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Effects from low-level concentrations of harmful chemicals preserved in three generations of fish

Fish exposed to very low levels of chemicals commonly found in waterways can pass the impacts on to future generations that were never directly exposed to the chemicals, according to Oregon State University researchers. "What that gets at is something your grandparents may have come into contact with in their environment can still be affecting the overall structure of your DNA in your life today," said Kaley Major, a postdoctoral scholar at Oregon State and lead author of the paper published today in the journal Frontiers in Marine Science. The study focused on synthetic (man-made) endocrine disrupting chemicals, which mimic the body's hormones. They are found in many household and industrial products including flame retardants, food, toys, cosmetics and pesticides. Previous research has shown exposures to the chemicals can lead to altered sex ratios, lower fertility rates and deformities in fish. Read more...




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