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Subject:
From:
Annelies Bon <[log in to unmask]>
Reply To:
Lactation Information and Discussion <[log in to unmask]>
Date:
Mon, 11 Jun 2001 11:43:55 +0200
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Sandra wrote an excellent ovetveiw of the current research ion this. she worte:

> I usually conclude by saying that the goodness of breast
> milk has been compromised by the presence of chemical contaminants,
> and even though, thus compromised, it still does not injure babies as
> severely as formula does, we shouldn't wait until breast milk is as
> dangerous to infants as formula before taking action.

and:

> Therefore, the best we can do is to compare babies who
> receive breast milk that less contaminated than average with babies
> that receive breast milk that is more contaminated than average.  The
> Dutch have done this.  Their findings show subtle but measurable
> differences:  babies whose mothers have less contaminated milk
> perform better on certain tests of infant development that babies
> whose mothers' milk is in the higher percentiles of contamination.

I think you refer to the Koopman/Lanting/Patandin studies.. "Effects of
Polychlorinated Biphenyl/Dioxin Exposure and Feeding Type on Infants' Mental and
Psychomotor Development by Corine Koopman-Esseboom, MD, PhD; Nynke
Weisglas-Kuperus, MD, PhD; Maria A.J. de Ridder; Cornelis G. van de Paauw; Louis
G.M.Th. Tuinstra, MSc; Pieter J.J.Sauer, MD, PhD. Pediatrics Vol.97 No.5 May
1996."

They found that the babies who received the breastmilk with highest dose of
dioxins, fell back to the level of formulafed babies of 7 months in psychomotor
scores.

In the subsequent studies of the same data they found no influences anymore of
lactational exposure. Instead the in utero exposere does cause the most problems.
Eg the 2000 articles on the same project says: "Despite a higher PCB exposures
from breast milk we found at 18 months, 42 months of age, and at 6 years of age a
beneficial effect of breast feeding on the quality of movements, in terms of
fluency, and on the cognitive development tests." "Human breast milk volume and
fat content is adversely affected by the presently encountered PCB levels in W.
Europe. Our studies showed evidence that breast feeding counteracts the adverse
developmental effects of PCBs and dioxins."

Environmental exposure to polychlorinated biphenyls (PCBs) and dioxins.
Consequences for longterm neurological and cognitive development of the child
lactation. Boersma ER, Lanting CI . Adv Exp Med Biol 2000;478:271-87.

regards,

Annelies Bon
Toxins in human milk: www.borstvoeding.com/abon/bf_toxins.html

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