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New Bisphenol A Study Is of Very Limited Relevance to Human Health
Date:6/17/2009

ARLINGTON, Va., June 17 /PRNewswire-USNewswire/ -- The following statement can be attributed to Steven G. Hentges, Ph.D. of the American Chemistry Council's (ACC) Polycarbonate/BPA Global Group. Dr. Hentges' comments are in regard to a study from researchers at North Carolina State University (NCSU) and the National Institute of Environmental Health Sciences (NIEHS). The study, "Neonatal bisphenol A exposure alters rat reproductive development and ovarian morphology without impairing activation of gonadotropin releasing hormone neurons," was funded by NIEHS and published online June 17 by the journal Biology of Reproduction. The study was co-authored by Heather B. Patisaul and Heather B. Adewale of NCSU and Wendy N. Jefferson and Retha R. Newbold of NIEHS.

"The American Chemistry Council (ACC) and its member companies have long-supported research to advance scientific understanding about chemicals and promote public health. To achieve these goals with limited resources, including limited use of laboratory animals, study designs should be based on sound scientific principles and data so as to be directly relevant to human health. This new study fails to meet these basic study design principles and practices.

"It is a continuing disappointment to see that researchers -- including scientists from National Institute of Environmental Health Sciences (NIEHS) -- conduct studies that involve injection of laboratory animals with bisphenol A (BPA). This experimental technique has recently been acknowledged by the NIEHS to have very limited value for assessing human health effects since people are orally exposed to BPA, not by injection. It is well-known that BPA is efficiently metabolized and rapidly eliminated from the body after oral exposure.

"The researchers also state, incorrectly, that their study is significant because it used a dose equal to the EPA reference dose for BPA, which is a science-
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SOURCE American Chemistry Council
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