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    Study: High BPA Linked to Sex Problems in Men

    Men Exposed to High Levels of the Chemical Reported Erection Problems, Lower Sex Drive
    By
    WebMD Health News
    Reviewed by Louise Chang, MD

    Nov. 11, 2009 -- Workers exposed to very high levels of the chemical bisphenol A (BPA) were four to seven times more likely to report sexual function problems than were workers with no occupational exposure to the chemical, a new study shows.

    Earlier research has linked BPA exposure to reproduction problems in animals, but the five-year study is the first to do so in humans.

    Researchers with Kaiser Permanente compared self-reported sexual function scores among male factory workers in China who were and were not exposed to BPA on the job.

    BPA levels among the occupationally exposed men were about 50 times higher than average levels among American men and Chinese men with no occupational exposure to the chemical, the researchers say.

    Lower Sex Drive, Less Satisfaction

    Compared to the unexposed factory workers in the study, BPA-exposed workers were four times more likely to report erectile dysfunction, low sexual desire, and less than optimal satisfaction with their sex lives. They were seven times more likely to report problems with ejaculation.

    The findings must be replicated to prove the link between high levels of exposure to BPA and sexual dysfunction in men, Kaiser Permanente reproductive epidemiologist De-Kun Li, MD, PhD, tells WebMD.

    "We also need to study lower levels of exposure closer to those consumers get," he says. "But up until this point the critics have dismissed the idea that BPA has health effects at any level because most of the research has been in animals. They can no longer do this."

    BPA has been used for more than three decades to make plastic bottles and other products shatter resistant and clear. It is also used in the lining of many canned foods and a wide range of other commercial goods.

    For nearly a decade, scientists have debated whether exposure to BPA through commercial products poses a health threat to humans.

    The new study, published in the journal Human Reproduction, does not address this issue because BPA levels among the occupationally exposed men were so much higher than in the community at large.

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