Maternal Faecalibacterium Pathobionts and Low-Fiber Diets Synergize to Impact Offspring Health: Implications for Atopic Dermatitis

This study explores the effects of maternal Faecalibacterium pathobionts and low-fiber diets on offspring health, focusing on atopic dermatitis (AD) using a mouse model. Researchers found that Faecalibacterium strains from AD patients disrupted gut homeostasis in female mice, negatively impacting their offspring. A low-fiber diet worsened these effects, leading to severe systemic symptoms, including hair loss, in the offspring. The study involved 55-67 mice per group from 11 mother mice and highlighted that Faecalibacterium pathobionts, particularly F. longum strains, increased systemic inflammation and gut microbiota dysbiosis. These conditions compromised gut integrity and led to AD-like symptoms. The findings suggest that addressing pathogenic Faecalibacterium strains and dietary changes could help prevent AD, emphasizing the role of maternal gut health in offspring well-being.