Long-known to have serious health effects on both animals and humans, BPA (Bisphenol-A) is still one of the most prevalent health-damaging chemicals present in the everyday life in the Western world.
Fred vom Saal, an endocrinologist with the University of Missouri has studied BPA and its effects, particularly on the reproductive system for over 20 years and has repeatedly found that BPA is not only an endocrine-disruptor, but an hormone-disruptor as well.
Now, a new study published by Jorge Chavarro of Harvard University confirms Vom Saal’s findings.
These findings include that BPA causes a linear increase in the death-rate of embryos and that the chemical could be the reason for the decrease in frequency of implantation, pregnancy and live birth rates in couples who have sought in vitrofertilization (IVF).
Vom Saal wrote a review of the study concluding that the results of the experiment is yet another example of why BPA usage should cease.
Vom Saal wrote,
The study, published by Jorge Chavarro at Harvard University, substantiates my lab’s work on BPA and confirms a number of prior findings.
Dr. Chavarro and his team studied the effects of BPA on embryos in females undergoing in vitro fertilization and confirmed a number of prior findings. In science, when there are multiple, independent confirmations, then the scientific community accepts the findings, so this is a substantial turning point in the study of BPA and IVF.
BPA is one of the highest volume endocrine disrupting chemicals used in commerce, with current estimates determining that more than 7.7 million tons of the chemical being are produced each year. Additionally, since thousands of dollars can be spent during an IVF cycle and BPA has been proven to alter signaling mechanisms involving estrogen and other hormones required for successful IVF, it is likely that BPA is producing financial and emotional stress on couples seeking the procedure.
Previous studies have shown that BPA damages both sperm and eggs; these results have been demonstrated in both animals and humans.
The findings by Chavarro and colleagues show that the probability of having a surviving embryo goes from more than 50 percent to under 20 percent as levels of BPA increase. Nearly 20 years after my lab and others reported the first adverse reproductive effects in animals, BPA has finally begun to be identified as a reproductive toxicant by authorities. As findings continue to mount and confirm that daily exposure to BPA is a reproductive toxicant, it becomes vital to regulate and control this chemical.
Vom Saaul recently presented his research and evidence at the Wisconsin Environmental Health conference held at the University of Wisconsin Madison.