cancer

Evidence reveals post-Chernobyl thyroid cancer risk rises with increasing radiation dose

Friday, April 04, 2014 by: David Gutierrez, staff writer
Tags: thyroid cancer, radiation dose, Chernobyl

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
CDC issues flu vaccine apology: this year's vaccine doesn't work!
The five biggest lies about Ebola being pushed by government and mass media
Ultraviolet light robot kills Ebola in two minutes; why doesn't every hospital have one of these?
Tetanus vaccines found spiked with sterilization chemical to carry out race-based genocide against Africans
Biologist explains how marijuana causes tumor cells to commit suicide
Companies begin planting microchips under employees' skin
The best way to help your body protect itself against Ebola (or any virus or bacteria)
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
W.H.O. contradicts CDC, admits Ebola can spread via coughing, sneezing and by touching contaminated surfaces
Top ten things you need to do NOW to protect yourself from an uncontrolled Ebola outbreak
Chemotherapy kills cancer patients faster than no treatment at all
FDA targets Dr. Bronner's Magic Soaps for sharing health benefits of coconut oil
U2's Bono partners with Monsanto to destroy African agriculture with GMOs
Why flu shots are the greatest medical fraud in history
Governments seize colloidal silver being used to treat Ebola patients, says advocate
Flu vaccine kills 13 in Italy; death toll rises

Delicious
(NaturalNews) As the debate continues over the degree to which radiation from Japan's Fukushima nuclear plant has spread around the world, health officials would do well to consider a 2004 study showing the connection between the Chernobyl nuclear meltdown and elevated thyroid cancer rates nearly 20 years later.

The study, published in the journal Radiation Research, found that the risk of thyroid cancer 18 years after the Chernobyl meltdown was directly related to the amount of radioactive iodine that people had been exposed to in the first months after the disaster.

The study was conducted by researchers from the Fred Hutchinson Cancer Research Center and four Russian institutions, and was funded by the U.S. Office of Naval Research.

"This is the first study of its kind to establish a dose-response relationship between radiation dose from Chernobyl and thyroid cancer," lead researcher Scott Davis commented at the time. "We found a significant increased risk of thyroid cancer among people exposed as children to radiation from Chernobyl, and that the risk increased as a function of radiation dose."

Before Chernobyl, no thyroid cancer

Until the 2011 Fukushima meltdown, the Chernobyl meltdown was considered the worst nuclear accident in history. About 30 people were killed by the explosion, and around 5 million were exposed to radiation.

"Prior to Chernobyl, thyroid cancer in children was practically nonexistent," Davis said. "Today we see dozens and dozens of cases a year in the regions contaminated by the disaster, and the incidence continues to rise."

Prior to 2004, all research into the health effects of the Chernobyl disaster had relied on indirect estimates of radiation exposure, such as proximity to the nuclear plants or ground contamination in the area where study participants were living.

"After all these years, many efforts have been made by various research groups around the world to study the health effects of Chernobyl, and hundreds of scientific papers have been published. But ours is the first report that provides quantitative estimates of thyroid-cancer risk in relation to individual estimates of radiation dose," Davis said.

Using a local cancer registry, the researchers identified 26 thyroid cancer patients who were less than 20 years old at the time of the Chernobyl disaster and who were living in the western part of Russia's Bryansk Oblast, lying only about 66 miles from Chernobyl and considered the most heavily contaminated area of the Russian Federation. The researchers then interviewed these patients and 52 healthy controls about factors that might have led to an increased radiation dose. Participants' parents were also interviewed, since many participants were very young at the time of the disaster.

Dairy most dangerous

The researchers found that thyroid cancer rates were 45 times higher among those exposed to the highest radiation doses than they were among those exposed to the lowest doses. Notably, the single greatest predictor of radiation dose was the consumption of dairy products from cows that had grazed on radiation-contaminated pastures. Such products were high in radioactive iodine-131 (I-131), which is known to concentrate in the thyroid gland.

Nearly all of the radiation exposure associated with thyroid cancer risk occurred within months of the disaster, before I-131 decayed into less dangerous forms.

Seven years before Fukushima, the researchers suggested that their study might help officials better understand what health effects to expect from future disasters.

"Another potential benefit of the findings is that it allows officials to more accurately understand and document the magnitude of the thyroid-cancer burden that has resulted from Chernobyl," Davis said. "This information will be important in designing and maintaining programs targeted toward the victims of the disaster."

Sources for this article include:

http://www.fhcrc.org

http://enenews.com

http://www.commondreams.org

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.