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Updated: Mar 28, 2026

A Method for Targeted 16S Sequencing of Human Milk Samples
Published on: March 23, 2018
Human Milk Bacterial and Glycosylation Patterns Differ by Delivery Mode
Marina Hoashi1, Lawrence Meche2, Lara K Mahal2
1Bioinformatics Program, New York University Tandon School of Engineering, New York, NY, USA Division of Translational Medicine, New York University School of Medicine, New York, NY, USA.
Delivery mode impacts human milk composition. Vaginally delivered mothers showed changes in milk bacteria and glycosylation over time, unlike C-section mothers, suggesting further research is needed for infant development.
Area of Science:
- Human lactation biology
- Microbiome research
- Infant development
Background:
- Maternal milk is vital for infant development during lactation.
- Infant oral microbiota differs based on delivery mode (vaginal vs. cesarean section).
- Oral-breast contact during lactation may influence milk composition.
Purpose of the Study:
- To investigate if delivery mode affects human milk composition.
- To analyze differences in milk bacterial abundance and glycosylation patterns based on delivery mode.
Main Methods:
- Cross-sectional study utilizing banked human milk samples.
- Analysis of bacterial abundance and glycosylation patterns in milk.
- Comparison of milk composition between mothers with different delivery modes.
Main Results:
- Changes in bacterial abundance and glycosylation patterns were observed in milk from vaginally delivered mothers.
- These changes were related to the time elapsed since delivery.
- No significant changes were found in milk from cesarean-section delivered mothers.
Conclusions:
- Delivery mode may influence the temporal dynamics of human milk microbial and glycosylation profiles.
- Further research is warranted to understand the long-term effects on infant development.
- Investigating the impact of delivery mode on milk composition is crucial for optimizing infant nutrition.
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