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Biologists conducted a unique experiment, which involved infecting human cells with dangerous bacteria during a space flight, to find out what would happen, and the result was alarming.
And the npj Microgravity Magazine points out that space flight is a difficult test for health, due to weightlessness, high levels of radiation, and other reasons. but, this is not every thing. Because the factors that weaken the human body, can lead to the strengthening of pathological microbes, which makes them more dangerous. For example, several years ago, researchers launched a bacterium, Salmonella enterica, into space, and after it returned from its space flight, it was used to infect human cells in the laboratory. The results showed that these bacteria became more virulent and dangerous.
And now researchers have revealed the results of the STL-IMMUNE experiment, which included sending bacteria into space, and also transplanted human gut cells, and in space they were infected. It also sent with it healthy human cells not infected with Salmonella, and another pair of samples (human cells infected and not infected with S. enterica) remained in the ground laboratory.
This unparalleled, unique experiment was conducted during the 2010 Space Shuttle Discovery flight to the International Space Station. Biologists have focused their attention on the work of human cells that have been attacked by Salmonella bacteria. They continued to “read” genes and make up proteins, depending on the results they obtained.
And it became clear to them, that infection with Salmonella bacteria on Earth affects 35 human genes, and in space on 62 genes (including 35 previous genes). Generally, the results confirmed that human cells during the spaceflight period become more susceptible to pathological infection.
Source: Vesti. Ru