Individualized microbiotas dictate the impact of dietary fiber on colitis sensitivity.
Microbiome
; 12(1): 5, 2024 Jan 05.
Article
en En
| MEDLINE
| ID: mdl-38178260
ABSTRACT
BACKGROUND:
The observation that the intestinal microbiota is central in the development of IBD suggests that dietary fiber, the microbiota's primary source of nourishment, could play a central role in these diseases. Accordingly, enriching diets with specific soluble fibers remodels microbiota and modulates colitis sensitivity. In humans, a recent study suggests that the microbiota of select IBD patients might influence the impacts they would experience upon fiber exposure. We sought here to define the extent to which individual microbiotas varied in their responsiveness to purified soluble fiber inulin and psyllium. Moreover, the extent to which such variance might impact proneness to colitis.RESULTS:
We observed a high level of inter-individual variation in microbiota responsiveness to fiber inulin and psyllium while microbiotas from select donors exhibited stark fiber-induced modulation in composition, pro-inflammatory potential, and metabolomic profile, others were only minimally impacted. Mice transplanted with fiber-sensitive microbiomes exhibited colitis highly modulated by soluble fiber consumption, while mice receiving fiber-resistant microbiotas displayed colitis severity irrespective of fiber exposure.CONCLUSION:
The extent to which select soluble fibers alter proneness to colitis is highly influenced by an individual's microbiota composition and further investigation of individual microbiota responsiveness toward specific dietary fiber could pave the way to personalized fiber-based intervention, both in IBD patients and healthy individuals. Video Abstract.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Psyllium
/
Enfermedades Inflamatorias del Intestino
/
Colitis
/
Microbioma Gastrointestinal
Tipo de estudio:
Diagnostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Microbiome
Año:
2024
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Reino Unido