Changes of microbial and metabolome of the equine hindgut during oligofructose-induced laminitis.
Authors: Tuniyazi Maimaiti, He Junying, Guo Jian, Li Shuang, Zhang Naisheng, Hu Xiaoyu, Fu Yunhe
Journal: BMC veterinary research
Summary
# Editorial Summary: Equine Hindgut Microbiota and Metabolomics in Oligofructose-Induced Laminitis Whilst laminitis remains a significant clinical problem characterised by inflammatory changes at the laminar junction, the precise pathophysiological mechanisms driving disease development remain poorly understood. Maimaiti and colleagues used oligofructose challenge as an experimental model to examine shifts in hindgut microbial populations and metabolomic profiles in horses developing acute laminitis, combining 16S rRNA sequencing for bacterial identification with untargeted metabolomics analysis. The research revealed substantial dysbiosis following oligofructose administration, with marked alterations in microbial community structure and associated changes in fermentation by-products and other key metabolites that precede or accompany clinical laminar pathology. These findings suggest that hindgut dysbiosis and consequent metabolic derangements may represent a critical mechanistic link between dietary perturbation and the systemic inflammatory cascade culminating in laminitis. For practitioners managing laminitis cases, understanding this microbiota–metabolome–laminae axis reinforces the importance of gradual dietary transitions, selective use of prebiotics or probiotics where indicated, and recognition that hindgut health directly influences systemic inflammation and laminar integrity.
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Practical Takeaways
- •Dietary management to avoid sudden increases in fermentable carbohydrates (oligofructose, fructans) is critical for laminitis prevention, as these trigger harmful microbial shifts in the hindgut
- •Understanding the gut microbiota-laminitis link supports preventive strategies focused on hindgut health rather than treating clinical signs after lamination occurs
- •Horses with dysbiosis or metabolic imbalance may be at higher risk for laminitis; consider gradual diet changes and monitoring of hindgut health indicators
Key Findings
- •Oligofructose administration induces significant changes in equine hindgut microbiota composition during laminitis development
- •Metabolomic alterations occur in the hindgut during oligofructose-induced laminitis, reflecting dysbiosis and altered fermentation
- •Microbial and metabolic changes correlate with inflammation and pathological changes at the laminar junction