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Updated: Feb 18, 2026

Quantitative Polymerase Chain Reaction-based Analyses of Murine Intestinal Microbiota After Oral Antibiotic Treatment
Published on: November 17, 2018
[Effects of antibiotics on intestinal microflora and intestinal mucosal barrier function and its mechanisms]
Yue Han1, Yuxin Leng, Gaiqi Yao
1Department of Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China. Corresponding author: Yao Gaiqi,
Abstract:
Antibiotics are the cornerstone to cure infectious diseases, however, it also destroys the intestinal inherent microflora, and may cause serious gastrointestinal dysfunction, such as abdominal distension, diarrhea, mucosal barrier damage etc. In severe conditions, it may induce intestinal sepsis. With the development of the human microbiology group program and the popularity of microbial sequencing technology, people can comprehend the effects of antibiotics on intestinal flora deeply, meanwhile the traditional biomedical model (the basis of bacterial disease) is questioned. It presents the effects and mechanisms of antibiotics on intestinal microflora and intestinal mucosal barrier function in detail and demonstrates the feasibility by the treatment of probiotics and fecal transplantation to construct "health-promoting microbes" to adjust gastrointestinal function, in addition, it can promote the rational use of antibiotics.
Insights
Antibiotics harm gut microbes, causing dysfunction and damage. Probiotics and fecal transplants can restore intestinal health by promoting beneficial bacteria, supporting rational antibiotic use.
Area of Science:
- Microbiology
- Gastroenterology
- Pharmacology
Background:
- Antibiotics are crucial for infectious diseases but disrupt intestinal microflora, leading to gastrointestinal issues like diarrhea and mucosal damage.
- Severe antibiotic-induced disruption can progress to intestinal sepsis, highlighting the need for understanding these effects.
- Advancements in microbial sequencing and the Human Microbiome Project offer deeper insights into antibiotic impacts on gut flora.
Purpose of the Study:
- To detail the effects and mechanisms of antibiotics on intestinal microflora and mucosal barrier function.
- To explore therapeutic strategies for mitigating antibiotic-induced gut dysbiosis.
- To promote the rational application of antibiotics in clinical practice.
Main Methods:
- Review and analysis of existing research on antibiotic effects on the gut microbiome.
- Examination of the impact on intestinal mucosal barrier integrity.
- Evaluation of probiotics and fecal microbiota transplantation as therapeutic interventions.
Main Results:
- Antibiotics significantly alter the composition and function of the intestinal microflora.
- Damage to the intestinal mucosal barrier is a common consequence of antibiotic treatment.
- Probiotics and fecal transplantation show promise in restoring gut microbial balance and barrier function.
Conclusions:
- Antibiotic-induced gut dysbiosis poses significant health risks, necessitating interventions.
- Restoring a healthy gut microbiome through strategies like probiotics and fecal transplantation is feasible.
- These findings support the rational use of antibiotics and the development of microbiome-targeted therapies.
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