There is a certain comfort that comes from prescribing an approved drug for its FDA-indicated purpose. However, the most exciting news in preterm birth prevention resulted from two studies published in 2003 using compounded progesterone. Since then, the involvement of Pharma and the FDA seems only to have undermined patient care.
There has been a great deal written recently about the now-banned silicone breast implants made by Poly Implant Prothèse (PIP), a French company which has since closed down. It was found that PIP substituted industrial grade silicone for medical grade silicone, which led to the closing of PIP's manufacturing facility in the spring of 2010.
To get breast cancer, you need to have mutated cells as well as a local tissue environment that is egging them on. It is certainly possible that parabens can contribute to this environment. However, this study only tells us that they are ubiquitous in the cancerous breast. That does not mean that they are the cause of cancer.