Related Experiment Video
Updated: Jun 12, 2026
10:37
Perturbations of Circulating miRNAs in Irritable Bowel Syndrome Detected Using a Multiplexed High-throughput Gene Expression Platform
Published on: November 30, 2016
Bacteria, genetics and irritable bowel syndrome.
Orla F Craig1, Eamonn M M Quigley
1University College Cork, Cork, Ireland.
Expert Review of Gastroenterology & Hepatology
|June 10, 2010
Summary
Genetic factors influence the development of post-infectious irritable bowel syndrome (IBS) after gastroenteritis. Specific genes related to bacterial recognition and inflammation are linked to IBS onset.
Area of Science:
- Gastroenterology
- Immunogenetics
- Microbiome research
Background:
- Irritable Bowel Syndrome (IBS) pathogenesis is not fully understood.
- Post-infectious IBS can develop de novo after bacterial gastroenteritis.
- Family history suggests a potential genetic predisposition in IBS.
Discussion:
- This study investigated genetic factors contributing to post-infectious IBS following a large-scale waterborne gastroenteritis outbreak.
- Over a third of individuals exposed to the outbreak developed IBS.
- The research explored the interplay between microbial disturbances and host genetic susceptibility.
Key Insights:
- Identified significant gene associations with post-infectious IBS in Toll-like receptor 9, IL-6, and cadherin 1 regions.
- These genes are crucial for bacterial recognition, inflammatory responses, and maintaining epithelial integrity.
- Findings support the hypothesis linking IBS onset to microbiota dysbiosis and host immune responses.
Outlook:
- Further research into specific genetic variants may elucidate IBS etiology.
- Understanding genetic predispositions can inform targeted prevention or treatment strategies for post-infectious IBS.
- This study highlights the importance of host-microbe-gene interactions in gastrointestinal disorders.
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