 微生物质降解与较低的死亡率有关. 这一发现凸显了甲醇作为有益的饮食微生物群相互作用的潜在生物标志物.
科学领域:
- 人类微生物组研究
- 代谢学
- 营养科学
背景情况:
- 饮食与微生物群的相互作用对健康至关重要, 但缺乏特定的生物标志物.
- 细菌纤维降解途径显著影响这些相互作用.
- 了解这些途径需要识别新的生物标志物.
研究的目的:
- 确定反映饮食微生物群相互作用的生物标志物.
- 研究肠道微生物组在饮食成分中产生甲醇的作用.
- 评估尿中甲醇与所有死因之间的关联.
主要方法:
- 在人口数据上使用了全代谢组查和机器学习 (SHIP-START-0,n=4017).
- 结合食物频率问卷数据与向性尿液核磁共振 (NMR) 代谢物.
- 使用基于约束的微生物群体建模和前性生存分析.
主要成果:
- 尿中甲醇被确定为与植物性食物摄入相关的关键代谢物.
- 肠道微生物群,特别是 Bacteroides 和 Faecalibacterium,通过点降解产生甲醇.
- 更高的微生物甲醇生产能力与微生物群多样性的增加相关.
- 尿中甲醇水平升高与全因死亡率降低有关.
结论:
- 尿中的甲醇作为保护性饮食微生物群相互作用的有希望的生物标志物.
- 微生物的降解是导致尿中甲醇水平的关键途径.
- 这项研究结合了代谢学和微生物组建模型来揭示与健康相关的生物标志物.
更多相关视频
07:15An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
Published on: July 31, 2019
9.7K
09:52A Clinical Metaproteomics Workflow Implemented within Galaxy Bioinformatics Platform to Analyze Host-Microbiome Interactions Underlying Human Disease
Published on: January 10, 2025
726
相关概念视频
Microbes and Methanogenesis
64
Methanogenesis is a critical microbial process in anaerobic ecosystems responsible for the biological production of methane, a potent greenhouse gas and valuable biofuel. This metabolic pathway is primarily facilitated by methanogenic archaea, which thrive in anoxic environments such as wetlands, sediments, and animal gastrointestinal tracts. The absence of oxygen in these habitats prevents aerobic respiration, thereby favoring alternative biochemical pathways for organic matter degradation.In...
64
Microbial Biosensors
62
Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
62
Microbiota of the Urogenital Tract
49
The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...
49
