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Endocrine-disrupting chemicals pose cancer risk
Date:5/25/2010

BOSTON (May 25, 2010) Longtime environmental health researchers at Tufts University School of Medicine describe the carcinogenic effects of endocrine-disrupting chemicals (EDCs), ubiquitous chemicals that have hormone-like effects in the body. In a review article published online May 25 in Nature Reviews Endocrinology, the researchers express the need for more complex strategies for studying how these chemicals affect health but report that ample evidence already supports changing public health and environmental policies to protect the public from exposure to EDCs.

"The strength and breadth of existing research on the negative effects of EDCs, including bisphenol A, warrants immediate action to reduce EDC exposure, particularly among the developing fetus and women of reproductive age," said author Carlos Sonnenschein, MD, professor in the department of anatomy and cellular biology at Tufts University School of Medicine (TUSM).

"Developing embryos 'read' environmental cues as a forecast of the outside world. These cues can affect the way certain genes are expressed and in this way alter the structure and function of organs. Studies in rodents show that EDCs can cause harm at much lower levels if exposure happens during organ formation as opposed to exposures during adulthood," said author Ana Soto, MD, professor in the department of anatomy and cellular biology at TUSM.

"The evidence indicates that exposure to BPA and other EDCs may contribute to diseases that manifest during adult life, such as increased cancer rates in the industrialized world. These chemicals have also been linked to obesity, altered behavior, and infertility," continued Soto.

The researchers drew several key points from the body of observational, epidemiological, and animal research examining EDCs, emphasizing that embryos display an increased sensitivity to the chemicals. In particular, Soto and Sonnenschein focused on bisphenol A (BPA), a chemi
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Contact: Siobhan Gallagher
617-636-6586
Tufts University, Health Sciences
Source:Eurekalert

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