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Prenatal exposure to environmental pollutants determines weight and size at birth
Date:11/14/2011

University of Granada researchers have proven that infants born to women living in large cities are more likely to have higher weight at birth than those born to mothers living in rural areas. This is probably due to a higher exposure to xenoestrogens, a type of environmental pollutants that act like hormones. This is the first research study conducted in Spain establishing a correlation between estrogenic burden in pregnant women's placenta and a higher birth weight.

For the purpose of this study, the researchers examined two groups of pregnant women. The first group was composed of pregnant women living in Madrid, while the second consisted of women living in Granada. The researchers found that there were biological, demographic and socioeconomic differences between both groups of women, which determined the presence of xenoestrogens in the placenta due to exposure to environmental chemicals.

The first group of mothers was composed of women living in Madrid, having a medium-high educational level, and most of them (89%) working in the field of administration or education. By contrast, the mothers sampled in the second group lived in rural areas of the province of Granada, had a low educational level (53.4% ​​had no education or only primary education), and a high percentage of them were exclusively devoted to household chores (38.3%).

All these factors determine environmental exposure.

The researchers examined the factors conditioning environmental exposure, and a correlation was found between anthropometric and sociodemographic factors, health status, lifestyle and working conditions, and the total estrogenic burden. University of Granada researchers found that the estrogenic effect of placental tissue extract is directly related with certain characteristics in parents, childbirth and newborn babies. Thus, the group with higher estrogenic effect of placental tissue extract in alpha fraction was that of older wo
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Contact: Remedios Prada
reprama@hotmail.com
678-551-9823
University of Granada
Source:Eurekalert

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