Dietary Patterns Promoting Inflammation Linked to E. coli Growth in Pediatric Crohn’s Disease
Overview
This study identifies a significant association between pro-inflammatory dietary patterns and increased Escherichia coli abundance and virulence in children with active Crohn’s disease (CD). A pro-inflammatory diet correlates with decreased microbial diversity and expansion of Proteobacteria, highlighting the diet-microbiome interplay in pediatric CD.
Background
Inflammatory bowel disease, including Crohn’s disease, involves an inappropriate immune response to altered gut microbiota influenced by genetic and environmental factors. Dietary patterns, particularly those resembling a Western diet, have been linked to increased risk and progression of CD, whereas Mediterranean diets appear protective. The Dietary Inflammatory Index (DII) is a tool used to assess the inflammatory potential of diet and its relationship with chronic diseases, including CD. This study explores how habitual diet inflammatory potential relates to the gut microbiome and metabolome in children with CD compared to healthy controls.
Data Highlights
Group
Number of Participants
Dietary Indices (mC-DII, HEI-2015, aMed)
Microbiome Findings
Children with Active CD
33
Pro-inflammatory diet with similar scores to controls
Decreased diversity, increased E. coli abundance and virulence, Proteobacteria expansion
Children with Quiescent CD
18
Similar dietary scores to active CD and controls
Less pronounced microbiome alterations
Healthy Controls
50
Similar mC-DII, HEI-2015, aMed scores to CD groups
Higher microbial diversity, lower E. coli abundance
Key Findings
Pro-inflammatory diets, assessed by mC-DII, are associated with increased Escherichia coli abundance and virulence in children with active Crohn’s disease.
Children with active CD consuming pro-inflammatory diets exhibit decreased gut microbial diversity and expansion of Proteobacteria phylum.
A low intake of fibers, vitamins, and minerals with anti-inflammatory properties correlates positively with E. coli relative abundance.
Metabolites related to fatty acid metabolism negatively associate with Healthy Eating Index scores, linking diet quality to metabolic profiles.
Dietary inflammatory potential is similar between children with CD and healthy controls, but its impact on microbiome composition is more pronounced in active disease.
Clinical Implications
These findings underscore the importance of dietary interventions targeting the inflammatory potential of habitual diet to modulate gut microbiota in pediatric Crohn’s disease. Optimizing intake of anti-inflammatory nutrients such as fibers, vitamins, and minerals may reduce E. coli expansion and virulence, potentially mitigating disease activity. Clinicians should consider integrating microbiome-targeted dietary strategies in managing pediatric CD.
Conclusion
A pro-inflammatory diet may exacerbate inflammation-associated dysbiosis in pediatric Crohn’s disease by promoting E. coli growth and virulence. Tailored dietary interventions enhancing anti-inflammatory nutrient intake could be pivotal in managing disease progression.
References
Original Article 2024 -- Dietary Patterns Promoting Inflammation Linked to Escherichia coli Growth and Virulence in Children with Crohn’s Disease
by Jessica Breton, Vincent Tu, Ceylan Tanes, Naomi Wilson, Ryan Quinn, Kelly Kachelries, Elliot S Friedman, Kyle Bittinger, Robert N Baldassano, Charlene Compher, Lindsey Albenberg
