Investigations of the blood of astronauts indicate an increased stress level in a longest stay in weightlessness. They have a significantly stronger concentration of certain dna pieces in the blood, so-called cfdna, as an international team has found out. "For the study, we have studied the blood of a nasa astronaut, during and after his use on the iss and compared it to the blood of his identical twin brother on earth", said daniela bezdan from the university hospital tubingen. The 1964 born twin brother mark and scott kelly have already participated in numerous investigations. They were a few times in all.
Preparations for flights to mars
The researchers hope for the study also a better medical monitoring of astronauts during their space flowing. Cell changes could be analyzed with the help of blood markers in the future aboard the room, as bezdan explained. "Astronauts are trained in trained blood."
Samples could also be sent to earth by capsules from the international space station iss to examine them in laboratories more precisely. "We have already tested that in the twin study." the research results are also intended to provide approaches for possible drugs and treatment therapies that could be used for long-range space flows, such as mars.