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Environmental toxin Bisphenol A can affect newborn brain
Date:10/26/2011

Newborn mice that are exposed to Bisphenol A develop changes in their spontaneous behavior and evince poorer adaptation to new environments, as well hyperactivity as young adults. This has been shown by researchers at Uppsala University. Their study also revealed that one of the brain's most important signal systems, the cholinergic signal system, is affected by Bisphenol A and that the effect persisted into adulthood.

Our environment contains a number of pollutants, including Bisphenol A, which is used in plastics in a number of different applications. When plastic products are used, Bisphenol A can leak out, which is especially problematic as it is used in baby bottles, tin cans, plastic containers, plastic mugs, which are used by people of all ages. Both in Sweden and globally, Bisphenol A is widely used, and the substance has been found in human placentas, fetuses, and breast milk.

In recent years measurable amounts of Bisphenol have been found in dust from regular homes, but opinion differs regarding any negative effects of Bisphenol A, and risk assessments from various parts of the world present contradictory recommendations, even though the information used comes from the same research reports. Here in Sweden the Swedish Chemicals Agency and the Medical Products Agency are working on a ban for Bisphenol A in baby bottles and certain other plastic products.

In humans and mammals, the brain develops intensively during a limited period of time. In human babies, this brain development period runs from the seventh month of gestation through the first two years of life. The corresponding period for mice takes place during the 3-4 first weeks after birth. Uppsala researchers have shown in previous research studies that various toxic compounds can induce permanent damage to brain function when they are administered to newborn mice during this developmental period. Examples of such compounds are so-called brominated flame-retardants, p
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Contact: Henrik Viberg
henrik.viberg@ebc.uu.se
46-070-171-9060
Uppsala University
Source:Eurekalert

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