Related Experiment Video
Updated: Jan 4, 2026
06:23
Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota
Published on: February 15, 2019
14.7K
Aging progression of human gut microbiota
Congmin Xu1,2, Huaiqiu Zhu1, Peng Qiu3
1Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China.
BMC Microbiology
|October 30, 2019
Summary
The human gut microbiota undergoes a continuous aging process, mirroring host aging. This study identifies key bacterial genera associated with aging, offering insights for health interventions in older adults.
Area of Science:
- Microbiology
- Gerontology
- Bioinformatics
Background:
- Human gut microbiota is crucial for health, influenced by genetics, diet, and environment.
- Gut microbiota diversity changes with age, but previous studies often used supervised methods.
- This research explores age-related gut microbial changes from an unsupervised viewpoint.
Purpose of the Study:
- To investigate the aging progression of the human gut microbial community.
- To identify specific bacterial genera associated with host aging.
- To provide an unsupervised perspective on age-related gut microbiota shifts.
Main Methods:
- Utilized 16S rRNA sequencing data from newborns to centenarians.
- Applied an unsupervised algorithm to analyze microbial community progression.
- Identified bacterial genera linked to the aging process without prior age information.
Main Results:
- Revealed a continuous aging progression in the gut microbiota aligned with host aging.
- Identified specific bacterial genera associated with this aging trajectory.
- Observed a decrease in beneficial bacteria and an increase in inflammation/cancer-related bacteria in older individuals.
Conclusions:
- Multivariate unsupervised analysis confirmed a continuous gut microbiota aging process.
- Identified genera are valuable for developing probiotics to promote a 'younger' gut microbiota.
- These findings may positively impact the health of aging populations.
Related Concept Videos
01:29Bacterial Flora of the Large Intestine
1.5K
The gut microbiome is formed by a vast and diverse community of bacteria that colonizes our large intestine. These bacteria start residing in the gut from birth and continue diversifying throughout life, influenced by factors such as diet, lifestyle, and stress. The gut bacterial community also includes bacteria from food and those that enter the colon through the anus.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.
1.5K
01:23Anatomy of the Intestines
86.4K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
86.4K
01:50What is Monogastric Digestion?
74.8K
The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
74.8K