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Chemical in Plastics May Cause Fertility Problems
Date:11/13/2008

Exposure to BPA might lessen chances of successful pregnancy, research suggests

THURSDAY, Nov. 13 (HealthDay News) -- Bisphenol A, a controversial chemical used to harden plastic packaging for many foods and beverages, may affect human reproduction, researchers report.

Bisphenol A (BPA) could hurt the chances of successful in vitro fertilization, or the ability of embryos to attach to the uterus, according to presentations at the American Society for Reproductive Medicine's annual meeting, which concluded Wednesday in San Francisco.

"The issue of environmental toxicants upon human reproduction is very important," said Dr. Richard J. Paulson, chief of the Division of Reproductive Endocrinology and Infertility at the University of Southern California Keck School of Medicine, who was not involved in the studies.

Last month, a U.S. Food and Drug Administration advisory panel said the agency had erred when it said that BPA, which is widely used in baby bottles and other plastic packaging for foods and beverages, posed no health risks. The agency said it would probably start research early in 2009 to determine the toxic effects of BPA on babies less than 1 month old.

In the first report, a team led by Dr. Julie Lamb, of the University of California, San Francisco, measured levels of BPA in people going through their first cycle of in vitro fertilization (IVF). Ninety-three percent of the 41 women had measurable BPA levels; among the 31 men, 81 percent had quantifiable levels of the chemical.

The researchers also found there was a small trend among women with measurable BPA levels not to become pregnant.

Paulson doesn't think this finding is proof that BPA can affect the chances of successful in vitro fertilization.

"Most of the women had detectable levels of BPA, indicating that BPA is definitely in the circulation of women undergoing fertility treatment," he said. "However, the s
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