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Dysbiosis of the Gut Microbiota

Dysbiosis of the Gut Microbiota

The human gut microbiome includes a diverse array of microbial species, including beneficial commensals and opportunistic pathogens, which interact to support host health. These microbes contribute to essential functions such as nutrient metabolism, immune system modulation, and maintenance of intestinal barrier integrity. However, disruptions to this equilibrium—referred to as dysbiosis—can have widespread physiological consequences.Dysbiosis is often characterized by reduced microbial...

Functions of the Gut Microbiota

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...

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Related Experiment Video

Updated: May 29, 2026

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

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

Published on: June 30, 2021

The gut microbiota: challenging immunology.

Navkiran Gill¹, B Brett Finlay

¹Michael Smith Laboratories, The University of British Columbia, Vancouver, British Columbia, Canada.

Nature Reviews. Immunology

|August 27, 2011

Summary

The intestinal microbiota, once solely studied for gut health, now significantly impacts immunology. Researchers increasingly explore its role in immune system function and disease.

Area of Science:

Immunology
Microbiology
Gastroenterology

Background:

The intestinal microbiota has historically been investigated primarily within the context of gut infections and diseases.
Microbiological perspectives dominated early research on gut health.

Purpose of the Study:

To highlight the expanding recognition of the intestinal microbiota's influence beyond microbiology.
To underscore the growing need for immunological research to incorporate the microbiota's effects.

Main Methods:

Review of existing literature connecting microbiota and immunology.
Analysis of research trends shifting focus from microbiology to immunology.

Main Results:

The intestinal microbiota is now understood to have broad implications in immunology.

More Related Videos

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Published on: May 8, 2016

Related Experiment Videos

Last Updated: May 29, 2026

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

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

Published on: June 30, 2021

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes

Published on: May 8, 2016

A paradigm shift is occurring, compelling researchers to integrate microbiota studies into immunological research.

Conclusions:

The intestinal microbiota plays a crucial role in immune system regulation and function.
Future research must address the complex interactions between the gut microbiota and host immunity.