fbpx

Just two weeks in orbit can damage the eyes

 

Just 13 days in space may be enough to cause profound changes in eye structure and in the expression of some genes, according to researchers from the United States.

 

The study looked at how low gravity and radiation and oxidative damage affect mice after time spent in space. This study is the first to examine eye-related gene expression and cell behaviour after spaceflight.

 

“We found several changes in the expression of genes that help cells cope with oxidative stress in the retina, possibly caused by radiation exposure,” said Patricia Chévez-Barrios, the study’s principal investigator. “These changes were partially reversible upon return to Earth. We also saw optic nerve changes consistent with mechanical injury, but these changes did not resolve. And we saw changes in the expression of DNA damage repair genes and in apoptotic pathways, which help the body destroy cells that are irreparably damaged.”

 

The damage to the eyes is a problem for some astronauts back on Earth. It could also make it difficult for them to complete long missions, such as round-trip travel to Mars (12 to 16 months) or to the moons of Jupiter (two years). “We don’t know if damage caused by longer periods of oxidative stress will be more severe. Only more studies with longer exposure times may help answer this question.”

Source:

http://www.sciencedaily.com/releases/2013/10/131024121156.htm

Featured Posts

Perfect Optical Reebok logos

Perfect Optical Partners with Mondottica Group for Exclusive Reebok Eyewear Distribution in Canada

Perfect Optical announces a new partnership with Mondottica Group, marking a significant step in bringing innovative eyewear solutions to the Canadian market.

Learn More
Blackfin G7 Italia 2024

G7: Blackfin Symbol of Italian Excellence

In conjunction with the G7 Summit, currently being held in Borgo Egnazia in Puglia, Italy not only welcomes the heads of state and government but also showcases authentic Made in Italy products through exclusive gifts for the distinguished guests.

Read more
GIGI Studios Anastasia

GIGI STUDIOS Launches the XS Collection for Petite Faces

Anastasia features a geometrical model in a hexagonal shape made in crystal acetate for the front, Havana temples and a laminated endpiece.

Read more

Local Leaders Break Ground on the Waterloo Eye Institute

Former Governor General of Canada David Johnston reflects on the institute’s importance to the community at a ceremony with regional stakeholders and champions.

Read more
MIDO logo

For the Second Year, MIDO Takes First Prize in the MEDIASTARS Press Section with “SPHERES” Communication Campaign

The campaign, developed by Max Galli in partnership with Mixer Group, was the first in the trade show industry to be created with Artificial Intelligence.

Read more
Perfect Optical Reebok logos

Perfect Optical Partners with Mondottica Group for Exclusive Reebok Eyewear Distribution in Canada

Perfect Optical announces a new partnership with Mondottica Group, marking a significant step in bringing innovative eyewear solutions to the Canadian market.

Learn More
Blackfin G7 Italia 2024

G7: Blackfin Symbol of Italian Excellence

In conjunction with the G7 Summit, currently being held in Borgo Egnazia in Puglia, Italy not only welcomes the heads of state and government but also showcases authentic Made in Italy products through exclusive gifts for the distinguished guests.

Read More
GIGI Studios Anastasia

GIGI STUDIOS Launches the XS Collection for Petite Faces

Anastasia features a geometrical model in a hexagonal shape made in crystal acetate for the front, Havana temples and a laminated endpiece.

Read More

Local Leaders Break Ground on the Waterloo Eye Institute

Former Governor General of Canada David Johnston reflects on the institute’s importance to the community at a ceremony with regional stakeholders and champions.

Read More
MIDO logo

For the Second Year, MIDO Takes First Prize in the MEDIASTARS Press Section with “SPHERES” Communication Campaign

The campaign, developed by Max Galli in partnership with Mixer Group, was the first in the trade show industry to be created with Artificial Intelligence.

Read More
Perfect Optical Reebok logos

Perfect Optical Partners with Mondottica Group for Exclusive Reebok Eyewear Distribution in Canada

Perfect Optical announces a new partnership with Mondottica Group, marking a significant step in bringing innovative eyewear solutions to the Canadian market.

Learn More
Blackfin G7 Italia 2024

G7: Blackfin Symbol of Italian Excellence

In conjunction with the G7 Summit, currently being held in Borgo Egnazia in Puglia, Italy not only welcomes the heads of state and government but also showcases authentic Made in Italy products through exclusive gifts for the distinguished guests.

Read more
GIGI Studios Anastasia

GIGI STUDIOS Launches the XS Collection for Petite Faces

Anastasia features a geometrical model in a hexagonal shape made in crystal acetate for the front, Havana temples and a laminated endpiece.

Read more

Local Leaders Break Ground on the Waterloo Eye Institute

Former Governor General of Canada David Johnston reflects on the institute’s importance to the community at a ceremony with regional stakeholders and champions.

Read more
MIDO logo

For the Second Year, MIDO Takes First Prize in the MEDIASTARS Press Section with “SPHERES” Communication Campaign

The campaign, developed by Max Galli in partnership with Mixer Group, was the first in the trade show industry to be created with Artificial Intelligence.

Read more
Perfect Optical Reebok logos

Perfect Optical Partners with Mondottica Group for Exclusive Reebok Eyewear Distribution in Canada

Perfect Optical announces a new partnership with Mondottica Group, marking a significant step in bringing innovative eyewear solutions to the Canadian market.

Learn More
Blackfin G7 Italia 2024

G7: Blackfin Symbol of Italian Excellence

In conjunction with the G7 Summit, currently being held in Borgo Egnazia in Puglia, Italy not only welcomes the heads of state and government but also showcases authentic Made in Italy products through exclusive gifts for the distinguished guests.

Read more
GIGI Studios Anastasia

GIGI STUDIOS Launches the XS Collection for Petite Faces

Anastasia features a geometrical model in a hexagonal shape made in crystal acetate for the front, Havana temples and a laminated endpiece.

Read more

Local Leaders Break Ground on the Waterloo Eye Institute

Former Governor General of Canada David Johnston reflects on the institute’s importance to the community at a ceremony with regional stakeholders and champions.

Read more
MIDO logo

For the Second Year, MIDO Takes First Prize in the MEDIASTARS Press Section with “SPHERES” Communication Campaign

The campaign, developed by Max Galli in partnership with Mixer Group, was the first in the trade show industry to be created with Artificial Intelligence.

Read more