Current Chemical Testing Missing Low-Dosage Effects of Endocrine-Disrupting Chemicals

http://www.sciencedaily.com/releases/2012/03/120329100908.htm

ScienceDaily (Mar. 29, 2012) — Endocrine-disrupting chemicals (EDCs) -- such as BPA -- can show tangible effects on health endpoints at high dosage levels, yet those effects do not predict how EDCs will affect the endocrine system at low doses, according to a recent study accepted for publication in The Endocrine Society's Endocrine Reviews. Study authors say current definitions of low-dosage as used by the U.S. Environmental Protection Agency (EPA) do not fully take into account the unique influence that low doses of EDCs have on disease development in humans.

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"Low-dose effects are remarkably common in studies of natural hormones and EDCs," said Vandenberg. "We recommend greatly expanded and generalized safety testing and surveillance to detect potential adverse effects of this broad class of chemicals. Before new chemicals are developed, a wider range of doses, extending into the low-dose range, should be fully tested."

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