According to the lead researcher Dr. Andrea Jurisicova, the mother (mice in this case), exposed to PAHsenvironmental pollutants found in cigarette smoke, car exhaust, smoke produced by fossil fuel combustion, as well as in smoked foodbefore pregnancy and/or during breastfeeding, but not during pregnancy, can cause a reduction in the number of eggs in the ovaries of their female offspring by two-thirds. This limits the window in which the daughter will be able to reproduce.
The new data provides biological support for epidemiological results, such as the previously observed reduction in fertility among daughters of smoking women. According to Dr. Norman Edelman of the American Lung Association, if we do our job right and these results get good press thus this data could remind women of what they are doing to their unborn fetuses. Dr. Amos Grunebaum of New York Weill Cornell Medical Center also added that this is an interesting study, but does not add much, since other studies have also shown similar outcomes. The key point here is that women should quit smoking before they even think of getting pregnant.
Although the findings do not define the length of time between quitting smoking and healthier fertility in offspring, Jurisicova noted that previous studies have shown that women who smoke have better results with in vitro fertilization one year after they quit smoking. The mice in the current study conceived up to two weeks after their final PAH injection, which is approximately equivalent to three menstrual cycles in women. More research is still needed for this, but mothers should be aware of the dangers that smoking can bring to their future offspring even after knowing this specific research study.
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