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[Decrease of the intestinal microflora without consequences for the morphometry and topography of the distal ileum in
E Combe1, J C Meslin, B Gaillard
1INRA, laboratoire d'étude du métabolisme azoté, Ceyrat, France.
Annales De Recherches Veterinaires. Annals of Veterinary Research
|January 1, 1991
Summary
Antibiotic treatment significantly reduced fecal microflora in mice but did not impair the distal ileal epithelium structure. The intestinal wall and villi height remained unaffected by the altered microbial environment.
Area of Science:
- Gastroenterology
- Microbiology
- Histology
Context:
- The gut microbiome plays a crucial role in host physiology.
- Understanding the impact of antibiotics on the intestinal environment is vital.
Purpose:
- To investigate the effects of antibiotic-induced microflora depletion on the intestinal wall structure.
- To assess changes in the distal ileal epithelium of mice following a 33-day antibiotic treatment.
Summary:
- Conventional and germ-free mice were treated with antibiotics, leading to a significant decrease in fecal microbial populations.
- Scanning electron microscopy revealed no significant differences in ileal villus height or surface morphology between treated and control groups.
- While microbial composition and digestive contents changed, the distal ileal epithelial structure remained intact.
Impact:
- This study demonstrates the resilience of the intestinal epithelium to substantial microbial disruption.
- Findings suggest that the gut's structural integrity is maintained even with severe alterations in its symbiotic microflora.