What question did this study set out to answer?

The aim is to evaluate how polychlorinated and polybrominated biphenyls transfer from maternal serum to cord blood and milk.

The transfer of polychlorinated biphenyls (PCBs) and polybrominated biphenyls (PBBs) across the human placenta and into maternal milk.

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This randomized trial examines the transfer of PCBs and PBBs from maternal serum to milk and cord serum, suggesting potential risks for infants.

The aim is to evaluate how polychlorinated and polybrominated biphenyls transfer from maternal serum to cord blood and milk.
Examined cord serum and maternal milk levels of PCBs and PBBs.
Measured maternal serum levels and compared them to cord serum levels.
Analyzed correlations between maternal serum, cord serum, and milk levels.
Maternal serum levels were significantly higher than cord serum levels for both PCBs and PBBs.
Significant correlations were found for PCBs (r = .42) and PBBs (r = .81) from maternal to cord serum.
Similar correlations were observed between maternal serum and milk levels, indicating strong placental transfer.

Jacobson et al. (1984) studied this question.

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This randomized trial examines the transfer of PCBs and PBBs from maternal serum to milk and cord serum, suggesting potential risks for infants.