Improving immune-related health outcomes post-cesarean birth with a gut microbiome-based program: A randomized...

Area of Science:

• Microbiome research
• Pediatric health
• Immunology

Background:

• Infants born via Cesarean section (C-section) exhibit distinct gut microbiome profiles and increased risks for atopic and immune-related conditions compared to vaginally delivered infants.
• Cesarean delivery is associated with altered gut microbial colonization, potentially impacting long-term immune system development.

Purpose of the Study:

• To evaluate the efficacy of a microbiome-based program in modulating the gut microbiome of C-section born infants.
• To assess the impact of the intervention on microbiome composition, a C-section index, and the prevalence of atopic conditions.

Main Methods:

• An open-label, randomized controlled trial involving 54 full-term C-section born infants (0-3 months).
• The intervention group (n=25) received microbiome reports, personalized recommendations, educational materials, and coaching for 6 months.
• The control group (n=29) received standard care. Health conditions were monitored via parental surveys.

Main Results:

• The intervention group showed increased Bifidobacterium abundance and enhanced human milk oligosaccharide degradation gene activity compared to controls.
• The C-section index in the intervention arm decreased to levels comparable to vaginally born infants.
• Atopic dermatitis prevalence was significantly lower in the intervention arm (OR, 0.17; P=.031).

Conclusions:

• A personalized, microbiome-focused intervention can effectively modulate the gut microbiome in infants born via C-section.
• This program shows potential in reducing the incidence of atopic conditions in this vulnerable population.
• Findings support the use of microbiome-based strategies to mitigate C-section-associated health risks.