Widely Used Herbicide Linked to Preterm Births

Arthur T Knackerbracket has processed the following story:

Exposure to a chemical found in the weed killer Roundup and other glyphosate-based herbicides is significantly associated with preterm births, according to a new University of Michigan study.

The study, published in Environmental Health Perspectives, found that the presence of the chemical in women's urine in late pregnancy was linked to an increased risk for premature birth, while the association was inconsistent or null earlier in the pregnancy.

"Since most people are exposed to some level of glyphosate and may not even know it, if our results reflect true associations, then the public health implications could be enormous," said senior author John Meeker, professor of environmental health sciences and senior associate dean for research at the U-M School of Public Health.

[...] The researchers decided to measure glyphosate and aminomethylphosphonic acid (AMPA)-one of the primary degradation products of the herbicide-by testing urine, since the chemicals are not metabolized by mammals. They tested the urine of 247 pregnant women at the first and third study visit of their pregnancy, at 16-20 weeks and 24-28 weeks.

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