Navigation Links
Childhood Lead Exposure Causes Permanent Damage: Study
Date:12/1/2009

Long-lasting effects on brain seen by researchers using functional MRI

TUESDAY, Dec. 1 (HealthDay News) -- Childhood exposure to lead can cause permanent brain damage, a new study has found.

"What we have found is that no region of the brain is spared from lead exposure. Distinct areas of the brain are affected differently," study author Kim Cecil, an imaging scientist at Cincinnati Children's Hospital Medical Center and a professor of radiology, pediatrics and neuroscience at the University of Cincinnati College of Medicine, said in a news release.

The study included 33 adults, mean age 21, who were enrolled as infants in the long-term Cincinnati Lead Study, which looked at prenatal and early childhood exposure in 376 infants from high-risk areas of Cincinnati between 1979 and 1987.

The study participants had blood lead levels ranging from 5 micrograms to 37 micrograms per deciliter, with a mean of 14. They had IQ deficiencies and histories of juvenile delinquency and criminal arrests.

Functional MRI was used to monitor the participants' brains while they did two tasks that assess attention, decision making and impulse control. The scans showed that in order to complete a task that required inhibition, participants with elevated blood lead levels required activation from additional regions within the brain's frontal and parietal lobes.

"This tells us that the area of the brain responsible for inhibition is damaged by lead exposure and that other regions of the brain must compensate in order for an individual to perform. However, the compensation is not sufficient," Cecil said.

According to Cecil, the brain's white matter, which organizes and matures at an early age, adapts to lead exposure. But the frontal lobe, which is the last to develop, suffers permanent damage from lead exposure as it matures.

"Many people think that once lead blood levels decrease, the effects should be reversible, but, in fact, lead exposure has harmful and lasting effects," Cecil said.

The study was scheduled to be presented Tuesday at the Radiological Society of North America annual meeting, in Chicago.

More information

The U.S. Environmental Protection Agency has more about lead poisoning.



-- Robert Preidt



SOURCE: Radiological Society of North America, news release, Dec. 1, 2009


'/>"/>
Copyright©2009 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Childhood lead exposure causes permanent brain damage
2. Childhood Lead Exposure Causes Permanent Brain Damage
3. Mothers depression a risk factor in childhood asthma symptoms, study suggests
4. Youth Nutrition Education Needed In Farm-Based Education Programs To Combat Childhood Obesity
5. Childhood cancer survivors less likely to marry, Yale researchers find
6. Childhood Brain Cancer Causes Other Long-Term Problems
7. Childhood cancer survivors experience suicidal thoughts decades after diagnosis
8. Childhood ADHD Linked to Criminal Behavior in Adults
9. Pediatricians put proven treatment strategies to work against childhood asthma
10. NFL, National Dairy Council Take Aim at Childhood Obesity With Fuel Up to Play 60
11. Many Childhood Cancer Survivors Never Marry
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... Apple Rehab Shelton Lakes , which specializes ... of the facility as part of a disaster drill on October 3rd. , Apple ... Shelton City Emergency Manager, as well as the Connecticut Long Term Care Mutual ...
(Date:10/13/2017)... ... 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of ... popular and least understood books in the Holy Scriptures, Revelation. The Book of Revelation ... scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins ...
(Date:10/12/2017)... WILMINGTON, Del. (PRWEB) , ... October 12, 2017 ... ... technology and advisory services for healthcare compliance program management, will showcase a range ... and National Association for Assisted Living (NCAL) Convention and Expo to be held ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical Informatics ... PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. AMIA’s ... of Morris F. Collen, a pioneer in the field of medical informatics, this prestigious ...
(Date:10/12/2017)... ... ... Leading pediatric oncology experts at Children’s National Health System will ... the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired by Jeffrey ... Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief of the Division ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... , Oct. 11, 2017  Caris Life Sciences ... on fulfilling the promise of precision medicine, today announced ... joined Caris, Precision Oncology Alliance™ (POA) as its 17 ... centers, the St. Jude Crosson Cancer Institute will help ... the use of tumor profiling, making cancer treatment more ...
(Date:10/10/2017)... Pa. , Oct. 10, 2017   West ... in innovative solutions for injectable drug administration, today shared ... West,s ID Adapter for improving the intradermal administration of ... Fourth Skin Vaccination Summit in May 2017 by Dr. ... Lead, Polio Department, World Health Organization (WHO), and recently ...
(Date:10/4/2017)... Mass. , Oct. 4, 2017  According to the Centers for ... the end of October . PhysicianOne Urgent Care is helping communities across ... Westchester, NY , by offering no-cost* flu shots through the ... as mandated by certain health insurance regulations. ... The best time to get a flu shot is by the ...
Breaking Medicine Technology: