lead

Study links lead exposure to brain cancer in adults (press release)

Monday, October 16, 2006 by: NaturalNews
Tags: health news, Natural News, nutrition

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
BACK INTO THE CLOSET: Why U.S. reporters are not allowed to write about rainbow events in nations where being gay is still condemned
Depopulation test run? 75% of children who received vaccines in Mexican town now dead or hospitalized
A family destroyed: Six-month-old dies after clinic injects baby with 13 vaccines at once without mother's informed consent
Biologist explains how marijuana causes tumor cells to commit suicide
U2's Bono partners with Monsanto to destroy African agriculture with GMOs
Companies begin planting microchips under employees' skin
BAM! Chipotle goes 100% non-GMO; flatly rejecting the biotech industry and its toxic food ingredients
ECONOMIC SLAVERY FOR ALL: While we were distracted with the Confederate flag flap, Congress quietly forfeited our entire economic future via fast-track trade authority
NJ cops bust teenagers shoveling snow without a permit
Russia throws down the gauntlet: energy supply to Europe cut off; petrodollar abandoned as currency war escalates
McDonald's in global profit free fall as people everywhere increasingly reject chemically-altered toxic fast food
March Against Monsanto explodes globally... World citizens stage massive protests across 38 countries, 428 cities... mainstream media pretends it never happened
Chemotherapy kills cancer patients faster than no treatment at all
600 strains of an aerosolized thought control vaccine already tested on humans; deployed via air, food and water
Italian court rules mercury and aluminum in vaccines cause autism: US media continues total blackout of medical truth
SCOTUS same-sex marriage decision may have just legalized the concealed carry of loaded firearms across all 50 states, nullifying gun laws everywhere
The 21 curious questions we're never allowed to ask about vaccines
Vicious attack on Dr. Oz actually waged by biotech mafia; plot to destroy Oz launched after episode on glyphosate toxicity went viral
Delicious
People who are routinely exposed to lead on the job are 50 percent more likely to die from brain cancer than people who are not exposed, according to a University of Rochester Medical Center study.

More than 18,000 brain and spinal cord tumors will be diagnosed in the United States this year. Yet little is known about what causes brain cancer; the only established risk factor is radiation, according to the American Cancer Society.

Results of other studies attempting to show a clear link between lead and cancer have been inconclusive. The new data, based on information from the U.S. Census Bureau and the National Death Index, may be the largest study ever to find a lead-cancer link. In doing so it provides further evidence that widespread environmental risk factors such as lead must be explored, said study author Edwin van Wijngaarden, Ph.D.

"If we are able to help explain the cause of even 1 or 2 percent of the total number of cases, that's important," said van Wijngaarden, an assistant professor and epidemiologist in the Department of Community and Preventive Medicine at the University of Rochester.

Published in the Sept. 1, 2006, issue of the International Journal of Cancer, the study computed the risk estimates for lead exposure and brain cancer from a census sample of 317,968 people who reported their occupations between 1979 and 1981. Van Wijngaarden was looking for evidence of an exposure-response trend, or a rise in cancer incidence or mortality associated with an exposure to a toxic substance. The goal among researchers who do this type of investigation is to identify preventable, environmental risk factors that might cause the gene mutations that lead to cancer.

Each occupation was classified into categories established by the National Cancer Institute. The NCI job matrix for lead is designed to estimate the likelihood of exposure and the intensity of exposure. It rates each occupation on a scale from zero (no exposure) to three (high exposure).

Gas station attendants from the 1970s and early 1980s, for example, were estimated to have a high probability of exposure, but only medium intensity of exposure because their direct contact with leaded gasoline was not as great as the potential for contact. The jobs with the highest probability and intensity of lead exposure were painters and automobile mechanics. But firefighters, engineers, automobile assemblers, truck drivers, plumbers, welders, and printers or typesetters were all among those individuals with some likelihood of lead exposure, according to the NCI matrix.

When Van Wijngaarden applied the matrix to nearly 318,000 people and followed their cancer rates for nine years, he found 119 brain cancer deaths. The death rate among people with jobs that potentially exposed them to lead was 50 percent higher than unexposed people, and the number of deaths was larger than in many previous studies, van Wijngaarden said. Other trends that emerged were slightly higher death rates among less educated and married individuals.

Scientists have suspected for years that lead is a carcinogen, which passes through the blood-brain barrier, making the brain especially sensitive to the toxic effects of lead. Van Wijngaarden is continuing his research with a pilot study to measure the actual bone-lead levels in people who have been diagnosed with brain tumors.

"My interest is in exploring the long-term implications of lead exposure," van Wijngaarden said. "Lately, a lot of the information about lead and its toxicity has focused on children. We do know that in young people it can cause acute illness and behavioral problems. But what is under appreciated, I believe, are the chronic health effects."

Contact: Leslie Orr leslie_orr@urmc.rochester.edu 585-275-5774 University of Rochester Medical Center

Join over four million monthly readers. Your privacy is protected. Unsubscribe at any time.
comments powered by Disqus
Take Action: Support NaturalNews.com by linking back to this article from your website

Permalink to this article:

Embed article link: (copy HTML code below):

Reprinting this article:
Non-commercial use OK, cite NaturalNews.com with clickable link.

Follow Natural News on Facebook, Twitter, Google Plus, and Pinterest

Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

GET SHOW DETAILS
+ a FREE GIFT

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.