• High Exposure to BPA can Affect Quality of Eggs in Women

    A study links women’s high exposure to BPA to a decrease in the number of normally fertilized eggs.
  • plastic bottlesA study from the University of California in San Francisco shows the probability of the effects of bisphenol A or BPA on women’s eggs retrieved for in vitro fertilization or IVF. The experts observed that as the levels of BPA in the woman’s blood level increased, the percentage of eggs normally fertilization dwindled to as low as 50 percent.

    BPA is a chemical made of strong bonds that makes plastic durable and transparent, commonly found in household products, reusable water bottles and even the resins forming linings inside metal cans and beverage cans.

    The study involved analyzing the BPA levels and fertilization rates of 26 women who were undergoing IVF treatment in 2007 and 2008 at the UCSF Center for Reproductive Health. The study was actually investigating a broader issue – the effects of toic metals such as mercury, cadmium and lead on fertility.

    Other studies conducted on mice before highly suggest that BPA affects eggs’ DNA, as well as an inverse relationship between BPA urinary concentrations and the amount of eggs retrieved during IVF.

    As early as the 1990s, scientists have confirmed that BPA can seep from finished plastics and that it can actually cause genetic abnormalities, aside from its being an environmental contaminant as well.

    "While preliminary, the data indicate the negative effect of BPA on reproductive health and the importance of allocating more funding to further investigate why such environmental contaminants might be disrupting fertility potential," said lead study author and UCSF Department of Obstetrics and Reproductive Sciences, as well as faculty of the UCSF Center for Reproductive Health, Victor Y. Fujimoto, M.D.

    Adds Fujimoto:"Unfortunately, at this time there is no clinically-available test to determine BPA levels in women. Despite the limited evidence, a cautious approach for women who are considering IVF treatment would be to reduce their exposure to BPA through modifications in lifestyle and diet."

    The findings from this study are available in the online journal Fertility and Sterility

     

    Photo from sxc.hu

     

    SOURCE:
    •    December 15, 2010. “Increased BPA Exposure Linked to Reduced Egg Quality in Women,” sciencedaily.com

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