Discovering NASA: If you stay more than a year in space, your genes change

NASA's preliminary results have found that 7% of Scott Kelly's genes were not normal after returning to Earth.

The study watched what happened to Kelly before, during and after a year's stay at the International Space Station through a comparison with his identical twin, Mark, who stayed on the ground.

NASA has learned that previous identical twins are no longer genetically identical, reports “CNN” Transmission Periscope.

The transformation of 7% of Scott's DNA suggests long-term changes in genes related to at least five biological roads and functions.

To find the physical changes caused by time in space, scientists measured Scott's metabolism (which is necessary for preserving life), cytokins (secreted by immune cells) and proteins, before, during, and after his mission.

The study has learned that space travel is related to reducing stress from oxygen, which increases inflammation and dramatic changes in nutrients that affect gene expression.

As genes turn on and off, the genes change in the cell can occur.

Mason's work shows that one of the most important changes in Scott's cells was hypoxis, or a defective amount of tissue oxygen, perhaps due to a lack of oxygen and high levels of carbon dioxide.

Possible damage to mitocondrites, “The variety of cells”, also occurred in Scott's cells, as shown by mitocolorial stress and increased levels of blood mitochondries.

The discovery has revealed hyperactive immune activity, thought to be the result of its diverse environment - space./Periscopi/