Link between birth defect gastroschisis and the agricultural chemical atrazine found
In a study to be presented today at the Society for Maternal-Fetal Medicine's (SMFM) annual meeting, The Pregnancy Meeting ™, in Chicago, researchers will unveil findings that demonstrate a link between the birth defect gastroschisis and the agricultural chemical atrazine. Gastroschisis is a type of inherited congenital abdominal wall defect in which the intestines, and sometimes other organs, develop outside the fetal abdomen through an opening in the abdominal wall. The incidence of gastroschisis is on the rise, increasing two to four times in the last 30 years.
Researchers at the University of Washington (Seattle), were alerted to a higher than normal number of cases in Eastern Washington which caused them to hypothesize that the increased incidence could be due to environmental exposures in that area.
"Our state has about two times the national average number of cases of gastroschisis," said Dr. Sarah Waller, one of the study's authors. "The life expectancy for fetuses with this diagnosis is better than 90 percent; however it requires delivery at a tertiary care center with immediate neonatal intervention which often separates families and can cause serious financial and emotional stress."
The team conducted a study of all cases of live born infants with gastroschisis during the period of 1987-2006. They matched birth certificates with U.S. Geological Survey databases of agricultural spraying. They looked at the chemicals atrazine, nitrates, and 2,4-dichlorophenoxyacetic acid.
Of the 805 cases and 3616 controls in the study, gastroschisis occurred more frequently among infants whose mothers resided less than 25 km from the site of high surface water contamination with atrazine. No risk was associated with the other chemicals reviewed in the study. The risk of gastroschisis also increased for women who conceived in the spring (March through May), when chemical use is more prevalent.
- Link between birth defect gastroschisis and the agricultural chemical atrazine foundfrom Science DailySun, 7 Feb 2010, 0:28:15 EST
- Atrazine maker disputes defect findingsfrom UPIFri, 5 Feb 2010, 15:21:29 EST
- Atrazine linked to birth defectfrom UPIFri, 5 Feb 2010, 13:07:28 EST
- Link between birth defect gastroschisis and the agricultural chemical atrazine foundfrom PhysorgFri, 5 Feb 2010, 8:56:07 EST
- Study finds screening for spinal muscular atrophy not cost effectivefrom PhysorgFri, 5 Feb 2010, 6:42:09 EST
Latest Science NewsletterGet the latest and most popular science news articles of the week in your Inbox! It's free!
Learn more about
Check out our next project, Biology.Net
From other science news sites
Popular science news articles
- How a plant beckons the bacteria that will do it harm
- Small business owners not always worried about being treated fairly, researcher finds
- Astronomical forensics uncover planetary disks in NASA's Hubble archive
- New ultrasound device may add in detecting risk for heart attack, stroke
- Microscopic organism plays a big role in ocean carbon cycling, Scripps scientists discover
- Criticism of violent video games has decreased as technology has improved, gamers age
- Hummingbirds' 22-million-year-old history of remarkable change is far from complete
- Research clarifies health costs of air pollution from agriculture
- Ancient 'spider' images reveal eye-opening secrets
- New research finds 'geologic clock' that helps determine moon's age