Pollutants long gone, but disease carries on

Certain chemicals cause epigenetic changes that foster illness in rats’ offspring

By Janet Raloff, 17:42 PM February 28, 2012

Exposure to certain pollutants early in a rat’s pregnancy can foster disease in her offspring during their adulthood as well as in subsequent generations, a new study shows. A wide range of pollutants elicited such lasting effects, despite future generations never encountering the triggering pollutant.

Some chemicals tested led to premature puberty among great-granddaughters, with an increased risk of disease in reproductive tissues. In some tests, the chemicals disrupted ovarian function, ...

Source URL: https://www.sciencenews.org/article/pollutants-long-gone-disease-carries