ArticleFrontiers in microbiology2026
Distinct patterns and interactions of microbiota and short-chain fatty acids in breast milk and infant gut from rural and urban dyads.
Article in Frontiers in microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Breastfeeding is crucial for the development of infant gut microbiota and long-term health. The influence of geographical residency on the composition and interactions among milk and gut microbiota, their metabolites, including short-chain fatty acids (SCFAs), remains unclear. Methods: Infant stool (0-12 months) and breast milk samples (1-30 days postpartum) were collected from 69 dyads living in rural or urban Manitoba, including 10 mothers diagnosed as gestational diabetes, for microbiota and SCFA analyses using 16S rRNA sequencing or gas chromatography-mass spectrometry. Results: Infant gut microbiota maturity was significantly higher in rural infants during the early infancy (0-2 months) compared to urban infants, but urban infants surpassed their rural counterparts during late infancy (6-12 months). Mature milk from urban mothers contained higher levels of Discussion: The gut microbiota of rural infants showed unstable microbial succession, while urban infants displayed strong gut-gut continuity, suggesting stable maturation and potential health benefits. The results of the present study revealed distinct patterns and interactions of microbiota and SCFAs in breast milk and infants' stool from rural versus urban dyads.
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