Deep space travelers could face ‘significant’ gastrointestinal damage from radiation

space
Image credit: Shutterstock

Deep-space travel could even cause significant gastrointestinal (GI) damage to astronauts, according to one new study.

Researchers at Georgetown University Medical Center (GUMC) have exposed mice to radiation to simulate how galactic cosmic radiation (GCR) in deep-space will affect future astronauts. Their results suggest that the radiation could cause serious GI damage. Their study even raises concerns about how this radiation could possibly cause stomach and colon tumor growth.

Every three to five days, the top layer of cells in our GI tract is replaced with brand new cells. This process is part of healthy GI function. When this replacement process is disturbed, it can change how we absorb nutrients and even lead to cancer, according to Albert Fornace Jr., co-author of the study.

Related article:  We may need to genetically engineer astronauts to protect them from radiation during long space flights

Additionally, the research team found that the mice exposed to iron radiation produced more senescent cells, which are a type of cell incapable of regular cell division. These cells can slow down the replacement of GI cells, therefore slowing down GI function, cause oxidative stress and even cause serious GI damage.

This harm caused by the radiation appeared to be permanent, according to the statement.

Once they understand the risk better, [researcher Kamal] Datta said, “the goal is to develop protection measures whether we can test some drug or medicine that can prevent all the changes we observe.”

Read full, original post: Deep-Space Could Seriously Damage Astronaut GI Tracts, a New Study Finds

Outbreak
Outbreak Daily Digest
Biotech Facts & Fallacies
Talking Biotech
Genetics Unzipped
Video: Test everyone – Slovakia goes its own way to control COVID

Video: Test everyone – Slovakia goes its own way to control COVID

As Europe sees record coronavirus cases and deaths, Slovakia is testing its entire adult population. WSJ's Drew Hinshaw explains how ...
mag insects image superjumbo v

Disaster interrupted: Which farming system better preserves insect populations: Organic or conventional?

A three-year run of fragmentary Armageddon-like studies had primed the journalism pumps and settled the media framing about the future ...
dead bee desolate city

Are we facing an ‘Insect Apocalypse’ caused by ‘intensive, industrial’ farming and agricultural chemicals? The media say yes; Science says ‘no’

The media call it the “Insect Apocalypse”. In the past three years, the phrase has become an accepted truth of ...
globalmethanebudget globalcarbonproject cropped x

Infographic: Cows cause climate change? Agriculture scientist says ‘belching bovines’ get too much blame

A recent interview by Caroline Stocks, a UK journalist who writes about food, agriculture and the environment, of air quality ...
organic hillside sweet corn x

Organic v conventional using GMOs: Which is the more sustainable farming?

Many consumers spend more for organic food to avoid genetically modified products in part because they believe that “industrial agriculture” ...
benjamin franklin x

Are most GMO safety studies funded by industry?

The assertion that biotech companies do the research and the government just signs off on it is false ...
favicon

Environmental Working Group: EWG challenges safety of GMOs, food pesticide residues

Known by some as the "Environmental Worrying Group," EWG lobbies for tighter GMO legislation and famously puts out annual "dirty dozen" list of fruits and ...
m hansen

Michael Hansen: Architect of Consumers Union ongoing anti-GMO campaign

Michael K. Hansen (born 1956) is thought by critics to be the prime mover behind the ongoing campaign against agricultural biotechnology at Consumer Reports. He is an ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
Optional. Mail on special occasions.
Send this to a friend