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Related Concept Videos

Functions of the Gut Microbiota01:18

Functions of the Gut Microbiota

The gut microbiota includes trillions of microorganisms that colonize the human gastrointestinal tract, including bacteria, archaea, viruses, and fungi. This complex ecosystem plays a critical role in maintaining intestinal and systemic health. Most of these microbes inhabit the large intestine, establishing a relatively stable and diverse community that contributes to gut homeostasis through various metabolic, immunological, and protective mechanisms.Dominant bacterial phyla, such as...
Microbiota of the Stomach and Small Intestine01:27

Microbiota of the Stomach and Small Intestine

The human gastrointestinal (GI) tract is characterized by distinct physicochemical conditions that shape its microbial communities. Among these, the stomach presents a particularly challenging environment for microbial colonization due to its highly acidic pH, ranging from 1 to 3. This extreme acidity effectively limits microbial density. However, certain acid-tolerant microorganisms are capable of surviving in this niche. Notably, Helicobacter pylori can colonize the gastric mucosa,...
Physiology of Enteric Nervous System and Gut Health01:05

Physiology of Enteric Nervous System and Gut Health

The gastrointestinal tract, responsible for the digestion and absorption of nutrients, is safeguarded by the intestinal barrier, which consists of secretory, physical, and immune components. At the forefront is the secretory barrier, composed of essential elements such as mucus, gut microbiota, and defense proteins. They collaborate to break down food particles, facilitate nutrient absorption, and maintain optimal gut health. These secretory components ensure the smooth functioning of the...
Microbiota of the Large Intestine01:27

Microbiota of the Large Intestine

The large intestine hosts the most densely populated microbial ecosystem in the human body. This complex community primarily consists of anaerobic bacteria, with Bacillota (formerly Firmicutes) and Bacteroidota (formerly Bacteroidetes) as the predominant groups. The distribution of these microbes varies along different sections of the large intestine, influenced by local environmental factors such as oxygen availability and nutrient composition.The cecum, located at the beginning of the large...
Bacterial Flora of the Large Intestine01:29

Bacterial Flora of the Large Intestine

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.
Probiotics01:22

Probiotics

Probiotics are live, non-pathogenic microorganisms that confer health benefits by modulating the gut microbiota. The human gastrointestinal tract harbors a complex microbial ecosystem, and the balance of this microbiota is crucial for digestive and systemic health. Among the most extensively studied and utilized probiotics are species formerly classified within the genera Lactobacillus and Bifidobacterium. These organisms not only naturally colonize the human gut but are also consumed through...

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Related Experiment Video

Updated: May 21, 2026

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
05:27

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

Published on: June 30, 2021

Honor thy gut symbionts redux.

Jeffrey I Gordon1

  • 1Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St. Louis, MO 63108, USA. jgordon@wustl.edu

Science (New York, N.Y.)
|June 8, 2012
PubMed
Summary
This summary is machine-generated.

New tools reveal the gut microbiome

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Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota
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Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota

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Co-culture of Living Microbiome with Microengineered Human Intestinal Villi in a Gut-on-a-Chip Microfluidic Device

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Related Experiment Videos

Last Updated: May 21, 2026

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions
05:27

An Intestinal Gut Organ Culture System for Analyzing Host-Microbiota Interactions

Published on: June 30, 2021

Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota
06:23

Applying Advanced In Vitro Culturing Technology to Study the Human Gut Microbiota

Published on: February 15, 2019

Co-culture of Living Microbiome with Microengineered Human Intestinal Villi in a Gut-on-a-Chip Microfluidic Device
10:51

Co-culture of Living Microbiome with Microengineered Human Intestinal Villi in a Gut-on-a-Chip Microfluidic Device

Published on: August 30, 2016

Area of Science:

  • Microbiome research
  • Gut microbial communities
  • Human evolution

Background:

  • Gut microbial communities are integral to human health and development.
  • Advancements in research tools offer novel insights into the microbiome.
  • Understanding the microbiome is crucial for addressing health challenges.

Purpose of the Study:

  • To explore the impact of gut microbial communities on human evolution and physiology.
  • To investigate the role of the microbiome in postnatal development and individuality.
  • To delineate the influence of modern lifestyles on gut health.

Main Methods:

  • Utilizing advanced tools for exploring gut microbial communities.
  • Interdisciplinary approaches to microbiome research.
  • Investigating the connection between lifestyle and gut microbiome composition.

Main Results:

  • New tools enable revisiting fundamental questions in biology.
  • Development of new concepts in evolution, physiology, and health definitions.
  • Delineation of lifestyle impacts on the gut microbiome.

Conclusions:

  • Gut microbiome research is a rapidly advancing, interdisciplinary field.
  • This research holds potential for addressing global health issues.
  • Proactive discussions on societal implications are essential for scientific progress.