Breastfeeding and early white matter development: A cross-sectional study

Area of Science:

• Neuroscience
• Developmental Biology
• Pediatrics

Background:

• Epidemiological studies suggest breastfeeding improves cognitive function.
• Brain imaging studies show increased gray and white matter volume in breastfed individuals.
• The timing of these structural differences in early development is not well understood.

Purpose of the Study:

• To investigate early brain structural differences in breastfed versus formula-fed children.
• To determine when developmental differences predicting later performance emerge.
• To examine the relationship between breastfeeding duration and white matter microstructure.

Main Methods:

• Used quiet magnetic resonance imaging (MRI) to scan 133 healthy children aged 10 months to 4 years.
• Compared white matter microstructure (myelin water fraction) in exclusively breastfed, exclusively formula-fed, and mixed-fed groups.
• Analyzed the correlation between breastfeeding duration and white matter development.

Main Results:

• Breastfed children demonstrated enhanced white matter development in frontal and association brain regions.
• A positive correlation was observed between breastfeeding duration and white matter microstructure.
• These findings align with improved cognitive and behavioral performance measures.

Conclusions:

• Breast milk constituents appear to promote healthy neural growth and white matter development.
• Early breastfeeding is associated with structural brain advantages detectable in young children.
• Findings offer new insights into the earliest developmental benefits of breastfeeding.