Featured Research

from universities, journals, and other organizations

Experienced Pilots May Be At Risk Of DNA Damage From Ionizing Radiation

Date:
December 16, 2008
Source:
BMJ-British Medical Journal
Summary:
Airline pilots who have flown for many years may be at risk of DNA damage from prolonged exposure to cosmic ionizing radiation, suggests a study in Occupational and Environmental Medicine.

Airline pilots who have flown for many years may be at risk of DNA damage from prolonged exposure to cosmic ionising radiation, suggests a study published ahead of print in Occupational and Environmental Medicine.

Related Articles


The research team compared the rate of chromosomal (DNA) abnormalities in blood samples taken from 83 airline pilots and 50 university faculty members from the same US city.

The two groups were matched for age (35 to 56), sex (male), and smoking habit (light or non-smokers). Age and smoking are known risk factors for cumulative DNA damage.

Fifty eight of the pilots (70%) had served in the military, and they had undertaken significantly more personal air travel than the university staff. Both these factors would have exposed them to more ionising radiation.

The researchers were looking in particular for the number of times pairs of chromosomes had changed places (translocations), expressed as a score per 100 cell equivalents (CE).

Chromosome translocations are a reliable indicator of cumulative DNA damage associated with radiation exposure as they are not rapidly eliminated from the blood like other forms of chromosomal abnormality.

The average frequency of chromosome translocation was higher among the pilots than the faculty staff (0.39 compared with 0.32/100 CE), but after adjusting for age and other influential factors, there was no difference.

But when the analysis focused on how long pilots had been flying, differences emerged.

The chromosome translocation frequency of those who had flown the most was more than twice that of those who had flown the least, after taking age into account.

Adjusting for the impact of cigarette smoking, personal air travel, and diagnostic x-ray procedures did not affect these findings.

Chromosomal abnormalities have been associated with an increased risk of cancer. And the authors conclude that their results suggest that highly experienced flight pilots may be exposed to "biologically significant doses of ionising radiation."


Story Source:

The above story is based on materials provided by BMJ-British Medical Journal. Note: Materials may be edited for content and length.


Cite This Page:

BMJ-British Medical Journal. "Experienced Pilots May Be At Risk Of DNA Damage From Ionizing Radiation." ScienceDaily. ScienceDaily, 16 December 2008. <www.sciencedaily.com/releases/2008/12/081210205048.htm>.
BMJ-British Medical Journal. (2008, December 16). Experienced Pilots May Be At Risk Of DNA Damage From Ionizing Radiation. ScienceDaily. Retrieved March 31, 2015 from www.sciencedaily.com/releases/2008/12/081210205048.htm
BMJ-British Medical Journal. "Experienced Pilots May Be At Risk Of DNA Damage From Ionizing Radiation." ScienceDaily. www.sciencedaily.com/releases/2008/12/081210205048.htm (accessed March 31, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Tuesday, March 31, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

7-Year-Old Girl Gets 3-D Printed 'robohand'

7-Year-Old Girl Gets 3-D Printed 'robohand'

AP (Mar. 31, 2015) — Although she never had much interest in prosthetic limbs before, Faith Lennox couldn&apos;t wait to slip on her new robohand. The 7-year-old, who lost part of her left arm when she was a baby, grabbed it as soon as it came off a 3-D printer. (March 31) Video provided by AP
Powered by NewsLook.com
Solitair Device Aims to Takes Guesswork out of Sun Safety

Solitair Device Aims to Takes Guesswork out of Sun Safety

Reuters - Innovations Video Online (Mar. 31, 2015) — The Solitair device aims to take the confusion out of how much sunlight we should expose our skin to. Small enough to be worn as a tie or hair clip, it monitors the user&apos;s sun exposure by taking into account their skin pigment, location and schedule. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Soda, Salt and Sugar: The Next Generation of Taxes

Soda, Salt and Sugar: The Next Generation of Taxes

Washington Post (Mar. 30, 2015) — Denisa Livingston, a health advocate for the Dinι Community Advocacy Alliance, and the Post&apos;s Abby Phillip discuss efforts around the country to make unhealthy food choices hurt your wallet as much as your waistline. Video provided by Washington Post
Powered by NewsLook.com
UnitedHealth Buys Catamaran

UnitedHealth Buys Catamaran

Reuters - Business Video Online (Mar. 30, 2015) — The $12.8 billion merger will combine the U.S.&apos; third and fourth largest pharmacy benefit managers. Analysts say smaller PBMs could also merge. Fred Katayama reports. Video provided by Reuters
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