Navigation Links
Lead Exposure May Contribute to ADHD
Date:2/2/2010

Two studies report higher levels in kids with symptoms

TUESDAY, Feb. 2 (HealthDay News) -- Lead may play a role in the development of attention-deficit hyperactivity disorder (ADHD), new research suggests.

Genes are believed to account for as much as 70 percent of ADHD in children. Researchers trying to determine the cause of the other 30 percent of cases consider lead a prime suspect among possible environmental causes, according to the American Association of Psychological Science.

Lead, a neurotoxin, is present in trace amounts in such things as soil, drinking water, children's costume jewelry and imported candies. Nearly all children in the United States have measurable levels of lead in their bodies, the association reports.

In one of two recent studies examining the possible link between lead and ADHD, the researchers found that children with ADHD had slightly higher levels of lead in their blood than did children without ADHD. The second study showed an association between elevated levels of lead in children's blood and parent/teacher ratings of ADHD symptoms, including both hyperactivity and attention problems.

In both studies, the link between lead and ADHD was independent of the children's IQ, family income, race or whether their mothers had smoked during pregnancy.

The findings strongly suggest that lead may be a cause of ADHD, according to Joel Nigg, a psychological scientist at Oregon Health & Science University. He said that lead might disrupt brain activity in a way that leads to hyperactivity and attention problems.

The studies are published in the February issue of the journal Current Directions in Psychological Science.

More information

The U.S. National Institute of Mental Health has more about ADHD.



-- Robert Preidt



SOURCE: Association for Psychological Science, news release, Jan. 28, 2010


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

Related medicine news :

1. Acting Surgeon General Announces National Initiatives to Protect Children by Reducing Exposure to Secondhand Smoke
2. Penn School of Medicine receives $2.3 million to study biomarkers of cigarette smoke exposure
3. Teamsters Applaud Passage of Legislation to Protect Workers From Diacetyl Exposure
4. R rating might be unlikely to affect teens exposure to smoking in movies
5. Occupational exposures may be linked to death from autoimmune disease
6. Low Lead Exposures Can Hurt Kidneys
7. Exposure to sunlight may decrease risk of advanced breast cancer by half
8. Firing clay in unvented kilns may be a source of exposure to dioxins
9. VIDEO from Medialink and EcoQuest: New Technology Reduces Exposure to MRSA Staph
10. Fetal Exposure to Arsenic Affects Genes
11. Westaim reduces ABCP exposure
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2017)... ... ... Republicans in the United States Senate on Thursday released their version of bill ... significantly from the American Health Care Act, which the House passed in May, so ... have to take up the Senate version as-is, if it passes. , The following ...
(Date:6/25/2017)... ... ... a heatwave currently bearing down on Northern California pushing temperatures to the maximum, many people ... easy with laser hair removal. , The process of summer waxing and constantly shaving ... you want to do is get out, dive in and cool off. There is a ...
(Date:6/24/2017)... PA (PRWEB) , ... June 24, 2017 , ... ... held in Erie, PA at the Sheraton Erie Bayfront and Erie Convention Center ... evidence based medicine experience, exhibits, a student quiz bowl, award and scholarship presentations, ...
(Date:6/24/2017)... ... June 24, 2017 , ... Doorknobs are for convenience, deadbolts ... as getting a guard dog or having an alarm system installed. But unless there ... forced entry. Yair Frenkel, owner of TX Premier Locksmith in Killeen, TX says: “In ...
(Date:6/23/2017)... Long Beach, CA (PRWEB) , ... June 23, 2017 , ... ... (ANRF) has earned its ninth consecutive four-star rating from premier online charity evaluator, Charity ... ANRF in the top 1% of all charities reviewed by Charity Navigator and earns ...
Breaking Medicine News(10 mins):
(Date:6/19/2017)... , June 19, 2017  Researchers from DRUGSCAN ® ... they will host a live, complimentary webinar titled, "Untangling ... benchtop to the real world" on Wednesday June 28, ... This webinar will feature interviews with recreational ... into the manipulation techniques abusers use to prepare opioid ...
(Date:6/16/2017)...  Exactly 50 years ago today, the Monterey Pop Festival ... as the San Francisco "Summer of Love."  To celebrate the ... innovations in strategic market research portals that it will begin ... of Northern Light,s "Summer of Love (For Our Customers)."  ... ...
(Date:6/14/2017)... , June 14, 2017 The Bio ... City of Fremont and the ... the bio-pharma industry in California ... enabling executive networking, and fostering workforce development. The primary ... and growth of start-ups, as well as small and ...
Breaking Medicine Technology: