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Plasma polychlorinated biphenyl levels in Dutch preschool children either breast-fed or formula-fed during infancy
S Patandin1, N Weisglas-Kuperus, M A de Ridder
1Department of Pediatrics, Erasmus University, Rotterdam, The Netherlands.
Insights
Breastfeeding significantly increases polychlorinated biphenyls (PCBs) levels in children, highlighting the importance of reducing maternal PCB exposure. This study investigated PCB transfer from mothers to children via lactation and in utero exposure.
Area of Science:
- Environmental Health
- Pediatric Toxicology
- Human Biomonitoring
Background:
- Polychlorinated biphenyls (PCBs) are persistent organic pollutants with potential adverse health effects.
- Exposure to PCBs can occur in utero and during lactation.
- Understanding PCB transfer pathways is crucial for child health risk assessment.
Purpose of the Study:
- To investigate the influence of lactational and in utero exposure to PCBs on plasma PCB levels in children.
- To compare PCB levels in breast-fed versus formula-fed children.
- To identify predictors of PCB levels in children.
Main Methods:
- Plasma PCB levels were measured in 173 children at 3.5 years of age.
- Children were categorized into breast-fed (n=91) and formula-fed (n=82) groups.
- Statistical analysis was used to identify predictors of PCB levels.
Main Results:
- Median plasma PCB levels were 3.6 times higher in breast-fed children (0.75 µg/L) compared to formula-fed children (0.21 µg/L).
- In breast-fed children, the duration of breastfeeding and PCB levels in breast milk were significant predictors of plasma PCB levels.
- In formula-fed children, maternal plasma PCB levels were significantly associated with their own PCB levels.
Conclusions:
- PCB levels in Dutch preschool children are associated with maternal PCB transfer.
- Strategies to reduce maternal PCB body burden are recommended to minimize child exposure.
- Reducing environmental PCB contamination is essential for protecting children's health.
Objectives:
This study examined the influence of lactational and in utero exposure to polychlorinated biphenyls (PCBs) on plasma PCB levels in children.
Methods:
Plasma PCB levels were measured in 173 children at 3.5 years, of whom 91 were breast-fed and 82 were formula-fed in infancy.
Results:
Median plasma PCB levels were 3.6 times higher in breast-fed children (0.75 microgram/L) than in their formula-fed peers (0.21 microgram/L). Breast-feeding period and breast-milk PCB levels were important predictors for PCB levels in the breast-fed group. For children in the formula-fed group, PCB levels were significantly related to their material plasma PCB levels.
Conclusions:
PCB levels in Dutch preschool children are related to transfer of maternal PCBs; therefore, strategies should be aimed at reducing maternal PCB body burden.
