Thursday, October 14, 2010

HUMAN STEM CELLS GROW DIFFERENTLY IN SPACE

HUMAN STEM CELLS GROW DIFFERENTLY IN SPACE

Proteins in human stem cells grown in microgravity don’t appear in stem cells grown in normal gravity. This has implications for long-term human voyages in space. It also has potential for helping solve ground-based medical problems. Other well-known impacts of microgravity on the human body include muscle loss and changes in the cardiovascular and immune system. astronauts lose about 1 percent of their bone mineral density every month they are in space. In addition to a vigorous daily exercise in orbit, astronauts are participating in a study to see if taking bone-building drugs known as bisphosphonates can stave off the deterioration.

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