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Updated: Jun 11, 2025

Oral Biofilm Sampling for Microbiome Analysis in Healthy Children
Published on: December 31, 2017
Characteristics of gut flora in children who go to bed early versus late
Chunmei Mao1, Caiping Xi1, Rong Du1
1Department of Child Rehabilitation, Gansu Rehabilitation Center Hospital, Lanzhou, 15214075468, Gansu, China.
Insights
Children
Area of Science:
- Pediatric Health
- Microbiome Research
- Sleep Science
Background:
- Gut microbiota composition may influence various aspects of child development and health.
- Sleep patterns are crucial for children's well-being, but their relationship with the gut microbiome is not fully understood.
Purpose of the Study:
- To investigate differences in gut flora characteristics between healthy children with early versus late bedtime habits.
- To explore potential links between sleep timing and gut microbiome diversity and function.
Main Methods:
- Genome sequencing of gut flora from fecal samples of 88 healthy children (aged 2-14 years).
- Analysis of microbial diversity (alpha and beta diversity) and abundance at genus and species levels.
- Comparison of gut flora characteristics between early and late sleeper groups.
Main Results:
- Statistically significant differences in beta diversity at the genus level were observed between early and late sleepers (P=0.045).
- Alpha diversity indicators, including Simpson's and Shannon's indices, were significantly higher in the genus level for the study cohort (P=0.0011 and P=0.0013, respectively).
- Variations in species diversity, abundance, and metabolic pathways were noted between the groups.
Conclusions:
- Sleep timing in children is associated with distinct gut microbiome profiles.
- Observed differences in gut flora may offer targets for future interventions.
- Further research could explore pharmacological approaches to address sleep disorders by modulating the gut microbiome.
Abstract:
Investigating the characteristics of the gut flora in children who go to bed early versus late. The study sample consisted of 88 healthy children aged 2-14 years, with an equal number of boys and girls. The researchers collected faecal samples from all participants and sequenced the genome of their gut flora. Findings indicate that beta diversity was statistically significant at the genus level for both the early and late sleeper groups (P = 0.045). Furthermore, alpha diversity indicators, including Simpson's index (P = 0.0011) and Shannon's index (P = 0.0013), exhibited higher values at the genus level. The differences observed in terms of species diversity, abundance, and metabolic pathways offer potential avenues for implementing pharmacological interventions aimed at addressing sleep disorders in children.
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