From Environmental Health News:

Bisphenol A (BPA) can alter the way genes are read in male rats exposed to the chemical as newborns. The so-called epigenetic changes had lasting effects on reproductive hormone signals into adulthood that may partially explain reported effects of the chemical on male fertility.

The findings add to a growing body of research showing that BPA can impact the way genes are coded and then interpreted later in life during sexual maturity. Such changes have been documented in the brain, prostate and uterus.

The early-life exposures added chemical groups to two important genes on the DNA in the testes and increased the levels of enzymes that control these epigenetic additions. Due to the broader impact on these enzyme levels, newborn BPA exposure may affect more genes and levels of control than identified in the current study.