Just when you think you've seen it all, our eyes look to be victims of a low-gravity environments, too. According to new research published in the January 2016 issue of The FASEB Journal, two significant genetic differences in enzymes that direct the one-carbon pathway of metabolism can affect astronaut vision. Human genetic variation in these enzymes has been implicated in many diseases, including cardiovascular disease, stroke, polycystic ovarian syndrome, and more. The findings in astronauts may help identify issues related to these diseases, and conversely, findings from individuals with these diseases may increase the understanding of the changes in astronauts.
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