Related Experiment Video
Updated: Apr 4, 2026

Injections of Lipopolysaccharide into Mice to Mimic Entrance of Microbial-derived Products After Intestinal Barrier Breach
Published on: May 2, 2018
Intestinal microbiota and ulcerative colitis.
Toshifumi Ohkusa1, Shigeo Koido1
1Department of Gastroenterology and Hepatology, The Jikei University Kashiwa Hospital, Japan.
The human gut microbiota is crucial for health, but certain bacteria can cause inflammatory bowel diseases (IBD) like ulcerative colitis (UC). Understanding these interactions may lead to new antibiotic treatments for IBD.
Area of Science:
- Microbiology
- Immunology
- Gastroenterology
Background:
- The human gut harbors a complex microbiota essential for host health.
- This microbiota aids nutrition and regulates immune homeostasis.
- Dysbiosis and specific bacterial strains are implicated in inflammatory bowel diseases (IBD), including ulcerative colitis (UC) and Crohn's disease (CD).
Purpose of the Study:
- To review the role of the intestinal microbiota in innate immunity and the pathogenesis of UC.
- To explore potential new antibiotic therapies targeting the gut microbiota for IBD treatment.
Main Methods:
- Literature review of existing studies on gut microbiota, innate immunity, and IBD.
- Analysis of the relationship between specific bacterial strains and intestinal inflammation.
- Discussion of current and emerging antibiotic strategies.
Main Results:
- The intestinal microbiota plays a significant role in maintaining innate immunity.
- Specific bacterial interactions contribute to the etiology and pathogenesis of UC.
- Targeting the gut microbiota presents a promising therapeutic avenue for IBD.
Conclusions:
- Modulating the intestinal microbiota is key to managing UC and other IBDs.
- Further research into host-microbiota interactions can reveal novel therapeutic targets.
- Antibiotic therapies directed at the gut microbiota show potential for treating IBD.
More Related Videos
Related Concept Videos
Microbiota of the Stomach and Small Intestine
Microbiota of the Large Intestine
Functions of the Gut Microbiota
Inflammatory Bowel Disease I: Ulcerative Colitis
Inflammatory bowel disease, or IBD, encompasses a group of disorders characterized by chronic inflammation or ulceration of the gastrointestinal tract.
Risk Factors
The exact cause of IBD remains unclear, although it is believed to be due to a mix of genetic, environmental, microbial, and immune factors. Genetic factors are significant in determining susceptibility to IBD, with family history being a critical risk factor. Individuals with a first-degree relative who has IBD are at...
Irritable Bowel Syndrome I: Introduction
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
Bacterial Flora of the Large Intestine
The normal gut flora of the colon plays a critical role in generating essential vitamins such as vitamins K, B5, and B7.

