The chemicals in some pesticides are so strong that traces of them can occur during some women’s pregnancies and affect the lives of their offspring, according to a new study.
The article was published in the medical research journal Cancer Epidemiology, Biomarkers & Prevention. An association between maternal exposure to the pesticide component dichloro-diphenyl-trichloroethane (DDT) and obesity in children and grandchildren has been investigated.
Scientists have also looked at menarche in women who are descended from a mother with the first exposure to DDT, or when they receive their first menstruation.
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Using a multi-generation cohort spanning 60 years, beginning in the late 1960s, researchers studied serum samples during pregnancies of women within this cohort, specifically looking for trace amounts of DDT.
Blood samples were collected during each trimester and completed within three days after delivery.
The results found that granddaughters of women with traces of DDT in their body serums during and after their pregnancies were more likely to be obese and see their periods at an early age.
‘Our findings are in line with the hypothesis that exposure to grandma to DDT could have contributed [sic] dramatic increases in obesity in current young adult women, including the granddaughter generation in the CHDS group, ”the report concludes.
DDT was introduced in synthetic pesticides and insecticides in the 1940s. With increasing evidence suggesting that DDT was harmful to the environment, coupled with ‘declining benefits’, the U.S. Environmental Protection Agency (EPA) discontinued its use by 1972, according to the agency website.
Other medical literature studying adverse effects of DDT exposure has linked it to breast cancer and cardiometabolic diseases. With this recent study, early menarche and obesity may be additional risk factors, even in exposure to ancestors.
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