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Workplace BPA Exposure Increases Risk of Male Sexual Dysfunction, Kaiser Permanente Study Finds
Date:11/11/2009

OAKLAND, Calif., Nov. 11 /PRNewswire/ -- High levels of workplace exposure to Bisphenol-A may increase the risk of reduced sexual function in men, according to a Kaiser Permanente study appearing online in the journal Human Reproduction, published by Oxford Journals.[1]

The five-year study examined 634 workers in factories in China, comparing workers in BPA manufacturing facilities with a control group of workers in factories where no BPA was present. The study found that the workers in the BPA facilities had quadruple the risk of erectile dysfunction, and seven times more risk of ejaculation difficulty.

This is the first research study to look at the effect of BPA on the male reproductive system in humans. Previous animal studies have shown that BPA has a detrimental effect on male reproductive system in mice and rats.

Funded by the U.S. National Institute of Occupational Safety and Health, this study adds to the body of evidence questioning the safety of BPA, a chemical made in the production of polycarbonated plastics and epoxy resins found in baby bottles, plastic containers, the lining of cans used for food and beverages, and in dental sealants.

The BPA levels experienced by the exposed factory workers in the study were 50 times higher than what the average American male faces in the United States, the researchers said.

"Because the BPA levels in this study were very high, more research needs to be done to see how low a level of BPA exposure may have effects on our reproductive system," said the study's lead author De-Kun Li, MD, Ph.D., a reproductive and perinatal epidemiologist at Kaiser Permanente's Division of Research in Oakland, Calif. "This study raises the question: Is there a safe level for BPA exposure, and what is that level? More studies like this, which examine the effect of BPA on humans, are critically needed to help establish prevention strategies and regulatory poli
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SOURCE Kaiser Permanente
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