Mice in Space Get Liver Damage After Two Weeks

Lab mice that spent just two weeks in orbit showed early signs of liver
damage upon returning to Earth, raising concern about what long-duration
spaceflight might do to humans, researchers said Wednesday.

... Further study on the tissues of mice flown at the International Space
Station for months could shed more light on whether microgravity plays a
role in liver damage.

We need to look at mice involved in longer duration space flight to see if
there are compensatory mechanisms that come into play that might protect
them from serious damage, Jonscher said.

http://news.discovery.com/space/private-spaceflight/mice-in-space-showed-liver-damage-after-two-weeks-160421.htm

... Further study on the tissues of mice flown at the International Space Station for months could shed more light on whether microgravity plays a role in liver damage.
We need to look at mice involved in longer duration space flight to see if there are compensatory mechanisms that come into play that might protect them from serious damage, Jonscher said.
http://news.discovery.com/space/private-spaceflight/mice-in-space-showed-liver-damage-after-two-weeks-160421.htm