Featured Research

from universities, journals, and other organizations

Radiation Exposure In Utero And In Young Children Increases Adult Cancer Risk

Date:
March 13, 2008
Source:
Journal of the National Cancer Institute
Summary:
Radiation exposure before birth or during early childhood increased the risk of adult solid cancers, according to a study of survivors of the Hiroshima and Nagasaki bombings. It is known that radiation exposure during fetal development increases the risk of childhood cancers and that exposure during early childhood increases the risk of adult-onset cancers. However it was not known if radiation exposure to the fetus increases the risk of adult cancers.

Radiation exposure before birth or during early childhood increased the risk of adult solid cancers, according to a study of survivors of the Hiroshima and Nagasaki bombings.

Related Articles


It is known that radiation exposure during fetal development increases the risk of childhood cancers and that exposure during early childhood increases the risk of adult-onset cancers. However it was not known if radiation exposure to the fetus increases the risk of adult cancers.

To find out, Dale Preston, Ph.D., of the Hirosoft International Corporation in Eureka, Calif., and colleagues at the Radiation Effects Research Foundation in Hiroshima, Japan, calculated the excess risk of solid cancers in adult survivors of the Hiroshima and Nagasaki bombings, relative to non-exposed populations.

Of the 2,452 study participants who were exposed to radiation before birth, 94 have developed adult cancers, as did 649 of the 15,388 individuals who were exposed between birth and six years of age. By age 50, the excess relative risk for those exposed before birth was 1.0 per Sv (a unit for measuring radiation exposure), and for those exposed as young children, it was 1.7 Sv at age 50.

The researchers note that the overall risk of solid cancers increases with age, and so continuing to follow the study participants as they age will be important. Also, the investigators only considered solid cancers, and did not examine the rate of blood cancers, such as leukemia.

"The present data suggested that increases in risks of adult-onset cancer among those exposed to radiation in utero may be smaller than for those exposed in early childhood," the authors write. That said, these data may be important when considering the public health risks of medical and occupational radiation exposure for pregnant women.

This research was published in the March 11 issue of the Journal of the National Cancer Institute.


Story Source:

The above story is based on materials provided by Journal of the National Cancer Institute. Note: Materials may be edited for content and length.


Cite This Page:

Journal of the National Cancer Institute. "Radiation Exposure In Utero And In Young Children Increases Adult Cancer Risk." ScienceDaily. ScienceDaily, 13 March 2008. <www.sciencedaily.com/releases/2008/03/080311190417.htm>.
Journal of the National Cancer Institute. (2008, March 13). Radiation Exposure In Utero And In Young Children Increases Adult Cancer Risk. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2008/03/080311190417.htm
Journal of the National Cancer Institute. "Radiation Exposure In Utero And In Young Children Increases Adult Cancer Risk." ScienceDaily. www.sciencedaily.com/releases/2008/03/080311190417.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Experimental Ebola Vaccine Shows Promise In Human Trial

Experimental Ebola Vaccine Shows Promise In Human Trial

Newsy (Nov. 27, 2014) — A recent test of a prototype Ebola vaccine generated an immune response to the disease in subjects. Video provided by Newsy
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com
From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) — The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins