Three strikes for BPA


There is nothing new about the effect of BPA on male reproduction. It’s bad. But for the first time, we can now turn to human research for the evidence and this may lead more quickly to regulation by the FDA and other groups.

Bisphenal-A or BPA has been significantly associated with sperm concentration decreased total sperm count, decreased sperm vitality and decreased sperm motility in a new study published by Kaiser Permanente in the journal of Fertility and Sterility, Dr. De Kun Li confirms that this is the true for male humans as well as other mammals tested in the lab.

This study is third in a three part series all conducted by Dr. Li of Kaiser Permanente. Published in oxford Journals Human Reproduction, the first study found that exposure to high levels of BPA increases the risk of reduced sexual function in men. Study number two found in the Journal of Andrology showed that increasing BPA levels in urine are related to a worsening of male sexual function. This latest study reports the adverse relationship between BPA and semen quality.

“Compared with men without detectable urine BPA, those with detectable urine BPA had more than three times the risk of lowered sperm concentration and lower sperm vitality, more than four times the risk of a lower sperm count, and more than twice the risk of lower sperm motility,” said Dr. Li. He pointed out that BPA in the urine was not related to volume or unusual morphology of the sperm.

This latest study adds to the pile of evidence against BPA regarding its safety and potential for health hazard. BPA is found in polycarbonated plastics and epoxy resins like those used in baby bottles, plastic containers, the lining of cans used for food and beverages, and even in dental sealants.

Source: Fertility and Sterility, ScienceDaily


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