Navigation Links
Future Astronauts May Be Exposed to Alzheimer's Risk Factor
Date:1/2/2013

WEDNESDAY, Jan. 2 (HealthDay News) -- As NASA sets the stage for increasingly ambitious trips into space, new research highlights a potential hazard for astronauts on long-range missions: Alzheimer's disease.

According to a new animal study published in the Dec. 31 issue of PLoS ONE, the kind of cosmic radiation exposure faced by those on board flights heading toward the far-flung reaches of the galaxy has the potential to speed up the onset of the neurological disease.

"Galactic cosmic radiation poses a significant threat to future astronauts," senior study author Dr. M. Kerry O'Banion, a professor in the University of Rochester Medical Center's department of neurobiology and anatomy, said in a URMC news release.

"The possibility that radiation exposure in space may give rise to health problems such as cancer has long been recognized," he added. "However, this study shows for the first time that exposure to radiation levels equivalent to a mission to Mars could produce cognitive [mental] problems and speed up changes in the brain that are associated with Alzheimer's disease."

The authors point out that here on Earth the planet's magnetic field offers protection from space radiation. Once in deep space, however, all bets are off, with travelers exposed to a never-ending bath of low-level radioactive particles.

For the most, the bombardment is at a low enough level that short-term space travel is not overly concerning, the researchers say

The picture changes, however, when contemplating longer-term trips, such as one to Mars currently planned for 2035 and predicted to take about three years round-trip.

O'Banion, URMC graduate student Jonathan Cherry, the study's first author, and colleagues analyzed the impact on from exposure to high-mass, high-charged iron particles, which move incredibly fast and are able to go right through most solid objects.

Mice exposed to doses deemed comparable to what astronauts would have to field during a trip to Mars were much more likely to fare poorly on a series of mental acuity tests than unexposed mice.

The brains of exposed mice displayed telltale evidence of Alzheimer's onset in the form of vascular alterations, as well as an uptick in the accumulation of a protein plaque called beta amyloid.

"These findings clearly suggest that exposure to radiation in space has the potential to accelerate the development of Alzheimer's disease," O'Banion said. "This is yet another factor that NASA, which is clearly concerned about the health risks to its astronauts, will need to take into account as it plans future missions."

More information

For more on Alzheimer's, visit the U.S. National Institutes of Health.

--Alan Mozes

SOURCE: PLoS ONE, news release, Dec. 31, 2012


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Moffitt researchers find adolescents with cancer concerned about their future reproductive health
2. Palpitations are predictive of future atrial fibrillation
3. Palpitations May Signal Future Heart Rhythm Problem
4. Global Energy Assessment identifies pathways to a sustainable energy future
5. Future reproductive outcomes for women who have had an ectopic pregnancy
6. Google Rolls Out Another Panda Algorithm Update – Small Businesses Plan for the Future of SEO
7. Rising Solar Engineering and Design Firm Enters 1.7 MW's in Connecticut ZREC Auction and Positions for Future Growth
8. UCLA School of Dentistry gets $5M from NIH to train future leaders in oral health research
9. Gel Shows Promise as Future Male Contraceptive
10. Drive toward a viable City of the Future
11. Engineering the smart health care of the future
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Future Astronauts May Be Exposed to Alzheimer's Risk Factor
(Date:5/25/2016)... ... May 25, 2016 , ... Conrad Siegel ... Medical and Prescription Drug survey , an employee benefits survey ... was conducted in December 2015, indicates that employers are turning to consumer directed ...
(Date:5/25/2016)... Francisco, CA (PRWEB) , ... May 25, 2016 , ... For more than fifty years, ... en masse, we changed our diets to conform to the latest nutritional advice – advice ... According to the NIH, more than 2 in 3 American adults are considered to be ...
(Date:5/25/2016)... ... May 25, 2016 , ... BeniComp Insurance Company, ... spike in their clients' employee participation for their wellness initiatives. BeniComp clients ... a high-deductible health plan with outcome-based deductible incentives. As a result, BeniComp clients ...
(Date:5/25/2016)... ... May 25, 2016 , ... First Choice Emergency Room ... Dr. Anh Tat Nguyen, as the Medical Director of its new DeSoto facility. ... of our new DeSoto location,” said Dr. James M. Muzzarelli, Executive Medical Director of ...
(Date:5/25/2016)... ... May 25, 2016 , ... ... popular demand for minimally invasive, endoscopic spine surgeries in the Montgomery County, Howard ... seeing patients in the Germantown office of American Spine every Monday. He will ...
Breaking Medicine News(10 mins):
(Date:5/24/2016)... May 24, 2016 Cirujanos holandeses ... ayudar a los médicos a compartir sus mejores prácticas ... escala mundial. Profesionales médicos de Europa, África, ... apuntado a la aplicación, que combina la transmisión en ... totalmente seguro. Educación   "Imagine un ...
(Date:5/24/2016)...   , Study met both ... in , Excellent plus Good ... of the ascending colon   ,      ... announced new positive data from the phase III MORA study for ... litre PEG with ascorbate. The study met both primary endpoints showing ...
(Date:5/24/2016)... May 24, 2016 ARANZ Medical ... the healthcare sector, has been named the Coretex Hi-Tech Emerging ... 2016. Dr Bruce Davey , CEO of ... team.  It,s really good to be recognised for the work ... products are used in 35 countries around the world from ...
Breaking Medicine Technology: