Journal
AMERICAN JOURNAL OF MEDICAL GENETICS PART B-NEUROPSYCHIATRIC GENETICS
Volume 189, Issue 7-8, Pages 285-292Publisher
WILEY
DOI: 10.1002/ajmg.b.32915
Keywords
child development; cognition; gastrointestinal microbiome
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Funding
- Deakin Dean's Postdoctoral Research Fellowship
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This study investigates the relationship between gut microbiota and cognitive development in children. The results show associations between gut microbiota characteristics and cognitive development in both cross-sectional and longitudinal observations. Additionally, bacterial diversity varies depending on the method of observation.
The relationship between the gut microbiota and brain function are receiving increasing research attention. Studies investigating gut microbiota and early childhood neurocognition are limited, particularly in longitudinal measurements. We examined cross-sectional relationships between gut microbiota of a cohort of otherwise healthy children using 16S rRNA sequencing and their cognitive development measured with Bayley's Scales of Infant Development III at 24 months of age (n = 43), and longitudinal relationships between gut microbiota composition at 12 months (n = 41) of age and neurodevelopment at 24 months of age. Associations between gut microbiota characteristics and cognitive development were observed both cross-sectionally and longitudinally, notably with butyrate producing bacteria among some children. Bacterial diversity varied between cross-sectional and longitudinal observations, where the gut microbiota community of children with lower cognitive scores had a trend toward higher alpha diversity, whereas, in the longitudinal observation, a trend toward reduced alpha diversity was observed. This study is limited by a small sample size and its exploratory nature. Yet, the study contributes to knowledge in the gut microbiota characteristics and early life neurodevelopment, a field of study which is underexplored, presenting opportunities for future larger specific studies.
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