Navigation Links
Prenatal Exposure to Pesticides May Harm Kids' Development
Date:2/7/2011

By Kathleen Doheny
HealthDay Reporter

MONDAY, Feb. 7 (HealthDay News) -- Children whose mothers had higher levels of exposure to a substance found in a commonly used pesticide were more likely to get lower scores on a mental developmental test at 3 years of age than children whose mothers were exposed to lower levels or not at all, new research says.

Megan Horton, a postdoctoral research fellow at Columbia University's Mailman School of Public Health in New York City, and her colleagues followed 348 mothers from low-income areas of New York City whose prenatal exposure to pyrethroid insecticides -- found in pesticides commonly used around the home -- was tracked.

The researchers measured not the common pyrethroid called permethrin but rather piperonyl butoxide (PBO), a chemical added to permethrin that boosts its potency, Horton said. They measured PBO because permethrin is metabolized quickly and difficult to measure, she added.

The study authors measured the mothers' prenatal exposure by taking air samples or blood samples. To get the air samples, mothers wore backpacks that collected air from their breathing zone, which was then analyzed.

Children were then put into four groups or "quartiles," depending on the level of their mothers' exposures to PBO during pregnancy.

At age 3, the children were evaluated using standard scales to assess their cognitive and motor development, according to the study published online Feb. 7 in the journal Pediatrics.

"Kids who were in the highest quartile range of exposure to PBO were three times as likely to be in the delayed category, compared to kids with lower exposure," Horton said.

Horton's team compensated for factors such as gender, ethnicity, education of the mothers, and toxins such as tobacco smoke in the home.

Horton said it's impossible to say what levels of pesticide are safe, partly because many factors come into play, such as the type of pesticide used and the ventilation provided.

She did not have data on the frequency of pesticide use. "I don't know whether the mothers used it five times a week or once a week," she added.

Pyrethroid insecticides have replaced another class of bug killers, known as organophosphorus (OP) insecticides, Horton said. Increasing pesticide regulations from the U.S. Environmental Protection Agency have resulted in fewer residential exposures to OP insecticides, she said.

But, pyrethroid insecticides have not been evaluated for long-term effects on the body after low-level exposure, she said.

Jennifer Sass, a senior scientist at the Natural Resources Defense Council, who reviewed the study but was not involved with it, said the findings ''should convince every parent and want-to-be parent to avoid these pesticides."

Horton suggests that parents turn to so-called integrated pest management, which includes common-sense measures to control pests such as eating only in home eating areas, not bedrooms; keeping cracks and crevices in the house repaired to keep out pests; using trash cans with a lid and liner to contain garbage; and storing food properly.

Efforts by HealthDay to reach the pesticide industry for comment were unsuccessful.

More information

To learn more about integrated pest management, visit the U.S. Environmental Protection Agency.

SOURCES: Megan Horton, Ph.D., postdoctoral research fellow, Columbia University Mailman School of Public Health, New York City; Jennifer Sass, Ph.D., senior scientist, health and environment, Natural Resources Defense Council, Washington, D.C.; Feb. 7, 2011, Pediatrics, online


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Prenatal Pesticide Exposure May Raise Risk of Attention Issues in Kids
2. Prenatal Exposure to Chemicals Linked to Breast Cancer Risk
3. Prenatal exposure to endocrine-disrupting chemicals linked to breast cancer
4. Babies Responses to Prenatal Stress Differ by Gender
5. Exposure to prenatal smoking may lead to psychiatric problems
6. Prenatal Healthcare Providers Inconsistent In Weight Gain Counseling
7. Prenatal Stress May Boost Babys Asthma Risk
8. HAPPYBABY Unveils Partners Prenatal Instructional Yoga DVD
9. UM School of Medicine finds prenatal cocaine exposure not severely damaging to growth, learning
10. Good Parenting Triumphs Over Prenatal Stress
11. Risk of cancer increases with exposure to low-dose radiation
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2017)... ... March 24, 2017 , ... Vighter established its NAEMT Authorized ... providing Prehospital Trauma Life Support (PHTLS) course scholarships to four medics assigned to ... developed in cooperation with the American College of Surgeons to promote critical thinking ...
(Date:3/24/2017)... ... March 24, 2017 , ... The Radiology Business Management Association ... The annual awards, now in their 12th year, are among the most prestigious in ... In 2016, the awards were retooled to recognize achievements in both large budget (over ...
(Date:3/24/2017)... Lake Orion, MI (PRWEB) , ... March 24, ... ... providing insurance assistance, financial planning, and related services to families and business owners ... charity initiative aimed at feeding regional families struggling with financial difficulties. , The ...
(Date:3/24/2017)... ... March 24, 2017 , ... Northridge dentists, ... treatments for sleep apnea and TMJ at their office. TMJ, or temporomandibular joint ... the obstructive type, is increasingly being treated at dental offices with newly developed ...
(Date:3/24/2017)... ... 24, 2017 , ... Gastro Health (“GH”) ( http://www.gastrohealth.com ... for colonoscopy at the HyGIeaCare® Center that is to be located adjacent to ... , The HyGIeaCare® Prep, cleared by the U.S. Food and Drug Administration (FDA), ...
Breaking Medicine News(10 mins):
(Date:3/23/2017)... INDIANAPOLIS , March 23, 2017  Eli Lilly ... William Sansum Diabetes Center have established a research collaboration ... diabetes through enhanced research, education and care. ... bears a disproportionate weight on Latino families in ... Kerr , M.D., FRCPE, director of Innovation and Research ...
(Date:3/23/2017)... Summary Global ... guide Primary Hyperoxaluria - Pipeline Review, H1 2017, ... Urinary System And Sex Hormones) pipeline landscape. ... recurrent kidney and bladder stones. It results from ... include blood in the urine, pain when urinating, ...
(Date:3/23/2017)... March 23, 2017  Digital Pharmacist Inc. ( ... a rapidly growing digital health company, announced today ... that allows patients to manage their prescriptions. Over ... as Denver Health Pharmacy, USave Pharmacy and Owen,s ... Digital Pharmacist accelerate its product development schedule, the ...
Breaking Medicine Technology: