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:6/25/2016)... Miami, FL (PRWEB) , ... June 25, 2016 , ... The temporary closing of Bruton ... Plant City Observer , brings up a new, often overlooked aspect of head lice: ... The closing for fumigation is not a common occurrence, but a necessary one in the ...
(Date:6/25/2016)... ... 25, 2016 , ... Dr. Calvin Johnson has dedicated his ... implemented orthobiologic procedures as a method for treating his patients. The procedure is ... to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use to help ...
(Date:6/24/2016)... ... 2016 , ... Those who have experienced traumatic events may suffer from a ... such as drug or alcohol abuse, as a coping mechanism. To avoid this pain ... following a traumatic event. , Trauma sufferers tend to feel a range of emotions, ...
(Date:6/24/2016)... ... , ... Global law firm Greenberg Traurig, P.A. announced that 20 Florida attorneys ... peers for this recognition are considered among the top 2 percent of lawyers practicing ... members of this year’s Legal Elite Hall of Fame: Miami Shareholders Mark D. ...
(Date:6/24/2016)... ... June 24, 2016 , ... People across the U.S. are ... Code Talker Award, an essay contest in which patients and their families pay tribute ... presented at the 2016 National Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 2016 Research and Markets has announced ... Diagnostic Tests" report to their offering. ... The World Market for Companion Diagnostics covers ... Market analysis in the report includes the following: ... Diagnostic Kits) by Region (N. America, EU, ROW), 2015-2020 ...
(Date:6/24/2016)... , June 24, 2016  Arkis BioSciences, a ... invasive and more durable cerebrospinal fluid treatments, today ... The Series-A funding is led by Innova Memphis, ... and other private investors.  Arkis, new financing will ... and the market release of its in-licensed Endexo® ...
(Date:6/23/2016)... -- Research and Markets has announced the ... (Organic Chemical (Sugar, Petrochemical, Glycerin), Inorganic Chemical), Functionality (Filler, ... Global Forecast to 2021" report to their offering. ... pharmaceutical excipients market is projected to reach USD 8.1 ... the forecast period 2016 to 2021. ...
Breaking Medicine Technology: