Navigation Links
Cancer Risk From Radiation Doesn't Fade With Age
Date:10/27/2010

TUESDAY, Oct. 26 (HealthDay News) --Middle-aged adults may face as high a risk for developing cancer as a result of radiation exposure as younger adults and children, new research suggests.

Although children are thought to be more sensitive to the long-term impact of radiation and related cancer risks, the current observation runs counter to some previous research suggesting that as people age, their vulnerability to radiation-induced cancer diminishes.

"Overall, the weight of the epidemiological evidence suggests that for adult exposures, radiation risks do not generally decrease with increasing age at exposure," a team of authors from Columbia University in New York City said in a news release.

The findings are published in the Oct. 25 online issue of the Journal of the National Cancer Institute.

The study's conclusion is based on a review of data concerning Japanese survivors of the atomic bomb, whose radiation cancers were attributable to one of two causes: genetic mutations caused by radiation that turned normal stem cells into precancerous cells, or an increase in the number of already existing precancerous cells.

Using a newly designed risk analysis model, the authors looked at the age of the survivors at the time the bomb was dropped and then tracked the ensuing incidence of cancer.

In turn, they used the same statistical framework to predict cancer risk by age of radiation exposure among people aged 30 to 60 in the U.S. population.

The finding: For some types of tumors, cancer risk does appear to increase following radiation exposure among individuals in this age bracket -- a discovery they said could have practical implications, since most X-ray procedures and jobs requiring radiation exposure involve middle-aged people.

In an accompanying editorial, John D. Boice of the International Epidemiology Institute in Rockville, Md., and Vanderbilt University in Nashville, noted that prior studies contradict the current findings and that generalizing the Japanese data to the U.S. population may be problematic.

But he concluded that the current effort "raises provocative hypotheses and conclusions that -- although preliminary -- draw attention to the continued importance of low-dose radiation exposures in our society."

More information

For more on radiation exposure risk, visit the U.S National Institutes of Health.

-- Alan Mozes

SOURCE: Journal of the National Cancer Institute, news release, Oct. 25, 2010.


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

Related medicine news :

1. Portable breast scanner allows cancer detection in the blink of an eye
2. VCA fellowship funding to extend ovarian cancer research
3. Colorectal cancer patients with gene mutation show better response to cancer agent
4. New Insights on Who Should Take Erbitux for Colon Cancer
5. Childhood Cancer Survivors Risk Future GI Problems
6. Targeted radiation therapy minimizes GI side effects for prostate cancer patients, Penn study shows
7. Use Anemia Drugs for Cancer Patients With Caution, Experts Say
8. New guideline from ASH and ASCO recommends caution regarding ESA use in cancer patients
9. Stroma may provide key to better cancer treatment
10. PSA Test Reduces Risk of Spread if Prostate Cancer Strikes
11. Aspirin May Help Patients Beat Prostate Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cancer Risk From Radiation Doesn't Fade With Age
(Date:4/29/2017)... ... April 29, 2017 , ... TransDark is a set ... one video to the next without having to set a single keyframe in ... to enhance your video production. , TransDark features dynamic transitions that momentarily splits the ...
(Date:4/28/2017)... (PRWEB) , ... April 28, 2017 , ... An April 24th article on ... stunning 180 pounds with the help of a weight loss surgery. The woman, declaring “I ... skin that have been left following her dramatic weight loss. Dr. Feiz & Associates notes ...
(Date:4/28/2017)... , ... April 28, 2017 , ... Beginning in 2017, ... their formulas. This begins with the popular ClearLungs Extra Strength formula. To ensure that ... the formula in the following ways:, , Removal of the ...
(Date:4/28/2017)... ... April 28, 2017 , ... Ushio America ... lamps offer an instant energy-saving solution for F32T8 fluorescent lamps on most instant-start ... ballasts. These 50,000 hour rated lamps utilize the existing electronic ballast, saving labor ...
(Date:4/28/2017)... ... April 28, 2017 , ... From ... College of Urgent Care Medicine will host industry leaders for the annual spring ... help those in the industry adapt to the issues currently affecting urgent care ...
Breaking Medicine News(10 mins):
(Date:4/20/2017)... 20, 2017  Cogentix Medical, Inc. (NASDAQ: CGNT), ... the Urology, Uro/Gyn and Gynecology markets with innovative ... has joined the Company as Senior Vice President, ... position, Mr. Keswani will report directly to ... "Our organization is delighted that Ash has joined ...
(Date:4/20/2017)... , April 20, 2017  RXi Pharmaceuticals Corporation ... therapeutics that address significant unmet medical needs, today ... the Company,s consumer product development program, based on ... Society for Investigative Dermatology (SID) 76 th ... and promote the sciences relevant to skin health ...
(Date:4/20/2017)... , April 20, 2017  AbbVie (NYSE: ... 99 percent (n=145/146) of chronic hepatitis C virus ... 5 or 6 and compensated cirrhosis (Child-Pugh A) ... (SVR 12 ) with its investigational, pan-genotypic regimen ... rates were seen following 12 weeks of G/P ...
Breaking Medicine Technology: