While scientists are still working to understand Impact on an extended journey into space It can be on the human body, and the research has suggested in recent years that Astronomers may face some dramatic changes to a large extent On both physiological and psychological levels. In the latest Ticket Leaded by a team in California University San DiegoThe researchers have found signs of rapid aging in the human stem cells that spent almost a month in space.
The research focused on the HSPCS stem, which is decisive in the formation of doll and immune cells. The stem cells were sent to the International Space Station of 32-45 days using nanoparticles that have been specially developed for their broth. Another group on Earth remained at the Kennedy Space Center. The cells that went to ISS showed a set of changes, including low self -renovation capabilities, a greater ability to damage DNA and inflammation in mitochondria. However, the damage does not seem permanent. The team notes that the changes were partially reflected at least when the cells were removed from the space environment.
“The space is a final stress test for the human body,” Catheronna Jameson, director of the California Stem Cell Institute at San Diego Sanford. “These results are very important because they show that space pressures-such as precise gravity and cosmic galaxy radiation-can accelerate the molecular aging of stem cells in the blood. Understanding these changes not only teach how to protect astronauts during long-term missions but helps us to design human aging and diseases such as cancer here on Earth.”
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